hbase-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From git-site-r...@apache.org
Subject [16/37] hbase-site git commit: Published site at 409e742ac3bdbff027b136a87339f4f5511da07d.
Date Sat, 25 Aug 2018 14:48:07 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c7b180e2/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.HdfsEntry.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.HdfsEntry.html b/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.HdfsEntry.html
index cd509b8..a957d31 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.HdfsEntry.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/util/HBaseFsck.HdfsEntry.html
@@ -152,5137 +152,5182 @@
 <span class="sourceLineNo">144</span>import org.apache.hadoop.util.ReflectionUtils;<a name="line.144"></a>
 <span class="sourceLineNo">145</span>import org.apache.hadoop.util.Tool;<a name="line.145"></a>
 <span class="sourceLineNo">146</span>import org.apache.hadoop.util.ToolRunner;<a name="line.146"></a>
-<span class="sourceLineNo">147</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.147"></a>
-<span class="sourceLineNo">148</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.149"></a>
-<span class="sourceLineNo">150</span>import org.apache.zookeeper.KeeperException;<a name="line.150"></a>
-<span class="sourceLineNo">151</span>import org.slf4j.Logger;<a name="line.151"></a>
-<span class="sourceLineNo">152</span>import org.slf4j.LoggerFactory;<a name="line.152"></a>
-<span class="sourceLineNo">153</span><a name="line.153"></a>
-<span class="sourceLineNo">154</span>import org.apache.hbase.thirdparty.com.google.common.base.Joiner;<a name="line.154"></a>
-<span class="sourceLineNo">155</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.155"></a>
-<span class="sourceLineNo">156</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;<a name="line.156"></a>
-<span class="sourceLineNo">157</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.157"></a>
-<span class="sourceLineNo">158</span>import org.apache.hbase.thirdparty.com.google.common.collect.Multimap;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>import org.apache.hbase.thirdparty.com.google.common.collect.Ordering;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>import org.apache.hbase.thirdparty.com.google.common.collect.TreeMultimap;<a name="line.160"></a>
-<span class="sourceLineNo">161</span><a name="line.161"></a>
-<span class="sourceLineNo">162</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.162"></a>
-<span class="sourceLineNo">163</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService.BlockingInterface;<a name="line.163"></a>
-<span class="sourceLineNo">164</span><a name="line.164"></a>
-<span class="sourceLineNo">165</span>/**<a name="line.165"></a>
-<span class="sourceLineNo">166</span> * HBaseFsck (hbck) is a tool for checking and repairing region consistency and<a name="line.166"></a>
-<span class="sourceLineNo">167</span> * table integrity problems in a corrupted HBase.<a name="line.167"></a>
-<span class="sourceLineNo">168</span> * &lt;p&gt;<a name="line.168"></a>
-<span class="sourceLineNo">169</span> * Region consistency checks verify that hbase:meta, region deployment on region<a name="line.169"></a>
-<span class="sourceLineNo">170</span> * servers and the state of data in HDFS (.regioninfo files) all are in<a name="line.170"></a>
-<span class="sourceLineNo">171</span> * accordance.<a name="line.171"></a>
+<span class="sourceLineNo">147</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.147"></a>
+<span class="sourceLineNo">148</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.148"></a>
+<span class="sourceLineNo">149</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>import org.apache.yetus.audience.InterfaceStability;<a name="line.150"></a>
+<span class="sourceLineNo">151</span>import org.apache.zookeeper.KeeperException;<a name="line.151"></a>
+<span class="sourceLineNo">152</span>import org.slf4j.Logger;<a name="line.152"></a>
+<span class="sourceLineNo">153</span>import org.slf4j.LoggerFactory;<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span>import org.apache.hbase.thirdparty.com.google.common.base.Joiner;<a name="line.155"></a>
+<span class="sourceLineNo">156</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.156"></a>
+<span class="sourceLineNo">157</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableList;<a name="line.157"></a>
+<span class="sourceLineNo">158</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.158"></a>
+<span class="sourceLineNo">159</span>import org.apache.hbase.thirdparty.com.google.common.collect.Multimap;<a name="line.159"></a>
+<span class="sourceLineNo">160</span>import org.apache.hbase.thirdparty.com.google.common.collect.Ordering;<a name="line.160"></a>
+<span class="sourceLineNo">161</span>import org.apache.hbase.thirdparty.com.google.common.collect.TreeMultimap;<a name="line.161"></a>
+<span class="sourceLineNo">162</span><a name="line.162"></a>
+<span class="sourceLineNo">163</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService.BlockingInterface;<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span>/**<a name="line.166"></a>
+<span class="sourceLineNo">167</span> * HBaseFsck (hbck) is a tool for checking and repairing region consistency and<a name="line.167"></a>
+<span class="sourceLineNo">168</span> * table integrity problems in a corrupted HBase. This tool was written for hbase-1.x. It does not<a name="line.168"></a>
+<span class="sourceLineNo">169</span> * work with hbase-2.x; it can read state but is not allowed to change state; i.e. effect 'repair'.<a name="line.169"></a>
+<span class="sourceLineNo">170</span> * See hbck2 (HBASE-19121) for a hbck tool for hbase2.<a name="line.170"></a>
+<span class="sourceLineNo">171</span> *<a name="line.171"></a>
 <span class="sourceLineNo">172</span> * &lt;p&gt;<a name="line.172"></a>
-<span class="sourceLineNo">173</span> * Table integrity checks verify that all possible row keys resolve to exactly<a name="line.173"></a>
-<span class="sourceLineNo">174</span> * one region of a table.  This means there are no individual degenerate<a name="line.174"></a>
-<span class="sourceLineNo">175</span> * or backwards regions; no holes between regions; and that there are no<a name="line.175"></a>
-<span class="sourceLineNo">176</span> * overlapping regions.<a name="line.176"></a>
-<span class="sourceLineNo">177</span> * &lt;p&gt;<a name="line.177"></a>
-<span class="sourceLineNo">178</span> * The general repair strategy works in two phases:<a name="line.178"></a>
-<span class="sourceLineNo">179</span> * &lt;ol&gt;<a name="line.179"></a>
-<span class="sourceLineNo">180</span> * &lt;li&gt; Repair Table Integrity on HDFS. (merge or fabricate regions)<a name="line.180"></a>
-<span class="sourceLineNo">181</span> * &lt;li&gt; Repair Region Consistency with hbase:meta and assignments<a name="line.181"></a>
-<span class="sourceLineNo">182</span> * &lt;/ol&gt;<a name="line.182"></a>
-<span class="sourceLineNo">183</span> * &lt;p&gt;<a name="line.183"></a>
-<span class="sourceLineNo">184</span> * For table integrity repairs, the tables' region directories are scanned<a name="line.184"></a>
-<span class="sourceLineNo">185</span> * for .regioninfo files.  Each table's integrity is then verified.  If there<a name="line.185"></a>
-<span class="sourceLineNo">186</span> * are any orphan regions (regions with no .regioninfo files) or holes, new<a name="line.186"></a>
-<span class="sourceLineNo">187</span> * regions are fabricated.  Backwards regions are sidelined as well as empty<a name="line.187"></a>
-<span class="sourceLineNo">188</span> * degenerate (endkey==startkey) regions.  If there are any overlapping regions,<a name="line.188"></a>
-<span class="sourceLineNo">189</span> * a new region is created and all data is merged into the new region.<a name="line.189"></a>
-<span class="sourceLineNo">190</span> * &lt;p&gt;<a name="line.190"></a>
-<span class="sourceLineNo">191</span> * Table integrity repairs deal solely with HDFS and could potentially be done<a name="line.191"></a>
-<span class="sourceLineNo">192</span> * offline -- the hbase region servers or master do not need to be running.<a name="line.192"></a>
-<span class="sourceLineNo">193</span> * This phase can eventually be used to completely reconstruct the hbase:meta table in<a name="line.193"></a>
-<span class="sourceLineNo">194</span> * an offline fashion.<a name="line.194"></a>
-<span class="sourceLineNo">195</span> * &lt;p&gt;<a name="line.195"></a>
-<span class="sourceLineNo">196</span> * Region consistency requires three conditions -- 1) valid .regioninfo file<a name="line.196"></a>
-<span class="sourceLineNo">197</span> * present in an HDFS region dir,  2) valid row with .regioninfo data in META,<a name="line.197"></a>
-<span class="sourceLineNo">198</span> * and 3) a region is deployed only at the regionserver that was assigned to<a name="line.198"></a>
-<span class="sourceLineNo">199</span> * with proper state in the master.<a name="line.199"></a>
-<span class="sourceLineNo">200</span> * &lt;p&gt;<a name="line.200"></a>
-<span class="sourceLineNo">201</span> * Region consistency repairs require hbase to be online so that hbck can<a name="line.201"></a>
-<span class="sourceLineNo">202</span> * contact the HBase master and region servers.  The hbck#connect() method must<a name="line.202"></a>
-<span class="sourceLineNo">203</span> * first be called successfully.  Much of the region consistency information<a name="line.203"></a>
-<span class="sourceLineNo">204</span> * is transient and less risky to repair.<a name="line.204"></a>
-<span class="sourceLineNo">205</span> * &lt;p&gt;<a name="line.205"></a>
-<span class="sourceLineNo">206</span> * If hbck is run from the command line, there are a handful of arguments that<a name="line.206"></a>
-<span class="sourceLineNo">207</span> * can be used to limit the kinds of repairs hbck will do.  See the code in<a name="line.207"></a>
-<span class="sourceLineNo">208</span> * {@link #printUsageAndExit()} for more details.<a name="line.208"></a>
-<span class="sourceLineNo">209</span> */<a name="line.209"></a>
-<span class="sourceLineNo">210</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)<a name="line.210"></a>
-<span class="sourceLineNo">211</span>@InterfaceStability.Evolving<a name="line.211"></a>
-<span class="sourceLineNo">212</span>public class HBaseFsck extends Configured implements Closeable {<a name="line.212"></a>
-<span class="sourceLineNo">213</span>  public static final long DEFAULT_TIME_LAG = 60000; // default value of 1 minute<a name="line.213"></a>
-<span class="sourceLineNo">214</span>  public static final long DEFAULT_SLEEP_BEFORE_RERUN = 10000;<a name="line.214"></a>
-<span class="sourceLineNo">215</span>  private static final int MAX_NUM_THREADS = 50; // #threads to contact regions<a name="line.215"></a>
-<span class="sourceLineNo">216</span>  private static boolean rsSupportsOffline = true;<a name="line.216"></a>
-<span class="sourceLineNo">217</span>  private static final int DEFAULT_OVERLAPS_TO_SIDELINE = 2;<a name="line.217"></a>
-<span class="sourceLineNo">218</span>  private static final int DEFAULT_MAX_MERGE = 5;<a name="line.218"></a>
-<span class="sourceLineNo">219</span>  private static final String TO_BE_LOADED = "to_be_loaded";<a name="line.219"></a>
-<span class="sourceLineNo">220</span>  private static final String HBCK_LOCK_FILE = "hbase-hbck.lock";<a name="line.220"></a>
-<span class="sourceLineNo">221</span>  private static final int DEFAULT_MAX_LOCK_FILE_ATTEMPTS = 5;<a name="line.221"></a>
-<span class="sourceLineNo">222</span>  private static final int DEFAULT_LOCK_FILE_ATTEMPT_SLEEP_INTERVAL = 200; // milliseconds<a name="line.222"></a>
-<span class="sourceLineNo">223</span>  private static final int DEFAULT_LOCK_FILE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.223"></a>
-<span class="sourceLineNo">224</span>  // We have to set the timeout value &gt; HdfsConstants.LEASE_SOFTLIMIT_PERIOD.<a name="line.224"></a>
-<span class="sourceLineNo">225</span>  // In HADOOP-2.6 and later, the Namenode proxy now created with custom RetryPolicy for<a name="line.225"></a>
-<span class="sourceLineNo">226</span>  // AlreadyBeingCreatedException which is implies timeout on this operations up to<a name="line.226"></a>
-<span class="sourceLineNo">227</span>  // HdfsConstants.LEASE_SOFTLIMIT_PERIOD (60 seconds).<a name="line.227"></a>
-<span class="sourceLineNo">228</span>  private static final int DEFAULT_WAIT_FOR_LOCK_TIMEOUT = 80; // seconds<a name="line.228"></a>
-<span class="sourceLineNo">229</span>  private static final int DEFAULT_MAX_CREATE_ZNODE_ATTEMPTS = 5;<a name="line.229"></a>
-<span class="sourceLineNo">230</span>  private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_SLEEP_INTERVAL = 200; // milliseconds<a name="line.230"></a>
-<span class="sourceLineNo">231</span>  private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.231"></a>
-<span class="sourceLineNo">232</span><a name="line.232"></a>
-<span class="sourceLineNo">233</span>  /**********************<a name="line.233"></a>
-<span class="sourceLineNo">234</span>   * Internal resources<a name="line.234"></a>
-<span class="sourceLineNo">235</span>   **********************/<a name="line.235"></a>
-<span class="sourceLineNo">236</span>  private static final Logger LOG = LoggerFactory.getLogger(HBaseFsck.class.getName());<a name="line.236"></a>
-<span class="sourceLineNo">237</span>  private ClusterMetrics status;<a name="line.237"></a>
-<span class="sourceLineNo">238</span>  private ClusterConnection connection;<a name="line.238"></a>
-<span class="sourceLineNo">239</span>  private Admin admin;<a name="line.239"></a>
-<span class="sourceLineNo">240</span>  private Table meta;<a name="line.240"></a>
-<span class="sourceLineNo">241</span>  // threads to do ||izable tasks: retrieve data from regionservers, handle overlapping regions<a name="line.241"></a>
-<span class="sourceLineNo">242</span>  protected ExecutorService executor;<a name="line.242"></a>
-<span class="sourceLineNo">243</span>  private long startMillis = EnvironmentEdgeManager.currentTime();<a name="line.243"></a>
-<span class="sourceLineNo">244</span>  private HFileCorruptionChecker hfcc;<a name="line.244"></a>
-<span class="sourceLineNo">245</span>  private int retcode = 0;<a name="line.245"></a>
-<span class="sourceLineNo">246</span>  private Path HBCK_LOCK_PATH;<a name="line.246"></a>
-<span class="sourceLineNo">247</span>  private FSDataOutputStream hbckOutFd;<a name="line.247"></a>
-<span class="sourceLineNo">248</span>  // This lock is to prevent cleanup of balancer resources twice between<a name="line.248"></a>
-<span class="sourceLineNo">249</span>  // ShutdownHook and the main code. We cleanup only if the connect() is<a name="line.249"></a>
-<span class="sourceLineNo">250</span>  // successful<a name="line.250"></a>
-<span class="sourceLineNo">251</span>  private final AtomicBoolean hbckLockCleanup = new AtomicBoolean(false);<a name="line.251"></a>
-<span class="sourceLineNo">252</span><a name="line.252"></a>
-<span class="sourceLineNo">253</span>  // Unsupported options in HBase 2.0+<a name="line.253"></a>
-<span class="sourceLineNo">254</span>  private static final Set&lt;String&gt; unsupportedOptionsInV2 = Sets.newHashSet("-fix",<a name="line.254"></a>
-<span class="sourceLineNo">255</span>      "-fixAssignments", "-fixMeta", "-fixHdfsHoles", "-fixHdfsOrphans", "-fixTableOrphans",<a name="line.255"></a>
-<span class="sourceLineNo">256</span>      "-fixHdfsOverlaps", "-sidelineBigOverlaps", "-fixSplitParents", "-removeParents",<a name="line.256"></a>
-<span class="sourceLineNo">257</span>      "-fixEmptyMetaCells", "-repair", "-repairHoles", "-maxOverlapsToSideline", "-maxMerge");<a name="line.257"></a>
-<span class="sourceLineNo">258</span><a name="line.258"></a>
-<span class="sourceLineNo">259</span>  /***********<a name="line.259"></a>
-<span class="sourceLineNo">260</span>   * Options<a name="line.260"></a>
-<span class="sourceLineNo">261</span>   ***********/<a name="line.261"></a>
-<span class="sourceLineNo">262</span>  private static boolean details = false; // do we display the full report<a name="line.262"></a>
-<span class="sourceLineNo">263</span>  private long timelag = DEFAULT_TIME_LAG; // tables whose modtime is older<a name="line.263"></a>
-<span class="sourceLineNo">264</span>  private static boolean forceExclusive = false; // only this hbck can modify HBase<a name="line.264"></a>
-<span class="sourceLineNo">265</span>  private boolean fixAssignments = false; // fix assignment errors?<a name="line.265"></a>
-<span class="sourceLineNo">266</span>  private boolean fixMeta = false; // fix meta errors?<a name="line.266"></a>
-<span class="sourceLineNo">267</span>  private boolean checkHdfs = true; // load and check fs consistency?<a name="line.267"></a>
-<span class="sourceLineNo">268</span>  private boolean fixHdfsHoles = false; // fix fs holes?<a name="line.268"></a>
-<span class="sourceLineNo">269</span>  private boolean fixHdfsOverlaps = false; // fix fs overlaps (risky)<a name="line.269"></a>
-<span class="sourceLineNo">270</span>  private boolean fixHdfsOrphans = false; // fix fs holes (missing .regioninfo)<a name="line.270"></a>
-<span class="sourceLineNo">271</span>  private boolean fixTableOrphans = false; // fix fs holes (missing .tableinfo)<a name="line.271"></a>
-<span class="sourceLineNo">272</span>  private boolean fixVersionFile = false; // fix missing hbase.version file in hdfs<a name="line.272"></a>
-<span class="sourceLineNo">273</span>  private boolean fixSplitParents = false; // fix lingering split parents<a name="line.273"></a>
-<span class="sourceLineNo">274</span>  private boolean removeParents = false; // remove split parents<a name="line.274"></a>
-<span class="sourceLineNo">275</span>  private boolean fixReferenceFiles = false; // fix lingering reference store file<a name="line.275"></a>
-<span class="sourceLineNo">276</span>  private boolean fixHFileLinks = false; // fix lingering HFileLinks<a name="line.276"></a>
-<span class="sourceLineNo">277</span>  private boolean fixEmptyMetaCells = false; // fix (remove) empty REGIONINFO_QUALIFIER rows<a name="line.277"></a>
-<span class="sourceLineNo">278</span>  private boolean fixReplication = false; // fix undeleted replication queues for removed peer<a name="line.278"></a>
-<span class="sourceLineNo">279</span>  private boolean cleanReplicationBarrier = false; // clean replication barriers of a table<a name="line.279"></a>
-<span class="sourceLineNo">280</span>  private boolean fixAny = false; // Set to true if any of the fix is required.<a name="line.280"></a>
-<span class="sourceLineNo">281</span><a name="line.281"></a>
-<span class="sourceLineNo">282</span>  // limit checking/fixes to listed tables, if empty attempt to check/fix all<a name="line.282"></a>
-<span class="sourceLineNo">283</span>  // hbase:meta are always checked<a name="line.283"></a>
-<span class="sourceLineNo">284</span>  private Set&lt;TableName&gt; tablesIncluded = new HashSet&lt;&gt;();<a name="line.284"></a>
-<span class="sourceLineNo">285</span>  private TableName cleanReplicationBarrierTable;<a name="line.285"></a>
-<span class="sourceLineNo">286</span>  private int maxMerge = DEFAULT_MAX_MERGE; // maximum number of overlapping regions to merge<a name="line.286"></a>
-<span class="sourceLineNo">287</span>  // maximum number of overlapping regions to sideline<a name="line.287"></a>
-<span class="sourceLineNo">288</span>  private int maxOverlapsToSideline = DEFAULT_OVERLAPS_TO_SIDELINE;<a name="line.288"></a>
-<span class="sourceLineNo">289</span>  private boolean sidelineBigOverlaps = false; // sideline overlaps with &gt;maxMerge regions<a name="line.289"></a>
-<span class="sourceLineNo">290</span>  private Path sidelineDir = null;<a name="line.290"></a>
-<span class="sourceLineNo">291</span><a name="line.291"></a>
-<span class="sourceLineNo">292</span>  private boolean rerun = false; // if we tried to fix something, rerun hbck<a name="line.292"></a>
-<span class="sourceLineNo">293</span>  private static boolean summary = false; // if we want to print less output<a name="line.293"></a>
-<span class="sourceLineNo">294</span>  private boolean checkMetaOnly = false;<a name="line.294"></a>
-<span class="sourceLineNo">295</span>  private boolean checkRegionBoundaries = false;<a name="line.295"></a>
-<span class="sourceLineNo">296</span>  private boolean ignorePreCheckPermission = false; // if pre-check permission<a name="line.296"></a>
-<span class="sourceLineNo">297</span><a name="line.297"></a>
-<span class="sourceLineNo">298</span>  /*********<a name="line.298"></a>
-<span class="sourceLineNo">299</span>   * State<a name="line.299"></a>
-<span class="sourceLineNo">300</span>   *********/<a name="line.300"></a>
-<span class="sourceLineNo">301</span>  final private ErrorReporter errors;<a name="line.301"></a>
-<span class="sourceLineNo">302</span>  int fixes = 0;<a name="line.302"></a>
-<span class="sourceLineNo">303</span><a name="line.303"></a>
-<span class="sourceLineNo">304</span>  /**<a name="line.304"></a>
-<span class="sourceLineNo">305</span>   * This map contains the state of all hbck items.  It maps from encoded region<a name="line.305"></a>
-<span class="sourceLineNo">306</span>   * name to HbckInfo structure.  The information contained in HbckInfo is used<a name="line.306"></a>
-<span class="sourceLineNo">307</span>   * to detect and correct consistency (hdfs/meta/deployment) problems.<a name="line.307"></a>
-<span class="sourceLineNo">308</span>   */<a name="line.308"></a>
-<span class="sourceLineNo">309</span>  private TreeMap&lt;String, HbckInfo&gt; regionInfoMap = new TreeMap&lt;&gt;();<a name="line.309"></a>
-<span class="sourceLineNo">310</span>  // Empty regioninfo qualifiers in hbase:meta<a name="line.310"></a>
-<span class="sourceLineNo">311</span>  private Set&lt;Result&gt; emptyRegionInfoQualifiers = new HashSet&lt;&gt;();<a name="line.311"></a>
+<span class="sourceLineNo">173</span> * Region consistency checks verify that hbase:meta, region deployment on region<a name="line.173"></a>
+<span class="sourceLineNo">174</span> * servers and the state of data in HDFS (.regioninfo files) all are in<a name="line.174"></a>
+<span class="sourceLineNo">175</span> * accordance.<a name="line.175"></a>
+<span class="sourceLineNo">176</span> * &lt;p&gt;<a name="line.176"></a>
+<span class="sourceLineNo">177</span> * Table integrity checks verify that all possible row keys resolve to exactly<a name="line.177"></a>
+<span class="sourceLineNo">178</span> * one region of a table.  This means there are no individual degenerate<a name="line.178"></a>
+<span class="sourceLineNo">179</span> * or backwards regions; no holes between regions; and that there are no<a name="line.179"></a>
+<span class="sourceLineNo">180</span> * overlapping regions.<a name="line.180"></a>
+<span class="sourceLineNo">181</span> * &lt;p&gt;<a name="line.181"></a>
+<span class="sourceLineNo">182</span> * The general repair strategy works in two phases:<a name="line.182"></a>
+<span class="sourceLineNo">183</span> * &lt;ol&gt;<a name="line.183"></a>
+<span class="sourceLineNo">184</span> * &lt;li&gt; Repair Table Integrity on HDFS. (merge or fabricate regions)<a name="line.184"></a>
+<span class="sourceLineNo">185</span> * &lt;li&gt; Repair Region Consistency with hbase:meta and assignments<a name="line.185"></a>
+<span class="sourceLineNo">186</span> * &lt;/ol&gt;<a name="line.186"></a>
+<span class="sourceLineNo">187</span> * &lt;p&gt;<a name="line.187"></a>
+<span class="sourceLineNo">188</span> * For table integrity repairs, the tables' region directories are scanned<a name="line.188"></a>
+<span class="sourceLineNo">189</span> * for .regioninfo files.  Each table's integrity is then verified.  If there<a name="line.189"></a>
+<span class="sourceLineNo">190</span> * are any orphan regions (regions with no .regioninfo files) or holes, new<a name="line.190"></a>
+<span class="sourceLineNo">191</span> * regions are fabricated.  Backwards regions are sidelined as well as empty<a name="line.191"></a>
+<span class="sourceLineNo">192</span> * degenerate (endkey==startkey) regions.  If there are any overlapping regions,<a name="line.192"></a>
+<span class="sourceLineNo">193</span> * a new region is created and all data is merged into the new region.<a name="line.193"></a>
+<span class="sourceLineNo">194</span> * &lt;p&gt;<a name="line.194"></a>
+<span class="sourceLineNo">195</span> * Table integrity repairs deal solely with HDFS and could potentially be done<a name="line.195"></a>
+<span class="sourceLineNo">196</span> * offline -- the hbase region servers or master do not need to be running.<a name="line.196"></a>
+<span class="sourceLineNo">197</span> * This phase can eventually be used to completely reconstruct the hbase:meta table in<a name="line.197"></a>
+<span class="sourceLineNo">198</span> * an offline fashion.<a name="line.198"></a>
+<span class="sourceLineNo">199</span> * &lt;p&gt;<a name="line.199"></a>
+<span class="sourceLineNo">200</span> * Region consistency requires three conditions -- 1) valid .regioninfo file<a name="line.200"></a>
+<span class="sourceLineNo">201</span> * present in an HDFS region dir,  2) valid row with .regioninfo data in META,<a name="line.201"></a>
+<span class="sourceLineNo">202</span> * and 3) a region is deployed only at the regionserver that was assigned to<a name="line.202"></a>
+<span class="sourceLineNo">203</span> * with proper state in the master.<a name="line.203"></a>
+<span class="sourceLineNo">204</span> * &lt;p&gt;<a name="line.204"></a>
+<span class="sourceLineNo">205</span> * Region consistency repairs require hbase to be online so that hbck can<a name="line.205"></a>
+<span class="sourceLineNo">206</span> * contact the HBase master and region servers.  The hbck#connect() method must<a name="line.206"></a>
+<span class="sourceLineNo">207</span> * first be called successfully.  Much of the region consistency information<a name="line.207"></a>
+<span class="sourceLineNo">208</span> * is transient and less risky to repair.<a name="line.208"></a>
+<span class="sourceLineNo">209</span> * &lt;p&gt;<a name="line.209"></a>
+<span class="sourceLineNo">210</span> * If hbck is run from the command line, there are a handful of arguments that<a name="line.210"></a>
+<span class="sourceLineNo">211</span> * can be used to limit the kinds of repairs hbck will do.  See the code in<a name="line.211"></a>
+<span class="sourceLineNo">212</span> * {@link #printUsageAndExit()} for more details.<a name="line.212"></a>
+<span class="sourceLineNo">213</span> */<a name="line.213"></a>
+<span class="sourceLineNo">214</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)<a name="line.214"></a>
+<span class="sourceLineNo">215</span>@InterfaceStability.Evolving<a name="line.215"></a>
+<span class="sourceLineNo">216</span>public class HBaseFsck extends Configured implements Closeable {<a name="line.216"></a>
+<span class="sourceLineNo">217</span>  public static final long DEFAULT_TIME_LAG = 60000; // default value of 1 minute<a name="line.217"></a>
+<span class="sourceLineNo">218</span>  public static final long DEFAULT_SLEEP_BEFORE_RERUN = 10000;<a name="line.218"></a>
+<span class="sourceLineNo">219</span>  private static final int MAX_NUM_THREADS = 50; // #threads to contact regions<a name="line.219"></a>
+<span class="sourceLineNo">220</span>  private static boolean rsSupportsOffline = true;<a name="line.220"></a>
+<span class="sourceLineNo">221</span>  private static final int DEFAULT_OVERLAPS_TO_SIDELINE = 2;<a name="line.221"></a>
+<span class="sourceLineNo">222</span>  private static final int DEFAULT_MAX_MERGE = 5;<a name="line.222"></a>
+<span class="sourceLineNo">223</span>  private static final String TO_BE_LOADED = "to_be_loaded";<a name="line.223"></a>
+<span class="sourceLineNo">224</span>  /**<a name="line.224"></a>
+<span class="sourceLineNo">225</span>   * Here is where hbase-1.x used to default the lock for hbck1.<a name="line.225"></a>
+<span class="sourceLineNo">226</span>   * It puts in place a lock when it goes to write/make changes.<a name="line.226"></a>
+<span class="sourceLineNo">227</span>   */<a name="line.227"></a>
+<span class="sourceLineNo">228</span>  @VisibleForTesting<a name="line.228"></a>
+<span class="sourceLineNo">229</span>  public static final String HBCK_LOCK_FILE = "hbase-hbck.lock";<a name="line.229"></a>
+<span class="sourceLineNo">230</span>  private static final int DEFAULT_MAX_LOCK_FILE_ATTEMPTS = 5;<a name="line.230"></a>
+<span class="sourceLineNo">231</span>  private static final int DEFAULT_LOCK_FILE_ATTEMPT_SLEEP_INTERVAL = 200; // milliseconds<a name="line.231"></a>
+<span class="sourceLineNo">232</span>  private static final int DEFAULT_LOCK_FILE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.232"></a>
+<span class="sourceLineNo">233</span>  // We have to set the timeout value &gt; HdfsConstants.LEASE_SOFTLIMIT_PERIOD.<a name="line.233"></a>
+<span class="sourceLineNo">234</span>  // In HADOOP-2.6 and later, the Namenode proxy now created with custom RetryPolicy for<a name="line.234"></a>
+<span class="sourceLineNo">235</span>  // AlreadyBeingCreatedException which is implies timeout on this operations up to<a name="line.235"></a>
+<span class="sourceLineNo">236</span>  // HdfsConstants.LEASE_SOFTLIMIT_PERIOD (60 seconds).<a name="line.236"></a>
+<span class="sourceLineNo">237</span>  private static final int DEFAULT_WAIT_FOR_LOCK_TIMEOUT = 80; // seconds<a name="line.237"></a>
+<span class="sourceLineNo">238</span>  private static final int DEFAULT_MAX_CREATE_ZNODE_ATTEMPTS = 5;<a name="line.238"></a>
+<span class="sourceLineNo">239</span>  private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_SLEEP_INTERVAL = 200; // milliseconds<a name="line.239"></a>
+<span class="sourceLineNo">240</span>  private static final int DEFAULT_CREATE_ZNODE_ATTEMPT_MAX_SLEEP_TIME = 5000; // milliseconds<a name="line.240"></a>
+<span class="sourceLineNo">241</span><a name="line.241"></a>
+<span class="sourceLineNo">242</span>  /**********************<a name="line.242"></a>
+<span class="sourceLineNo">243</span>   * Internal resources<a name="line.243"></a>
+<span class="sourceLineNo">244</span>   **********************/<a name="line.244"></a>
+<span class="sourceLineNo">245</span>  private static final Logger LOG = LoggerFactory.getLogger(HBaseFsck.class.getName());<a name="line.245"></a>
+<span class="sourceLineNo">246</span>  private ClusterMetrics status;<a name="line.246"></a>
+<span class="sourceLineNo">247</span>  private ClusterConnection connection;<a name="line.247"></a>
+<span class="sourceLineNo">248</span>  private Admin admin;<a name="line.248"></a>
+<span class="sourceLineNo">249</span>  private Table meta;<a name="line.249"></a>
+<span class="sourceLineNo">250</span>  // threads to do ||izable tasks: retrieve data from regionservers, handle overlapping regions<a name="line.250"></a>
+<span class="sourceLineNo">251</span>  protected ExecutorService executor;<a name="line.251"></a>
+<span class="sourceLineNo">252</span>  private long startMillis = EnvironmentEdgeManager.currentTime();<a name="line.252"></a>
+<span class="sourceLineNo">253</span>  private HFileCorruptionChecker hfcc;<a name="line.253"></a>
+<span class="sourceLineNo">254</span>  private int retcode = 0;<a name="line.254"></a>
+<span class="sourceLineNo">255</span>  private Path HBCK_LOCK_PATH;<a name="line.255"></a>
+<span class="sourceLineNo">256</span>  private FSDataOutputStream hbckOutFd;<a name="line.256"></a>
+<span class="sourceLineNo">257</span>  // This lock is to prevent cleanup of balancer resources twice between<a name="line.257"></a>
+<span class="sourceLineNo">258</span>  // ShutdownHook and the main code. We cleanup only if the connect() is<a name="line.258"></a>
+<span class="sourceLineNo">259</span>  // successful<a name="line.259"></a>
+<span class="sourceLineNo">260</span>  private final AtomicBoolean hbckLockCleanup = new AtomicBoolean(false);<a name="line.260"></a>
+<span class="sourceLineNo">261</span><a name="line.261"></a>
+<span class="sourceLineNo">262</span>  // Unsupported options in HBase 2.0+<a name="line.262"></a>
+<span class="sourceLineNo">263</span>  private static final Set&lt;String&gt; unsupportedOptionsInV2 = Sets.newHashSet("-fix",<a name="line.263"></a>
+<span class="sourceLineNo">264</span>      "-fixAssignments", "-fixMeta", "-fixHdfsHoles", "-fixHdfsOrphans", "-fixTableOrphans",<a name="line.264"></a>
+<span class="sourceLineNo">265</span>      "-fixHdfsOverlaps", "-sidelineBigOverlaps", "-fixSplitParents", "-removeParents",<a name="line.265"></a>
+<span class="sourceLineNo">266</span>      "-fixEmptyMetaCells", "-repair", "-repairHoles", "-maxOverlapsToSideline", "-maxMerge");<a name="line.266"></a>
+<span class="sourceLineNo">267</span><a name="line.267"></a>
+<span class="sourceLineNo">268</span>  /***********<a name="line.268"></a>
+<span class="sourceLineNo">269</span>   * Options<a name="line.269"></a>
+<span class="sourceLineNo">270</span>   ***********/<a name="line.270"></a>
+<span class="sourceLineNo">271</span>  private static boolean details = false; // do we display the full report<a name="line.271"></a>
+<span class="sourceLineNo">272</span>  private long timelag = DEFAULT_TIME_LAG; // tables whose modtime is older<a name="line.272"></a>
+<span class="sourceLineNo">273</span>  private static boolean forceExclusive = false; // only this hbck can modify HBase<a name="line.273"></a>
+<span class="sourceLineNo">274</span>  private boolean fixAssignments = false; // fix assignment errors?<a name="line.274"></a>
+<span class="sourceLineNo">275</span>  private boolean fixMeta = false; // fix meta errors?<a name="line.275"></a>
+<span class="sourceLineNo">276</span>  private boolean checkHdfs = true; // load and check fs consistency?<a name="line.276"></a>
+<span class="sourceLineNo">277</span>  private boolean fixHdfsHoles = false; // fix fs holes?<a name="line.277"></a>
+<span class="sourceLineNo">278</span>  private boolean fixHdfsOverlaps = false; // fix fs overlaps (risky)<a name="line.278"></a>
+<span class="sourceLineNo">279</span>  private boolean fixHdfsOrphans = false; // fix fs holes (missing .regioninfo)<a name="line.279"></a>
+<span class="sourceLineNo">280</span>  private boolean fixTableOrphans = false; // fix fs holes (missing .tableinfo)<a name="line.280"></a>
+<span class="sourceLineNo">281</span>  private boolean fixVersionFile = false; // fix missing hbase.version file in hdfs<a name="line.281"></a>
+<span class="sourceLineNo">282</span>  private boolean fixSplitParents = false; // fix lingering split parents<a name="line.282"></a>
+<span class="sourceLineNo">283</span>  private boolean removeParents = false; // remove split parents<a name="line.283"></a>
+<span class="sourceLineNo">284</span>  private boolean fixReferenceFiles = false; // fix lingering reference store file<a name="line.284"></a>
+<span class="sourceLineNo">285</span>  private boolean fixHFileLinks = false; // fix lingering HFileLinks<a name="line.285"></a>
+<span class="sourceLineNo">286</span>  private boolean fixEmptyMetaCells = false; // fix (remove) empty REGIONINFO_QUALIFIER rows<a name="line.286"></a>
+<span class="sourceLineNo">287</span>  private boolean fixReplication = false; // fix undeleted replication queues for removed peer<a name="line.287"></a>
+<span class="sourceLineNo">288</span>  private boolean cleanReplicationBarrier = false; // clean replication barriers of a table<a name="line.288"></a>
+<span class="sourceLineNo">289</span>  private boolean fixAny = false; // Set to true if any of the fix is required.<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
+<span class="sourceLineNo">291</span>  // limit checking/fixes to listed tables, if empty attempt to check/fix all<a name="line.291"></a>
+<span class="sourceLineNo">292</span>  // hbase:meta are always checked<a name="line.292"></a>
+<span class="sourceLineNo">293</span>  private Set&lt;TableName&gt; tablesIncluded = new HashSet&lt;&gt;();<a name="line.293"></a>
+<span class="sourceLineNo">294</span>  private TableName cleanReplicationBarrierTable;<a name="line.294"></a>
+<span class="sourceLineNo">295</span>  private int maxMerge = DEFAULT_MAX_MERGE; // maximum number of overlapping regions to merge<a name="line.295"></a>
+<span class="sourceLineNo">296</span>  // maximum number of overlapping regions to sideline<a name="line.296"></a>
+<span class="sourceLineNo">297</span>  private int maxOverlapsToSideline = DEFAULT_OVERLAPS_TO_SIDELINE;<a name="line.297"></a>
+<span class="sourceLineNo">298</span>  private boolean sidelineBigOverlaps = false; // sideline overlaps with &gt;maxMerge regions<a name="line.298"></a>
+<span class="sourceLineNo">299</span>  private Path sidelineDir = null;<a name="line.299"></a>
+<span class="sourceLineNo">300</span><a name="line.300"></a>
+<span class="sourceLineNo">301</span>  private boolean rerun = false; // if we tried to fix something, rerun hbck<a name="line.301"></a>
+<span class="sourceLineNo">302</span>  private static boolean summary = false; // if we want to print less output<a name="line.302"></a>
+<span class="sourceLineNo">303</span>  private boolean checkMetaOnly = false;<a name="line.303"></a>
+<span class="sourceLineNo">304</span>  private boolean checkRegionBoundaries = false;<a name="line.304"></a>
+<span class="sourceLineNo">305</span>  private boolean ignorePreCheckPermission = false; // if pre-check permission<a name="line.305"></a>
+<span class="sourceLineNo">306</span><a name="line.306"></a>
+<span class="sourceLineNo">307</span>  /*********<a name="line.307"></a>
+<span class="sourceLineNo">308</span>   * State<a name="line.308"></a>
+<span class="sourceLineNo">309</span>   *********/<a name="line.309"></a>
+<span class="sourceLineNo">310</span>  final private ErrorReporter errors;<a name="line.310"></a>
+<span class="sourceLineNo">311</span>  int fixes = 0;<a name="line.311"></a>
 <span class="sourceLineNo">312</span><a name="line.312"></a>
 <span class="sourceLineNo">313</span>  /**<a name="line.313"></a>
-<span class="sourceLineNo">314</span>   * This map from Tablename -&gt; TableInfo contains the structures necessary to<a name="line.314"></a>
-<span class="sourceLineNo">315</span>   * detect table consistency problems (holes, dupes, overlaps).  It is sorted<a name="line.315"></a>
-<span class="sourceLineNo">316</span>   * to prevent dupes.<a name="line.316"></a>
-<span class="sourceLineNo">317</span>   *<a name="line.317"></a>
-<span class="sourceLineNo">318</span>   * If tablesIncluded is empty, this map contains all tables.<a name="line.318"></a>
-<span class="sourceLineNo">319</span>   * Otherwise, it contains only meta tables and tables in tablesIncluded,<a name="line.319"></a>
-<span class="sourceLineNo">320</span>   * unless checkMetaOnly is specified, in which case, it contains only<a name="line.320"></a>
-<span class="sourceLineNo">321</span>   * the meta table<a name="line.321"></a>
-<span class="sourceLineNo">322</span>   */<a name="line.322"></a>
-<span class="sourceLineNo">323</span>  private SortedMap&lt;TableName, TableInfo&gt; tablesInfo = new ConcurrentSkipListMap&lt;&gt;();<a name="line.323"></a>
-<span class="sourceLineNo">324</span><a name="line.324"></a>
-<span class="sourceLineNo">325</span>  /**<a name="line.325"></a>
-<span class="sourceLineNo">326</span>   * When initially looking at HDFS, we attempt to find any orphaned data.<a name="line.326"></a>
-<span class="sourceLineNo">327</span>   */<a name="line.327"></a>
-<span class="sourceLineNo">328</span>  private List&lt;HbckInfo&gt; orphanHdfsDirs = Collections.synchronizedList(new ArrayList&lt;HbckInfo&gt;());<a name="line.328"></a>
-<span class="sourceLineNo">329</span><a name="line.329"></a>
-<span class="sourceLineNo">330</span>  private Map&lt;TableName, Set&lt;String&gt;&gt; orphanTableDirs = new HashMap&lt;&gt;();<a name="line.330"></a>
-<span class="sourceLineNo">331</span>  private Map&lt;TableName, TableState&gt; tableStates = new HashMap&lt;&gt;();<a name="line.331"></a>
-<span class="sourceLineNo">332</span>  private final RetryCounterFactory lockFileRetryCounterFactory;<a name="line.332"></a>
-<span class="sourceLineNo">333</span>  private final RetryCounterFactory createZNodeRetryCounterFactory;<a name="line.333"></a>
-<span class="sourceLineNo">334</span><a name="line.334"></a>
-<span class="sourceLineNo">335</span>  private Map&lt;TableName, Set&lt;String&gt;&gt; skippedRegions = new HashMap&lt;&gt;();<a name="line.335"></a>
-<span class="sourceLineNo">336</span><a name="line.336"></a>
-<span class="sourceLineNo">337</span>  private ZKWatcher zkw = null;<a name="line.337"></a>
-<span class="sourceLineNo">338</span>  private String hbckEphemeralNodePath = null;<a name="line.338"></a>
-<span class="sourceLineNo">339</span>  private boolean hbckZodeCreated = false;<a name="line.339"></a>
-<span class="sourceLineNo">340</span><a name="line.340"></a>
-<span class="sourceLineNo">341</span>  /**<a name="line.341"></a>
-<span class="sourceLineNo">342</span>   * Constructor<a name="line.342"></a>
-<span class="sourceLineNo">343</span>   *<a name="line.343"></a>
-<span class="sourceLineNo">344</span>   * @param conf Configuration object<a name="line.344"></a>
-<span class="sourceLineNo">345</span>   * @throws MasterNotRunningException if the master is not running<a name="line.345"></a>
-<span class="sourceLineNo">346</span>   * @throws ZooKeeperConnectionException if unable to connect to ZooKeeper<a name="line.346"></a>
-<span class="sourceLineNo">347</span>   */<a name="line.347"></a>
-<span class="sourceLineNo">348</span>  public HBaseFsck(Configuration conf) throws IOException, ClassNotFoundException {<a name="line.348"></a>
-<span class="sourceLineNo">349</span>    this(conf, createThreadPool(conf));<a name="line.349"></a>
-<span class="sourceLineNo">350</span>  }<a name="line.350"></a>
-<span class="sourceLineNo">351</span><a name="line.351"></a>
-<span class="sourceLineNo">352</span>  private static ExecutorService createThreadPool(Configuration conf) {<a name="line.352"></a>
-<span class="sourceLineNo">353</span>    int numThreads = conf.getInt("hbasefsck.numthreads", MAX_NUM_THREADS);<a name="line.353"></a>
-<span class="sourceLineNo">354</span>    return new ScheduledThreadPoolExecutor(numThreads, Threads.newDaemonThreadFactory("hbasefsck"));<a name="line.354"></a>
-<span class="sourceLineNo">355</span>  }<a name="line.355"></a>
-<span class="sourceLineNo">356</span><a name="line.356"></a>
-<span class="sourceLineNo">357</span>  /**<a name="line.357"></a>
-<span class="sourceLineNo">358</span>   * Constructor<a name="line.358"></a>
-<span class="sourceLineNo">359</span>   *<a name="line.359"></a>
-<span class="sourceLineNo">360</span>   * @param conf<a name="line.360"></a>
-<span class="sourceLineNo">361</span>   *          Configuration object<a name="line.361"></a>
-<span class="sourceLineNo">362</span>   * @throws MasterNotRunningException<a name="line.362"></a>
-<span class="sourceLineNo">363</span>   *           if the master is not running<a name="line.363"></a>
-<span class="sourceLineNo">364</span>   * @throws ZooKeeperConnectionException<a name="line.364"></a>
-<span class="sourceLineNo">365</span>   *           if unable to connect to ZooKeeper<a name="line.365"></a>
-<span class="sourceLineNo">366</span>   */<a name="line.366"></a>
-<span class="sourceLineNo">367</span>  public HBaseFsck(Configuration conf, ExecutorService exec) throws MasterNotRunningException,<a name="line.367"></a>
-<span class="sourceLineNo">368</span>      ZooKeeperConnectionException, IOException, ClassNotFoundException {<a name="line.368"></a>
-<span class="sourceLineNo">369</span>    super(conf);<a name="line.369"></a>
-<span class="sourceLineNo">370</span>    errors = getErrorReporter(getConf());<a name="line.370"></a>
-<span class="sourceLineNo">371</span>    this.executor = exec;<a name="line.371"></a>
-<span class="sourceLineNo">372</span>    lockFileRetryCounterFactory = new RetryCounterFactory(<a name="line.372"></a>
-<span class="sourceLineNo">373</span>      getConf().getInt("hbase.hbck.lockfile.attempts", DEFAULT_MAX_LOCK_FILE_ATTEMPTS),<a name="line.373"></a>
-<span class="sourceLineNo">374</span>      getConf().getInt(<a name="line.374"></a>
-<span class="sourceLineNo">375</span>        "hbase.hbck.lockfile.attempt.sleep.interval", DEFAULT_LOCK_FILE_ATTEMPT_SLEEP_INTERVAL),<a name="line.375"></a>
-<span class="sourceLineNo">376</span>      getConf().getInt(<a name="line.376"></a>
-<span class="sourceLineNo">377</span>        "hbase.hbck.lockfile.attempt.maxsleeptime", DEFAULT_LOCK_FILE_ATTEMPT_MAX_SLEEP_TIME));<a name="line.377"></a>
-<span class="sourceLineNo">378</span>    createZNodeRetryCounterFactory = new RetryCounterFactory(<a name="line.378"></a>
-<span class="sourceLineNo">379</span>      getConf().getInt("hbase.hbck.createznode.attempts", DEFAULT_MAX_CREATE_ZNODE_ATTEMPTS),<a name="line.379"></a>
-<span class="sourceLineNo">380</span>      getConf().getInt(<a name="line.380"></a>
-<span class="sourceLineNo">381</span>        "hbase.hbck.createznode.attempt.sleep.interval",<a name="line.381"></a>
-<span class="sourceLineNo">382</span>        DEFAULT_CREATE_ZNODE_ATTEMPT_SLEEP_INTERVAL),<a name="line.382"></a>
-<span class="sourceLineNo">383</span>      getConf().getInt(<a name="line.383"></a>
-<span class="sourceLineNo">384</span>        "hbase.hbck.createznode.attempt.maxsleeptime",<a name="line.384"></a>
-<span class="sourceLineNo">385</span>        DEFAULT_CREATE_ZNODE_ATTEMPT_MAX_SLEEP_TIME));<a name="line.385"></a>
-<span class="sourceLineNo">386</span>    zkw = createZooKeeperWatcher();<a name="line.386"></a>
-<span class="sourceLineNo">387</span>  }<a name="line.387"></a>
-<span class="sourceLineNo">388</span><a name="line.388"></a>
-<span class="sourceLineNo">389</span>  private class FileLockCallable implements Callable&lt;FSDataOutputStream&gt; {<a name="line.389"></a>
-<span class="sourceLineNo">390</span>    RetryCounter retryCounter;<a name="line.390"></a>
-<span class="sourceLineNo">391</span><a name="line.391"></a>
-<span class="sourceLineNo">392</span>    public FileLockCallable(RetryCounter retryCounter) {<a name="line.392"></a>
-<span class="sourceLineNo">393</span>      this.retryCounter = retryCounter;<a name="line.393"></a>
-<span class="sourceLineNo">394</span>    }<a name="line.394"></a>
-<span class="sourceLineNo">395</span>    @Override<a name="line.395"></a>
-<span class="sourceLineNo">396</span>    public FSDataOutputStream call() throws IOException {<a name="line.396"></a>
-<span class="sourceLineNo">397</span>      try {<a name="line.397"></a>
-<span class="sourceLineNo">398</span>        FileSystem fs = FSUtils.getCurrentFileSystem(getConf());<a name="line.398"></a>
-<span class="sourceLineNo">399</span>        FsPermission defaultPerms = FSUtils.getFilePermissions(fs, getConf(),<a name="line.399"></a>
-<span class="sourceLineNo">400</span>            HConstants.DATA_FILE_UMASK_KEY);<a name="line.400"></a>
-<span class="sourceLineNo">401</span>        Path tmpDir = new Path(FSUtils.getRootDir(getConf()), HConstants.HBASE_TEMP_DIRECTORY);<a name="line.401"></a>
-<span class="sourceLineNo">402</span>        fs.mkdirs(tmpDir);<a name="line.402"></a>
-<span class="sourceLineNo">403</span>        HBCK_LOCK_PATH = new Path(tmpDir, HBCK_LOCK_FILE);<a name="line.403"></a>
-<span class="sourceLineNo">404</span>        final FSDataOutputStream out = createFileWithRetries(fs, HBCK_LOCK_PATH, defaultPerms);<a name="line.404"></a>
-<span class="sourceLineNo">405</span>        out.writeBytes(InetAddress.getLocalHost().toString());<a name="line.405"></a>
-<span class="sourceLineNo">406</span>        out.flush();<a name="line.406"></a>
-<span class="sourceLineNo">407</span>        return out;<a name="line.407"></a>
-<span class="sourceLineNo">408</span>      } catch(RemoteException e) {<a name="line.408"></a>
-<span class="sourceLineNo">409</span>        if(AlreadyBeingCreatedException.class.getName().equals(e.getClassName())){<a name="line.409"></a>
-<span class="sourceLineNo">410</span>          return null;<a name="line.410"></a>
-<span class="sourceLineNo">411</span>        } else {<a name="line.411"></a>
-<span class="sourceLineNo">412</span>          throw e;<a name="line.412"></a>
-<span class="sourceLineNo">413</span>        }<a name="line.413"></a>
-<span class="sourceLineNo">414</span>      }<a name="line.414"></a>
-<span class="sourceLineNo">415</span>    }<a name="line.415"></a>
-<span class="sourceLineNo">416</span><a name="line.416"></a>
-<span class="sourceLineNo">417</span>    private FSDataOutputStream createFileWithRetries(final FileSystem fs,<a name="line.417"></a>
-<span class="sourceLineNo">418</span>        final Path hbckLockFilePath, final FsPermission defaultPerms)<a name="line.418"></a>
-<span class="sourceLineNo">419</span>        throws IOException {<a name="line.419"></a>
-<span class="sourceLineNo">420</span><a name="line.420"></a>
-<span class="sourceLineNo">421</span>      IOException exception = null;<a name="line.421"></a>
-<span class="sourceLineNo">422</span>      do {<a name="line.422"></a>
-<span class="sourceLineNo">423</span>        try {<a name="line.423"></a>
-<span class="sourceLineNo">424</span>          return FSUtils.create(fs, hbckLockFilePath, defaultPerms, false);<a name="line.424"></a>
-<span class="sourceLineNo">425</span>        } catch (IOException ioe) {<a name="line.425"></a>
-<span class="sourceLineNo">426</span>          LOG.info("Failed to create lock file " + hbckLockFilePath.getName()<a name="line.426"></a>
-<span class="sourceLineNo">427</span>              + ", try=" + (retryCounter.getAttemptTimes() + 1) + " of "<a name="line.427"></a>
-<span class="sourceLineNo">428</span>              + retryCounter.getMaxAttempts());<a name="line.428"></a>
-<span class="sourceLineNo">429</span>          LOG.debug("Failed to create lock file " + hbckLockFilePath.getName(),<a name="line.429"></a>
-<span class="sourceLineNo">430</span>              ioe);<a name="line.430"></a>
-<span class="sourceLineNo">431</span>          try {<a name="line.431"></a>
-<span class="sourceLineNo">432</span>            exception = ioe;<a name="line.432"></a>
-<span class="sourceLineNo">433</span>            retryCounter.sleepUntilNextRetry();<a name="line.433"></a>
-<span class="sourceLineNo">434</span>          } catch (InterruptedException ie) {<a name="line.434"></a>
-<span class="sourceLineNo">435</span>            throw (InterruptedIOException) new InterruptedIOException(<a name="line.435"></a>
-<span class="sourceLineNo">436</span>                "Can't create lock file " + hbckLockFilePath.getName())<a name="line.436"></a>
-<span class="sourceLineNo">437</span>            .initCause(ie);<a name="line.437"></a>
-<span class="sourceLineNo">438</span>          }<a name="line.438"></a>
-<span class="sourceLineNo">439</span>        }<a name="line.439"></a>
-<span class="sourceLineNo">440</span>      } while (retryCounter.shouldRetry());<a name="line.440"></a>
-<span class="sourceLineNo">441</span><a name="line.441"></a>
-<span class="sourceLineNo">442</span>      throw exception;<a name="line.442"></a>
-<span class="sourceLineNo">443</span>    }<a name="line.443"></a>
-<span class="sourceLineNo">444</span>  }<a name="line.444"></a>
-<span class="sourceLineNo">445</span><a name="line.445"></a>
-<span class="sourceLineNo">446</span>  /**<a name="line.446"></a>
-<span class="sourceLineNo">447</span>   * This method maintains a lock using a file. If the creation fails we return null<a name="line.447"></a>
-<span class="sourceLineNo">448</span>   *<a name="line.448"></a>
-<span class="sourceLineNo">449</span>   * @return FSDataOutputStream object corresponding to the newly opened lock file<a name="line.449"></a>
-<span class="sourceLineNo">450</span>   * @throws IOException if IO failure occurs<a name="line.450"></a>
-<span class="sourceLineNo">451</span>   */<a name="line.451"></a>
-<span class="sourceLineNo">452</span>  private FSDataOutputStream checkAndMarkRunningHbck() throws IOException {<a name="line.452"></a>
-<span class="sourceLineNo">453</span>    RetryCounter retryCounter = lockFileRetryCounterFactory.create();<a name="line.453"></a>
-<span class="sourceLineNo">454</span>    FileLockCallable callable = new FileLockCallable(retryCounter);<a name="line.454"></a>
-<span class="sourceLineNo">455</span>    ExecutorService executor = Executors.newFixedThreadPool(1);<a name="line.455"></a>
-<span class="sourceLineNo">456</span>    FutureTask&lt;FSDataOutputStream&gt; futureTask = new FutureTask&lt;&gt;(callable);<a name="line.456"></a>
-<span class="sourceLineNo">457</span>    executor.execute(futureTask);<a name="line.457"></a>
-<span class="sourceLineNo">458</span>    final int timeoutInSeconds = getConf().getInt(<a name="line.458"></a>
-<span class="sourceLineNo">459</span>      "hbase.hbck.lockfile.maxwaittime", DEFAULT_WAIT_FOR_LOCK_TIMEOUT);<a name="line.459"></a>
-<span class="sourceLineNo">460</span>    FSDataOutputStream stream = null;<a name="line.460"></a>
-<span class="sourceLineNo">461</span>    try {<a name="line.461"></a>
-<span class="sourceLineNo">462</span>      stream = futureTask.get(timeoutInSeconds, TimeUnit.SECONDS);<a name="line.462"></a>
-<span class="sourceLineNo">463</span>    } catch (ExecutionException ee) {<a name="line.463"></a>
-<span class="sourceLineNo">464</span>      LOG.warn("Encountered exception when opening lock file", ee);<a name="line.464"></a>
-<span class="sourceLineNo">465</span>    } catch (InterruptedException ie) {<a name="line.465"></a>
-<span class="sourceLineNo">466</span>      LOG.warn("Interrupted when opening lock file", ie);<a name="line.466"></a>
-<span class="sourceLineNo">467</span>      Thread.currentThread().interrupt();<a name="line.467"></a>
-<span class="sourceLineNo">468</span>    } catch (TimeoutException exception) {<a name="line.468"></a>
-<span class="sourceLineNo">469</span>      // took too long to obtain lock<a name="line.469"></a>
-<span class="sourceLineNo">470</span>      LOG.warn("Took more than " + timeoutInSeconds + " seconds in obtaining lock");<a name="line.470"></a>
-<span class="sourceLineNo">471</span>      futureTask.cancel(true);<a name="line.471"></a>
-<span class="sourceLineNo">472</span>    } finally {<a name="line.472"></a>
-<span class="sourceLineNo">473</span>      executor.shutdownNow();<a name="line.473"></a>
-<span class="sourceLineNo">474</span>    }<a name="line.474"></a>
-<span class="sourceLineNo">475</span>    return stream;<a name="line.475"></a>
-<span class="sourceLineNo">476</span>  }<a name="line.476"></a>
-<span class="sourceLineNo">477</span><a name="line.477"></a>
-<span class="sourceLineNo">478</span>  private void unlockHbck() {<a name="line.478"></a>
-<span class="sourceLineNo">479</span>    if (isExclusive() &amp;&amp; hbckLockCleanup.compareAndSet(true, false)) {<a name="line.479"></a>
-<span class="sourceLineNo">480</span>      RetryCounter retryCounter = lockFileRetryCounterFactory.create();<a name="line.480"></a>
-<span class="sourceLineNo">481</span>      do {<a name="line.481"></a>
-<span class="sourceLineNo">482</span>        try {<a name="line.482"></a>
-<span class="sourceLineNo">483</span>          IOUtils.closeQuietly(hbckOutFd);<a name="line.483"></a>
-<span class="sourceLineNo">484</span>          FSUtils.delete(FSUtils.getCurrentFileSystem(getConf()),<a name="line.484"></a>
-<span class="sourceLineNo">485</span>              HBCK_LOCK_PATH, true);<a name="line.485"></a>
-<span class="sourceLineNo">486</span>          LOG.info("Finishing hbck");<a name="line.486"></a>
-<span class="sourceLineNo">487</span>          return;<a name="line.487"></a>
-<span class="sourceLineNo">488</span>        } catch (IOException ioe) {<a name="line.488"></a>
-<span class="sourceLineNo">489</span>          LOG.info("Failed to delete " + HBCK_LOCK_PATH + ", try="<a name="line.489"></a>
-<span class="sourceLineNo">490</span>              + (retryCounter.getAttemptTimes() + 1) + " of "<a name="line.490"></a>
-<span class="sourceLineNo">491</span>              + retryCounter.getMaxAttempts());<a name="line.491"></a>
-<span class="sourceLineNo">492</span>          LOG.debug("Failed to delete " + HBCK_LOCK_PATH, ioe);<a name="line.492"></a>
-<span class="sourceLineNo">493</span>          try {<a name="line.493"></a>
-<span class="sourceLineNo">494</span>            retryCounter.sleepUntilNextRetry();<a name="line.494"></a>
-<span class="sourceLineNo">495</span>          } catch (InterruptedException ie) {<a name="line.495"></a>
-<span class="sourceLineNo">496</span>            Thread.currentThread().interrupt();<a name="line.496"></a>
-<span class="sourceLineNo">497</span>            LOG.warn("Interrupted while deleting lock file" +<a name="line.497"></a>
-<span class="sourceLineNo">498</span>                HBCK_LOCK_PATH);<a name="line.498"></a>
-<span class="sourceLineNo">499</span>            return;<a name="line.499"></a>
-<span class="sourceLineNo">500</span>          }<a name="line.500"></a>
-<span class="sourceLineNo">501</span>        }<a name="line.501"></a>
-<span class="sourceLineNo">502</span>      } while (retryCounter.shouldRetry());<a name="line.502"></a>
-<span class="sourceLineNo">503</span>    }<a name="line.503"></a>
-<span class="sourceLineNo">504</span>  }<a name="line.504"></a>
-<span class="sourceLineNo">505</span><a name="line.505"></a>
-<span class="sourceLineNo">506</span>  /**<a name="line.506"></a>
-<span class="sourceLineNo">507</span>   * To repair region consistency, one must call connect() in order to repair<a name="line.507"></a>
-<span class="sourceLineNo">508</span>   * online state.<a name="line.508"></a>
-<span class="sourceLineNo">509</span>   */<a name="line.509"></a>
-<span class="sourceLineNo">510</span>  public void connect() throws IOException {<a name="line.510"></a>
-<span class="sourceLineNo">511</span><a name="line.511"></a>
-<span class="sourceLineNo">512</span>    if (isExclusive()) {<a name="line.512"></a>
-<span class="sourceLineNo">513</span>      // Grab the lock<a name="line.513"></a>
-<span class="sourceLineNo">514</span>      hbckOutFd = checkAndMarkRunningHbck();<a name="line.514"></a>
-<span class="sourceLineNo">515</span>      if (hbckOutFd == null) {<a name="line.515"></a>
-<span class="sourceLineNo">516</span>        setRetCode(-1);<a name="line.516"></a>
-<span class="sourceLineNo">517</span>        LOG.error("Another instance of hbck is fixing HBase, exiting this instance. " +<a name="line.517"></a>
-<span class="sourceLineNo">518</span>            "[If you are sure no other instance is running, delete the lock file " +<a name="line.518"></a>
-<span class="sourceLineNo">519</span>            HBCK_LOCK_PATH + " and rerun the tool]");<a name="line.519"></a>
-<span class="sourceLineNo">520</span>        throw new IOException("Duplicate hbck - Abort");<a name="line.520"></a>
-<span class="sourceLineNo">521</span>      }<a name="line.521"></a>
-<span class="sourceLineNo">522</span><a name="line.522"></a>
-<span class="sourceLineNo">523</span>      // Make sure to cleanup the lock<a name="line.523"></a>
-<span class="sourceLineNo">524</span>      hbckLockCleanup.set(true);<a name="line.524"></a>
-<span class="sourceLineNo">525</span>    }<a name="line.525"></a>
-<span class="sourceLineNo">526</span><a name="line.526"></a>
-<span class="sourceLineNo">527</span><a name="line.527"></a>
-<span class="sourceLineNo">528</span>    // Add a shutdown hook to this thread, in case user tries to<a name="line.528"></a>
-<span class="sourceLineNo">529</span>    // kill the hbck with a ctrl-c, we want to cleanup the lock so that<a name="line.529"></a>
-<span class="sourceLineNo">530</span>    // it is available for further calls<a name="line.530"></a>
-<span class="sourceLineNo">531</span>    Runtime.getRuntime().addShutdownHook(new Thread() {<a name="line.531"></a>
-<span class="sourceLineNo">532</span>      @Override<a name="line.532"></a>
-<span class="sourceLineNo">533</span>      public void run() {<a name="line.533"></a>
-<span class="sourceLineNo">534</span>        IOUtils.closeQuietly(HBaseFsck.this);<a name="line.534"></a>
-<span class="sourceLineNo">535</span>        cleanupHbckZnode();<a name="line.535"></a>
-<span class="sourceLineNo">536</span>        unlockHbck();<a name="line.536"></a>
-<span class="sourceLineNo">537</span>      }<a name="line.537"></a>
-<span class="sourceLineNo">538</span>    });<a name="line.538"></a>
-<span class="sourceLineNo">539</span><a name="line.539"></a>
-<span class="sourceLineNo">540</span>    LOG.info("Launching hbck");<a name="line.540"></a>
-<span class="sourceLineNo">541</span><a name="line.541"></a>
-<span class="sourceLineNo">542</span>    connection = (ClusterConnection)ConnectionFactory.createConnection(getConf());<a name="line.542"></a>
-<span class="sourceLineNo">543</span>    admin = connection.getAdmin();<a name="line.543"></a>
-<span class="sourceLineNo">544</span>    meta = connection.getTable(TableName.META_TABLE_NAME);<a name="line.544"></a>
-<span class="sourceLineNo">545</span>    status = admin.getClusterMetrics(EnumSet.of(Option.LIVE_SERVERS,<a name="line.545"></a>
-<span class="sourceLineNo">546</span>      Option.DEAD_SERVERS, Option.MASTER, Option.BACKUP_MASTERS,<a name="line.546"></a>
-<span class="sourceLineNo">547</span>      Option.REGIONS_IN_TRANSITION, Option.HBASE_VERSION));<a name="line.547"></a>
-<span class="sourceLineNo">548</span>  }<a name="line.548"></a>
-<span class="sourceLineNo">549</span><a name="line.549"></a>
-<span class="sourceLineNo">550</span>  /**<a name="line.550"></a>
-<span class="sourceLineNo">551</span>   * Get deployed regions according to the region servers.<a name="line.551"></a>
-<span class="sourceLineNo">552</span>   */<a name="line.552"></a>
-<span class="sourceLineNo">553</span>  private void loadDeployedRegions() throws IOException, InterruptedException {<a name="line.553"></a>
-<span class="sourceLineNo">554</span>    // From the master, get a list of all known live region servers<a name="line.554"></a>
-<span class="sourceLineNo">555</span>    Collection&lt;ServerName&gt; regionServers = status.getLiveServerMetrics().keySet();<a name="line.555"></a>
-<span class="sourceLineNo">556</span>    errors.print("Number of live region servers: " + regionServers.size());<a name="line.556"></a>
-<span class="sourceLineNo">557</span>    if (details) {<a name="line.557"></a>
-<span class="sourceLineNo">558</span>      for (ServerName rsinfo: regionServers) {<a name="line.558"></a>
-<span class="sourceLineNo">559</span>        errors.print("  " + rsinfo.getServerName());<a name="line.559"></a>
-<span class="sourceLineNo">560</span>      }<a name="line.560"></a>
-<span class="sourceLineNo">561</span>    }<a name="line.561"></a>
-<span class="sourceLineNo">562</span><a name="line.562"></a>
-<span class="sourceLineNo">563</span>    // From the master, get a list of all dead region servers<a name="line.563"></a>
-<span class="sourceLineNo">564</span>    Collection&lt;ServerName&gt; deadRegionServers = status.getDeadServerNames();<a name="line.564"></a>
-<span class="sourceLineNo">565</span>    errors.print("Number of dead region servers: " + deadRegionServers.size());<a name="line.565"></a>
-<span class="sourceLineNo">566</span>    if (details) {<a name="line.566"></a>
-<span class="sourceLineNo">567</span>      for (ServerName name: deadRegionServers) {<a name="line.567"></a>
-<span class="sourceLineNo">568</span>        errors.print("  " + name);<a name="line.568"></a>
-<span class="sourceLineNo">569</span>      }<a name="line.569"></a>
+<span class="sourceLineNo">314</span>   * This map contains the state of all hbck items.  It maps from encoded region<a name="line.314"></a>
+<span class="sourceLineNo">315</span>   * name to HbckInfo structure.  The information contained in HbckInfo is used<a name="line.315"></a>
+<span class="sourceLineNo">316</span>   * to detect and correct consistency (hdfs/meta/deployment) problems.<a name="line.316"></a>
+<span class="sourceLineNo">317</span>   */<a name="line.317"></a>
+<span class="sourceLineNo">318</span>  private TreeMap&lt;String, HbckInfo&gt; regionInfoMap = new TreeMap&lt;&gt;();<a name="line.318"></a>
+<span class="sourceLineNo">319</span>  // Empty regioninfo qualifiers in hbase:meta<a name="line.319"></a>
+<span class="sourceLineNo">320</span>  private Set&lt;Result&gt; emptyRegionInfoQualifiers = new HashSet&lt;&gt;();<a name="line.320"></a>
+<span class="sourceLineNo">321</span><a name="line.321"></a>
+<span class="sourceLineNo">322</span>  /**<a name="line.322"></a>
+<span class="sourceLineNo">323</span>   * This map from Tablename -&gt; TableInfo contains the structures necessary to<a name="line.323"></a>
+<span class="sourceLineNo">324</span>   * detect table consistency problems (holes, dupes, overlaps).  It is sorted<a name="line.324"></a>
+<span class="sourceLineNo">325</span>   * to prevent dupes.<a name="line.325"></a>
+<span class="sourceLineNo">326</span>   *<a name="line.326"></a>
+<span class="sourceLineNo">327</span>   * If tablesIncluded is empty, this map contains all tables.<a name="line.327"></a>
+<span class="sourceLineNo">328</span>   * Otherwise, it contains only meta tables and tables in tablesIncluded,<a name="line.328"></a>
+<span class="sourceLineNo">329</span>   * unless checkMetaOnly is specified, in which case, it contains only<a name="line.329"></a>
+<span class="sourceLineNo">330</span>   * the meta table<a name="line.330"></a>
+<span class="sourceLineNo">331</span>   */<a name="line.331"></a>
+<span class="sourceLineNo">332</span>  private SortedMap&lt;TableName, TableInfo&gt; tablesInfo = new ConcurrentSkipListMap&lt;&gt;();<a name="line.332"></a>
+<span class="sourceLineNo">333</span><a name="line.333"></a>
+<span class="sourceLineNo">334</span>  /**<a name="line.334"></a>
+<span class="sourceLineNo">335</span>   * When initially looking at HDFS, we attempt to find any orphaned data.<a name="line.335"></a>
+<span class="sourceLineNo">336</span>   */<a name="line.336"></a>
+<span class="sourceLineNo">337</span>  private List&lt;HbckInfo&gt; orphanHdfsDirs = Collections.synchronizedList(new ArrayList&lt;HbckInfo&gt;());<a name="line.337"></a>
+<span class="sourceLineNo">338</span><a name="line.338"></a>
+<span class="sourceLineNo">339</span>  private Map&lt;TableName, Set&lt;String&gt;&gt; orphanTableDirs = new HashMap&lt;&gt;();<a name="line.339"></a>
+<span class="sourceLineNo">340</span>  private Map&lt;TableName, TableState&gt; tableStates = new HashMap&lt;&gt;();<a name="line.340"></a>
+<span class="sourceLineNo">341</span>  private final RetryCounterFactory lockFileRetryCounterFactory;<a name="line.341"></a>
+<span class="sourceLineNo">342</span>  private final RetryCounterFactory createZNodeRetryCounterFactory;<a name="line.342"></a>
+<span class="sourceLineNo">343</span><a name="line.343"></a>
+<span class="sourceLineNo">344</span>  private Map&lt;TableName, Set&lt;String&gt;&gt; skippedRegions = new HashMap&lt;&gt;();<a name="line.344"></a>
+<span class="sourceLineNo">345</span><a name="line.345"></a>
+<span class="sourceLineNo">346</span>  private ZKWatcher zkw = null;<a name="line.346"></a>
+<span class="sourceLineNo">347</span>  private String hbckEphemeralNodePath = null;<a name="line.347"></a>
+<span class="sourceLineNo">348</span>  private boolean hbckZodeCreated = false;<a name="line.348"></a>
+<span class="sourceLineNo">349</span><a name="line.349"></a>
+<span class="sourceLineNo">350</span>  /**<a name="line.350"></a>
+<span class="sourceLineNo">351</span>   * Constructor<a name="line.351"></a>
+<span class="sourceLineNo">352</span>   *<a name="line.352"></a>
+<span class="sourceLineNo">353</span>   * @param conf Configuration object<a name="line.353"></a>
+<span class="sourceLineNo">354</span>   * @throws MasterNotRunningException if the master is not running<a name="line.354"></a>
+<span class="sourceLineNo">355</span>   * @throws ZooKeeperConnectionException if unable to connect to ZooKeeper<a name="line.355"></a>
+<span class="sourceLineNo">356</span>   */<a name="line.356"></a>
+<span class="sourceLineNo">357</span>  public HBaseFsck(Configuration conf) throws IOException, ClassNotFoundException {<a name="line.357"></a>
+<span class="sourceLineNo">358</span>    this(conf, createThreadPool(conf));<a name="line.358"></a>
+<span class="sourceLineNo">359</span>  }<a name="line.359"></a>
+<span class="sourceLineNo">360</span><a name="line.360"></a>
+<span class="sourceLineNo">361</span>  private static ExecutorService createThreadPool(Configuration conf) {<a name="line.361"></a>
+<span class="sourceLineNo">362</span>    int numThreads = conf.getInt("hbasefsck.numthreads", MAX_NUM_THREADS);<a name="line.362"></a>
+<span class="sourceLineNo">363</span>    return new ScheduledThreadPoolExecutor(numThreads, Threads.newDaemonThreadFactory("hbasefsck"));<a name="line.363"></a>
+<span class="sourceLineNo">364</span>  }<a name="line.364"></a>
+<span class="sourceLineNo">365</span><a name="line.365"></a>
+<span class="sourceLineNo">366</span>  /**<a name="line.366"></a>
+<span class="sourceLineNo">367</span>   * Constructor<a name="line.367"></a>
+<span class="sourceLineNo">368</span>   *<a name="line.368"></a>
+<span class="sourceLineNo">369</span>   * @param conf<a name="line.369"></a>
+<span class="sourceLineNo">370</span>   *          Configuration object<a name="line.370"></a>
+<span class="sourceLineNo">371</span>   * @throws MasterNotRunningException<a name="line.371"></a>
+<span class="sourceLineNo">372</span>   *           if the master is not running<a name="line.372"></a>
+<span class="sourceLineNo">373</span>   * @throws ZooKeeperConnectionException<a name="line.373"></a>
+<span class="sourceLineNo">374</span>   *           if unable to connect to ZooKeeper<a name="line.374"></a>
+<span class="sourceLineNo">375</span>   */<a name="line.375"></a>
+<span class="sourceLineNo">376</span>  public HBaseFsck(Configuration conf, ExecutorService exec) throws MasterNotRunningException,<a name="line.376"></a>
+<span class="sourceLineNo">377</span>      ZooKeeperConnectionException, IOException, ClassNotFoundException {<a name="line.377"></a>
+<span class="sourceLineNo">378</span>    super(conf);<a name="line.378"></a>
+<span class="sourceLineNo">379</span>    errors = getErrorReporter(getConf());<a name="line.379"></a>
+<span class="sourceLineNo">380</span>    this.executor = exec;<a name="line.380"></a>
+<span class="sourceLineNo">381</span>    lockFileRetryCounterFactory = createLockRetryCounterFactory(getConf());<a name="line.381"></a>
+<span class="sourceLineNo">382</span>    createZNodeRetryCounterFactory = createZnodeRetryCounterFactory(getConf());<a name="line.382"></a>
+<span class="sourceLineNo">383</span>    zkw = createZooKeeperWatcher();<a name="line.383"></a>
+<span class="sourceLineNo">384</span>  }<a name="line.384"></a>
+<span class="sourceLineNo">385</span><a name="line.385"></a>
+<span class="sourceLineNo">386</span>  /**<a name="line.386"></a>
+<span class="sourceLineNo">387</span>   * @return A retry counter factory configured for retrying lock file creation.<a name="line.387"></a>
+<span class="sourceLineNo">388</span>   */<a name="line.388"></a>
+<span class="sourceLineNo">389</span>  public static RetryCounterFactory createLockRetryCounterFactory(Configuration conf) {<a name="line.389"></a>
+<span class="sourceLineNo">390</span>    return new RetryCounterFactory(<a name="line.390"></a>
+<span class="sourceLineNo">391</span>        conf.getInt("hbase.hbck.lockfile.attempts", DEFAULT_MAX_LOCK_FILE_ATTEMPTS),<a name="line.391"></a>
+<span class="sourceLineNo">392</span>        conf.getInt("hbase.hbck.lockfile.attempt.sleep.interval",<a name="line.392"></a>
+<span class="sourceLineNo">393</span>            DEFAULT_LOCK_FILE_ATTEMPT_SLEEP_INTERVAL),<a name="line.393"></a>
+<span class="sourceLineNo">394</span>        conf.getInt("hbase.hbck.lockfile.attempt.maxsleeptime",<a name="line.394"></a>
+<span class="sourceLineNo">395</span>            DEFAULT_LOCK_FILE_ATTEMPT_MAX_SLEEP_TIME));<a name="line.395"></a>
+<span class="sourceLineNo">396</span>  }<a name="line.396"></a>
+<span class="sourceLineNo">397</span><a name="line.397"></a>
+<span class="sourceLineNo">398</span>  /**<a name="line.398"></a>
+<span class="sourceLineNo">399</span>   * @return A retry counter factory configured for retrying znode creation.<a name="line.399"></a>
+<span class="sourceLineNo">400</span>   */<a name="line.400"></a>
+<span class="sourceLineNo">401</span>  private static RetryCounterFactory createZnodeRetryCounterFactory(Configuration conf) {<a name="line.401"></a>
+<span class="sourceLineNo">402</span>    return new RetryCounterFactory(<a name="line.402"></a>
+<span class="sourceLineNo">403</span>        conf.getInt("hbase.hbck.createznode.attempts", DEFAULT_MAX_CREATE_ZNODE_ATTEMPTS),<a name="line.403"></a>
+<span class="sourceLineNo">404</span>        conf.getInt("hbase.hbck.createznode.attempt.sleep.interval",<a name="line.404"></a>
+<span class="sourceLineNo">405</span>            DEFAULT_CREATE_ZNODE_ATTEMPT_SLEEP_INTERVAL),<a name="line.405"></a>
+<span class="sourceLineNo">406</span>        conf.getInt("hbase.hbck.createznode.attempt.maxsleeptime",<a name="line.406"></a>
+<span class="sourceLineNo">407</span>            DEFAULT_CREATE_ZNODE_ATTEMPT_MAX_SLEEP_TIME));<a name="line.407"></a>
+<span class="sourceLineNo">408</span>  }<a name="line.408"></a>
+<span class="sourceLineNo">409</span><a name="line.409"></a>
+<span class="sourceLineNo">410</span>  /**<a name="line.410"></a>
+<span class="sourceLineNo">411</span>   * @return Return the tmp dir this tool writes too.<a name="line.411"></a>
+<span class="sourceLineNo">412</span>   */<a name="line.412"></a>
+<span class="sourceLineNo">413</span>  @VisibleForTesting<a name="line.413"></a>
+<span class="sourceLineNo">414</span>  public static Path getTmpDir(Configuration conf) throws IOException {<a name="line.414"></a>
+<span class="sourceLineNo">415</span>    return new Path(FSUtils.getRootDir(conf), HConstants.HBASE_TEMP_DIRECTORY);<a name="line.415"></a>
+<span class="sourceLineNo">416</span>  }<a name="line.416"></a>
+<span class="sourceLineNo">417</span><a name="line.417"></a>
+<span class="sourceLineNo">418</span>  private static class FileLockCallable implements Callable&lt;FSDataOutputStream&gt; {<a name="line.418"></a>
+<span class="sourceLineNo">419</span>    RetryCounter retryCounter;<a name="line.419"></a>
+<span class="sourceLineNo">420</span>    private final Configuration conf;<a name="line.420"></a>
+<span class="sourceLineNo">421</span>    private Path hbckLockPath = null;<a name="line.421"></a>
+<span class="sourceLineNo">422</span><a name="line.422"></a>
+<span class="sourceLineNo">423</span>    public FileLockCallable(Configuration conf, RetryCounter retryCounter) {<a name="line.423"></a>
+<span class="sourceLineNo">424</span>      this.retryCounter = retryCounter;<a name="line.424"></a>
+<span class="sourceLineNo">425</span>      this.conf = conf;<a name="line.425"></a>
+<span class="sourceLineNo">426</span>    }<a name="line.426"></a>
+<span class="sourceLineNo">427</span><a name="line.427"></a>
+<span class="sourceLineNo">428</span>    /**<a name="line.428"></a>
+<span class="sourceLineNo">429</span>     * @return Will be &lt;code&gt;null&lt;/code&gt; unless you call {@link #call()}<a name="line.429"></a>
+<span class="sourceLineNo">430</span>     */<a name="line.430"></a>
+<span class="sourceLineNo">431</span>    Path getHbckLockPath() {<a name="line.431"></a>
+<span class="sourceLineNo">432</span>      return this.hbckLockPath;<a name="line.432"></a>
+<span class="sourceLineNo">433</span>    }<a name="line.433"></a>
+<span class="sourceLineNo">434</span><a name="line.434"></a>
+<span class="sourceLineNo">435</span>    @Override<a name="line.435"></a>
+<span class="sourceLineNo">436</span>    public FSDataOutputStream call() throws IOException {<a name="line.436"></a>
+<span class="sourceLineNo">437</span>      try {<a name="line.437"></a>
+<span class="sourceLineNo">438</span>        FileSystem fs = FSUtils.getCurrentFileSystem(this.conf);<a name="line.438"></a>
+<span class="sourceLineNo">439</span>        FsPermission defaultPerms = FSUtils.getFilePermissions(fs, this.conf,<a name="line.439"></a>
+<span class="sourceLineNo">440</span>            HConstants.DATA_FILE_UMASK_KEY);<a name="line.440"></a>
+<span class="sourceLineNo">441</span>        Path tmpDir = getTmpDir(conf);<a name="line.441"></a>
+<span class="sourceLineNo">442</span>        this.hbckLockPath = new Path(tmpDir, HBCK_LOCK_FILE);<a name="line.442"></a>
+<span class="sourceLineNo">443</span>        fs.mkdirs(tmpDir);<a name="line.443"></a>
+<span class="sourceLineNo">444</span>        final FSDataOutputStream out = createFileWithRetries(fs, this.hbckLockPath, defaultPerms);<a name="line.444"></a>
+<span class="sourceLineNo">445</span>        out.writeBytes(InetAddress.getLocalHost().toString());<a name="line.445"></a>
+<span class="sourceLineNo">446</span>        // Add a note into the file we write on why hbase2 is writing out an hbck1 lock file.<a name="line.446"></a>
+<span class="sourceLineNo">447</span>        out.writeBytes(" Written by an hbase-2.x Master to block an " +<a name="line.447"></a>
+<span class="sourceLineNo">448</span>            "attempt by an hbase-1.x HBCK tool making modification to state. " +<a name="line.448"></a>
+<span class="sourceLineNo">449</span>            "See 'HBCK must match HBase server version' in the hbase refguide.");<a name="line.449"></a>
+<span class="sourceLineNo">450</span>        out.flush();<a name="line.450"></a>
+<span class="sourceLineNo">451</span>        return out;<a name="line.451"></a>
+<span class="sourceLineNo">452</span>      } catch(RemoteException e) {<a name="line.452"></a>
+<span class="sourceLineNo">453</span>        if(AlreadyBeingCreatedException.class.getName().equals(e.getClassName())){<a name="line.453"></a>
+<span class="sourceLineNo">454</span>          return null;<a name="line.454"></a>
+<span class="sourceLineNo">455</span>        } else {<a name="line.455"></a>
+<span class="sourceLineNo">456</span>          throw e;<a name="line.456"></a>
+<span class="sourceLineNo">457</span>        }<a name="line.457"></a>
+<span class="sourceLineNo">458</span>      }<a name="line.458"></a>
+<span class="sourceLineNo">459</span>    }<a name="line.459"></a>
+<span class="sourceLineNo">460</span><a name="line.460"></a>
+<span class="sourceLineNo">461</span>    private FSDataOutputStream createFileWithRetries(final FileSystem fs,<a name="line.461"></a>
+<span class="sourceLineNo">462</span>        final Path hbckLockFilePath, final FsPermission defaultPerms)<a name="line.462"></a>
+<span class="sourceLineNo">463</span>        throws IOException {<a name="line.463"></a>
+<span class="sourceLineNo">464</span>      IOException exception = null;<a name="line.464"></a>
+<span class="sourceLineNo">465</span>      do {<a name="line.465"></a>
+<span class="sourceLineNo">466</span>        try {<a name="line.466"></a>
+<span class="sourceLineNo">467</span>          return FSUtils.create(fs, hbckLockFilePath, defaultPerms, false);<a name="line.467"></a>
+<span class="sourceLineNo">468</span>        } catch (IOException ioe) {<a name="line.468"></a>
+<span class="sourceLineNo">469</span>          LOG.info("Failed to create lock file " + hbckLockFilePath.getName()<a name="line.469"></a>
+<span class="sourceLineNo">470</span>              + ", try=" + (retryCounter.getAttemptTimes() + 1) + " of "<a name="line.470"></a>
+<span class="sourceLineNo">471</span>              + retryCounter.getMaxAttempts());<a name="line.471"></a>
+<span class="sourceLineNo">472</span>          LOG.debug("Failed to create lock file " + hbckLockFilePath.getName(),<a name="line.472"></a>
+<span class="sourceLineNo">473</span>              ioe);<a name="line.473"></a>
+<span class="sourceLineNo">474</span>          try {<a name="line.474"></a>
+<span class="sourceLineNo">475</span>            exception = ioe;<a name="line.475"></a>
+<span class="sourceLineNo">476</span>            retryCounter.sleepUntilNextRetry();<a name="line.476"></a>
+<span class="sourceLineNo">477</span>          } catch (InterruptedException ie) {<a name="line.477"></a>
+<span class="sourceLineNo">478</span>            throw (InterruptedIOException) new InterruptedIOException(<a name="line.478"></a>
+<span class="sourceLineNo">479</span>                "Can't create lock file " + hbckLockFilePath.getName())<a name="line.479"></a>
+<span class="sourceLineNo">480</span>            .initCause(ie);<a name="line.480"></a>
+<span class="sourceLineNo">481</span>          }<a name="line.481"></a>
+<span class="sourceLineNo">482</span>        }<a name="line.482"></a>
+<span class="sourceLineNo">483</span>      } while (retryCounter.shouldRetry());<a name="line.483"></a>
+<span class="sourceLineNo">484</span><a name="line.484"></a>
+<span class="sourceLineNo">485</span>      throw exception;<a name="line.485"></a>
+<span class="sourceLineNo">486</span>    }<a name="line.486"></a>
+<span class="sourceLineNo">487</span>  }<a name="line.487"></a>
+<span class="sourceLineNo">488</span><a name="line.488"></a>
+<span class="sourceLineNo">489</span>  /**<a name="line.489"></a>
+<span class="sourceLineNo">490</span>   * This method maintains a lock using a file. If the creation fails we return null<a name="line.490"></a>
+<span class="sourceLineNo">491</span>   *<a name="line.491"></a>
+<span class="sourceLineNo">492</span>   * @return FSDataOutputStream object corresponding to the newly opened lock file<a name="line.492"></a>
+<span class="sourceLineNo">493</span>   * @throws IOException if IO failure occurs<a name="line.493"></a>
+<span class="sourceLineNo">494</span>   */<a name="line.494"></a>
+<span class="sourceLineNo">495</span>  public static Pair&lt;Path, FSDataOutputStream&gt; checkAndMarkRunningHbck(Configuration conf,<a name="line.495"></a>
+<span class="sourceLineNo">496</span>      RetryCounter retryCounter) throws IOException {<a name="line.496"></a>
+<span class="sourceLineNo">497</span>    FileLockCallable callable = new FileLockCallable(conf, retryCounter);<a name="line.497"></a>
+<span class="sourceLineNo">498</span>    ExecutorService executor = Executors.newFixedThreadPool(1);<a name="line.498"></a>
+<span class="sourceLineNo">499</span>    FutureTask&lt;FSDataOutputStream&gt; futureTask = new FutureTask&lt;&gt;(callable);<a name="line.499"></a>
+<span class="sourceLineNo">500</span>    executor.execute(futureTask);<a name="line.500"></a>
+<span class="sourceLineNo">501</span>    final int timeoutInSeconds = conf.getInt(<a name="line.501"></a>
+<span class="sourceLineNo">502</span>      "hbase.hbck.lockfile.maxwaittime", DEFAULT_WAIT_FOR_LOCK_TIMEOUT);<a name="line.502"></a>
+<span class="sourceLineNo">503</span>    FSDataOutputStream stream = null;<a name="line.503"></a>
+<span class="sourceLineNo">504</span>    try {<a name="line.504"></a>
+<span class="sourceLineNo">505</span>      stream = futureTask.get(timeoutInSeconds, TimeUnit.SECONDS);<a name="line.505"></a>
+<span class="sourceLineNo">506</span>    } catch (ExecutionException ee) {<a name="line.506"></a>
+<span class="sourceLineNo">507</span>      LOG.warn("Encountered exception when opening lock file", ee);<a name="line.507"></a>
+<span class="sourceLineNo">508</span>    } catch (InterruptedException ie) {<a name="line.508"></a>
+<span class="sourceLineNo">509</span>      LOG.warn("Interrupted when opening lock file", ie);<a name="line.509"></a>
+<span class="sourceLineNo">510</span>      Thread.currentThread().interrupt();<a name="line.510"></a>
+<span class="sourceLineNo">511</span>    } catch (TimeoutException exception) {<a name="line.511"></a>
+<span class="sourceLineNo">512</span>      // took too long to obtain lock<a name="line.512"></a>
+<span class="sourceLineNo">513</span>      LOG.warn("Took more than " + timeoutInSeconds + " seconds in obtaining lock");<a name="line.513"></a>
+<span class="sourceLineNo">514</span>      futureTask.cancel(true);<a name="line.514"></a>
+<span class="sourceLineNo">515</span>    } finally {<a name="line.515"></a>
+<span class="sourceLineNo">516</span>      executor.shutdownNow();<a name="line.516"></a>
+<span class="sourceLineNo">517</span>    }<a name="line.517"></a>
+<span class="sourceLineNo">518</span>    return new Pair&lt;Path, FSDataOutputStream&gt;(callable.getHbckLockPath(), stream);<a name="line.518"></a>
+<span class="sourceLineNo">519</span>  }<a name="line.519"></a>
+<span class="sourceLineNo">520</span><a name="line.520"></a>
+<span class="sourceLineNo">521</span>  private void unlockHbck() {<a name="line.521"></a>
+<span class="sourceLineNo">522</span>    if (isExclusive() &amp;&amp; hbckLockCleanup.compareAndSet(true, false)) {<a name="line.522"></a>
+<span class="sourceLineNo">523</span>      RetryCounter retryCounter = lockFileRetryCounterFactory.create();<a name="line.523"></a>
+<span class="sourceLineNo">524</span>      do {<a name="line.524"></a>
+<span class="sourceLineNo">525</span>        try {<a name="line.525"></a>
+<span class="sourceLineNo">526</span>          IOUtils.closeQuietly(hbckOutFd);<a name="line.526"></a>
+<span class="sourceLineNo">527</span>          FSUtils.delete(FSUtils.getCurrentFileSystem(getConf()), HBCK_LOCK_PATH, true);<a name="line.527"></a>
+<span class="sourceLineNo">528</span>          LOG.info("Finishing hbck");<a name="line.528"></a>
+<span class="sourceLineNo">529</span>          return;<a name="line.529"></a>
+<span class="sourceLineNo">530</span>        } catch (IOException ioe) {<a name="line.530"></a>
+<span class="sourceLineNo">531</span>          LOG.info("Failed to delete " + HBCK_LOCK_PATH + ", try="<a name="line.531"></a>
+<span class="sourceLineNo">532</span>              + (retryCounter.getAttemptTimes() + 1) + " of "<a name="line.532"></a>
+<span class="sourceLineNo">533</span>              + retryCounter.getMaxAttempts());<a name="line.533"></a>
+<span class="sourceLineNo">534</span>          LOG.debug("Failed to delete " + HBCK_LOCK_PATH, ioe);<a name="line.534"></a>
+<span class="sourceLineNo">535</span>          try {<a name="line.535"></a>
+<span class="sourceLineNo">536</span>            retryCounter.sleepUntilNextRetry();<a name="line.536"></a>
+<span class="sourceLineNo">537</span>          } catch (InterruptedException ie) {<a name="line.537"></a>
+<span class="sourceLineNo">538</span>            Thread.currentThread().interrupt();<a name="line.538"></a>
+<span class="sourceLineNo">539</span>            LOG.warn("Interrupted while deleting lock file" +<a name="line.539"></a>
+<span class="sourceLineNo">540</span>                HBCK_LOCK_PATH);<a name="line.540"></a>
+<span class="sourceLineNo">541</span>            return;<a name="line.541"></a>
+<span class="sourceLineNo">542</span>          }<a name="line.542"></a>
+<span class="sourceLineNo">543</span>        }<a name="line.543"></a>
+<span class="sourceLineNo">544</span>      } while (retryCounter.shouldRetry());<a name="line.544"></a>
+<span class="sourceLineNo">545</span>    }<a name="line.545"></a>
+<span class="sourceLineNo">546</span>  }<a name="line.546"></a>
+<span class="sourceLineNo">547</span><a name="line.547"></a>
+<span class="sourceLineNo">548</span>  /**<a name="line.548"></a>
+<span class="sourceLineNo">549</span>   * To repair region consistency, one must call connect() in order to repair<a name="line.549"></a>
+<span class="sourceLineNo">550</span>   * online state.<a name="line.550"></a>
+<span class="sourceLineNo">551</span>   */<a name="line.551"></a>
+<span class="sourceLineNo">552</span>  public void connect() throws IOException {<a name="line.552"></a>
+<span class="sourceLineNo">553</span><a name="line.553"></a>
+<span class="sourceLineNo">554</span>    if (isExclusive()) {<a name="line.554"></a>
+<span class="sourceLineNo">555</span>      // Grab the lock<a name="line.555"></a>
+<span class="sourceLineNo">556</span>      Pair&lt;Path, FSD

<TRUNCATED>

Mime
View raw message