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Posted to issues@hbase.apache.org by "Mingliang Liu (JIRA)" <ji...@apache.org> on 2019/06/19 22:17:00 UTC

[jira] [Created] (HBASE-22607) TestExportSnapshotNoCluster fails intermittently

Mingliang Liu created HBASE-22607:
-------------------------------------

             Summary: TestExportSnapshotNoCluster fails intermittently
                 Key: HBASE-22607
                 URL: https://issues.apache.org/jira/browse/HBASE-22607
             Project: HBase
          Issue Type: Bug
          Components: test
    Affects Versions: 2.2.0, 3.0.0, 2.0.6
            Reporter: Mingliang Liu
            Assignee: Mingliang Liu


In previous runs, test {{TestExportSnapshotNoCluster.testSnapshotWithRefsExportFileSystemState}} fails intermittently with {{java.net.ConnectException: Connection refused}} exception, see build [510|https://builds.apache.org/job/PreCommit-HBASE-Build/510/testReport/org.apache.hadoop.hbase.snapshot/TestExportSnapshotNoCluster/testSnapshotWithRefsExportFileSystemState/], [545|https://builds.apache.org/job/PreCommit-HBASE-Build/545/testReport/org.apache.hadoop.hbase.snapshot/TestExportSnapshotNoCluster/testSnapshotWithRefsExportFileSystemState/], and [556|https://builds.apache.org/job/PreCommit-HBASE-Build/556/testReport/org.apache.hadoop.hbase.snapshot/TestExportSnapshotNoCluster/testSnapshotWithRefsExportFileSystemState/].

So one sample exception is like:
{quote}
at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:155)
	at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
	at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:346)
	at com.sun.proxy.$Proxy20.getListing(Unknown Source)
	at org.apache.hadoop.hdfs.DFSClient.listPaths(DFSClient.java:1630)
	at org.apache.hadoop.hdfs.DFSClient.listPaths(DFSClient.java:1614)
	at org.apache.hadoop.hdfs.DistributedFileSystem.listStatusInternal(DistributedFileSystem.java:900)
	at org.apache.hadoop.hdfs.DistributedFileSystem.access$600(DistributedFileSystem.java:114)
	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:964)
	at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:961)
	at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
	at org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:961)
	at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1537)
	at org.apache.hadoop.fs.FileSystem.listStatus(FileSystem.java:1580)
	at org.apache.hadoop.hbase.util.CommonFSUtils.listStatus(CommonFSUtils.java:693)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.getCurrentTableInfoStatus(FSTableDescriptors.java:448)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.getTableInfoPath(FSTableDescriptors.java:429)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.getTableInfoPath(FSTableDescriptors.java:410)
	at org.apache.hadoop.hbase.util.FSTableDescriptors.createTableDescriptorForTableDirectory(FSTableDescriptors.java:763)
	at org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils$SnapshotMock.createTable(SnapshotTestingUtils.java:675)
	at org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils$SnapshotMock.createSnapshot(SnapshotTestingUtils.java:653)
	at org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils$SnapshotMock.createSnapshot(SnapshotTestingUtils.java:647)
	at org.apache.hadoop.hbase.snapshot.SnapshotTestingUtils$SnapshotMock.createSnapshotV2(SnapshotTestingUtils.java:637)
	at org.apache.hadoop.hbase.snapshot.TestExportSnapshotNoCluster.testSnapshotWithRefsExportFileSystemState(TestExportSnapshotNoCluster.java:80)
{quote}

This seems that, somehow the rootdir filesystem is not LocalFileSystem, but on HDFS. I have not dig deeper why this happen since it's failing intermittently and I can not reproduce it locally. Since this is testing export snapshot tool without cluster, we can enforce it using LocalFileSystem; no breaking change.



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