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Date: Wed, 25 Jan 2017 20:42:26 +0000 (UTC)
From: "Enis Soztutar (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.13037835.1485376885000.204597.1485376946496@Atlassian.JIRA>
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Subject: [jira] [Commented] (HBASE-17538) HFS.setStoragePolicy() logs errors
 on local fs
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archived-at: Wed, 25 Jan 2017 20:42:39 -0000


    [ https://issues.apache.org/jira/browse/HBASE-17538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15838536#comment-15838536 ] 

Enis Soztutar commented on HBASE-17538:
---------------------------------------

[~tedyu] any idea? 

> HFS.setStoragePolicy() logs errors on local fs
> ----------------------------------------------
>
>                 Key: HBASE-17538
>                 URL: https://issues.apache.org/jira/browse/HBASE-17538
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Enis Soztutar
>
> On a master pseudo-cluster running on local disk, the log contains a lot of these: 
> {code}
> 2017-01-25 12:30:41,542 WARN  [StoreOpener-32976c3c9b7c28ad632c041da486bfc3-1] fs.HFileSystem: Failed to set storage policy of [file:/var/folders/h5/bbxg50c12r5bhsd9hf1n9hlr0000gp/T/hbase-enis/hbase/dat
> java.lang.UnsupportedOperationException: Cannot find specified method setStoragePolicy
>   at org.apache.hadoop.hbase.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:209)
>   at org.apache.hadoop.hbase.fs.HFileSystem.setStoragePolicy(HFileSystem.java:161)
>   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>   at java.lang.reflect.Method.invoke(Method.java:497)
>   at org.apache.hadoop.hbase.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:207)
>   at org.apache.hadoop.hbase.regionserver.HRegionFileSystem.setStoragePolicy(HRegionFileSystem.java:198)
>   at org.apache.hadoop.hbase.regionserver.HStore.<init>(HStore.java:237)
>   at org.apache.hadoop.hbase.regionserver.HRegion.instantiateHStore(HRegion.java:5265)
>   at org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:988)
>   at org.apache.hadoop.hbase.regionserver.HRegion$1.call(HRegion.java:985)
>   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>   at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>   at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NoSuchMethodException: org.apache.hadoop.fs.LocalFileSystem.setStoragePolicy(org.apache.hadoop.fs.Path, java.lang.String)
>   at java.lang.Class.getMethod(Class.java:1786)
>   at org.apache.hadoop.hbase.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:205)
>   ... 17 more
> {code}
> These are coming from HFS.setStoragePolicy() or HRegionFS.setStoragePolicy() . 
> This check: 
> {code}
> try {
>       ReflectionUtils.invokeMethod(this.fs, "setStoragePolicy", storeDir, policyName);
>     } catch (Exception e) {
>       if (!(this.fs instanceof LocalFileSystem)) {
>         LOG.warn("Failed to set storage policy of [" + storeDir + "] to [" + policyName + "]", e);
>       }
>     }
> {code} 
> does not work, because fs is not a LocalFS, but an HFS. And HFS internally does not do this check. seStoragePolicy() is very HDFS specific, the logic should instead check whether the underlying fs is HDFS (as opposed to checking whether it is not local FS). There are file systems that HBase supports other than local or HDFS. 


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