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From st...@apache.org
Subject git commit: HBASE-10607 [JDK8] NoSuchMethodError involving ConcurrentHashMap.keySet if running on JRE 7
Date Wed, 01 Oct 2014 03:58:51 GMT
Repository: hbase
Updated Branches:
  refs/heads/master 7a064f96b -> e97b43a16


HBASE-10607 [JDK8] NoSuchMethodError involving ConcurrentHashMap.keySet if running on JRE
7


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/e97b43a1
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/e97b43a1
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/e97b43a1

Branch: refs/heads/master
Commit: e97b43a16b9aaa01fdae32c109aa3dc7f823d5ab
Parents: 7a064f9
Author: stack <stack@apache.org>
Authored: Tue Sep 30 20:58:41 2014 -0700
Committer: stack <stack@apache.org>
Committed: Tue Sep 30 20:58:41 2014 -0700

----------------------------------------------------------------------
 src/main/docbkx/troubleshooting.xml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/e97b43a1/src/main/docbkx/troubleshooting.xml
----------------------------------------------------------------------
diff --git a/src/main/docbkx/troubleshooting.xml b/src/main/docbkx/troubleshooting.xml
index f48e26f..8195cba 100644
--- a/src/main/docbkx/troubleshooting.xml
+++ b/src/main/docbkx/troubleshooting.xml
@@ -1644,5 +1644,24 @@ security.provider.1=sun.security.pkcs11.SunPKCS11 ${java.home}/lib/security/nss.
       <screen language="bourne">[user@host]# <userinput>echo &lt;value&gt;
> /proc/sys/vm/min_free_kbytes</userinput></screen>
     </section>
   </section>
+  <section>
+    <title>JDK Issues</title>
+  <section>
+    <title>NoSuchMethodError: java.util.concurrent.ConcurrentHashMap.keySet</title>
+<para>
+If you see this in your logs:
+    <programlisting>Caused by: java.lang.NoSuchMethodError: java.util.concurrent.ConcurrentHashMap.keySet()Ljava/util/concurrent/ConcurrentHashMap$KeySetView;
+  at org.apache.hadoop.hbase.master.ServerManager.findServerWithSameHostnamePortWithLock(ServerManager.java:393)
+  at org.apache.hadoop.hbase.master.ServerManager.checkAndRecordNewServer(ServerManager.java:307)
+  at org.apache.hadoop.hbase.master.ServerManager.regionServerStartup(ServerManager.java:244)
+  at org.apache.hadoop.hbase.master.MasterRpcServices.regionServerStartup(MasterRpcServices.java:304)
+  at org.apache.hadoop.hbase.protobuf.generated.RegionServerStatusProtos$RegionServerStatusService$2.callBlockingMethod(RegionServerStatusProtos.java:7910)
+  at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2020)
+  ... 4 more</programlisting>
+then check if you compiled with jdk8 and tried to run it on jdk7.  If so, this won't work.
+Run on jdk8 or recompile with jdk7.  See <link xlink:href="https://issues.apache.org/jira/browse/HBASE-10607">HBASE-10607
[JDK8] NoSuchMethodError involving ConcurrentHashMap.keySet if running on JRE 7</link>.
+</para>
+  </section>
+  </section>
 
 </chapter>


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