[ https://issues.apache.org/jira/browse/ACCUMULO-3783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
William Slacum updated ACCUMULO-3783: ------------------------------------- Assignee: Josh Elser (was: William Slacum) > Unexpected Filesystem Closed exceptions > --------------------------------------- > > Key: ACCUMULO-3783 > URL: https://issues.apache.org/jira/browse/ACCUMULO-3783 > Project: Accumulo > Issue Type: Bug > Components: master, start, tserver > Affects Versions: 1.7.0 > Reporter: Josh Elser > Assignee: Josh Elser > Fix For: 1.7.1, 1.8.0 > > Attachments: ACCUMULO-3783.patch > > > Noticed this in testing 1.7.0 on my laptop tonight. Started two tservers, one > continuous ingest client and would kill/restart one of the tservers > occasionally. > {noformat} > Failed to close map file > java.io.IOException: Filesystem closed > at > org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:795) > at > org.apache.hadoop.hdfs.DFSInputStream.close(DFSInputStream.java:629) > at java.io.FilterInputStream.close(FilterInputStream.java:181) > at > org.apache.accumulo.core.file.blockfile.impl.CachableBlockFile$Reader.close(CachableBlockFile.java:409) > at > org.apache.accumulo.core.file.rfile.RFile$Reader.close(RFile.java:921) > at > org.apache.accumulo.tserver.tablet.Compactor.compactLocalityGroup(Compactor.java:391) > at > org.apache.accumulo.tserver.tablet.Compactor.call(Compactor.java:214) > at > org.apache.accumulo.tserver.tablet.Tablet._majorCompact(Tablet.java:1981) > at > org.apache.accumulo.tserver.tablet.Tablet.majorCompact(Tablet.java:2098) > at > org.apache.accumulo.tserver.tablet.CompactionRunner.run(CompactionRunner.java:44) > at > org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at > org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35) > at java.lang.Thread.run(Thread.java:745) > null > java.nio.channels.ClosedChannelException > at > org.apache.hadoop.hdfs.DFSOutputStream.checkClosed(DFSOutputStream.java:1622) > at > org.apache.hadoop.fs.FSOutputSummer.write(FSOutputSummer.java:104) > at > org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:58) > at java.io.DataOutputStream.write(DataOutputStream.java:107) > at > org.apache.accumulo.core.file.rfile.bcfile.SimpleBufferedOutputStream.flushBuffer(SimpleBufferedOutputStream.java:39) > at > org.apache.accumulo.core.file.rfile.bcfile.SimpleBufferedOutputStream.flush(SimpleBufferedOutputStream.java:68) > at > org.apache.hadoop.io.compress.CompressionOutputStream.flush(CompressionOutputStream.java:69) > at > org.apache.accumulo.core.file.rfile.bcfile.Compression$FinishOnFlushCompressionStream.flush(Compression.java:66) > at > java.io.BufferedOutputStream.flush(BufferedOutputStream.java:141) > at > org.apache.accumulo.core.file.rfile.bcfile.BCFile$Writer$WBlockState.finish(BCFile.java:233) > at > org.apache.accumulo.core.file.rfile.bcfile.BCFile$Writer$BlockAppender.close(BCFile.java:320) > at > org.apache.accumulo.core.file.blockfile.impl.CachableBlockFile$BlockWrite.close(CachableBlockFile.java:121) > at > org.apache.accumulo.core.file.rfile.RFile$Writer.closeBlock(RFile.java:398) > at > org.apache.accumulo.core.file.rfile.RFile$Writer.append(RFile.java:382) > at > org.apache.accumulo.tserver.tablet.Compactor.compactLocalityGroup(Compactor.java:356) > at > org.apache.accumulo.tserver.tablet.Compactor.call(Compactor.java:214) > at > org.apache.accumulo.tserver.tablet.Tablet._majorCompact(Tablet.java:1981) > at > org.apache.accumulo.tserver.tablet.Tablet.majorCompact(Tablet.java:2098) > at > org.apache.accumulo.tserver.tablet.CompactionRunner.run(CompactionRunner.java:44) > at > org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at > org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35) > at java.lang.Thread.run(Thread.java:745) > Filesystem closed > java.io.IOException: Filesystem closed > at > org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:795) > at org.apache.hadoop.hdfs.DFSClient.delete(DFSClient.java:1927) > at > org.apache.hadoop.hdfs.DistributedFileSystem$12.doCall(DistributedFileSystem.java:638) > at > org.apache.hadoop.hdfs.DistributedFileSystem$12.doCall(DistributedFileSystem.java:634) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.delete(DistributedFileSystem.java:634) > at > org.apache.accumulo.server.fs.VolumeManagerImpl.deleteRecursively(VolumeManagerImpl.java:193) > at > org.apache.accumulo.tserver.tablet.Compactor.call(Compactor.java:255) > at > org.apache.accumulo.tserver.tablet.Tablet._majorCompact(Tablet.java:1981) > at > org.apache.accumulo.tserver.tablet.Tablet.majorCompact(Tablet.java:2098) > at > org.apache.accumulo.tserver.tablet.CompactionRunner.run(CompactionRunner.java:44) > at > org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at > org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35) > at java.lang.Thread.run(Thread.java:745) > MinC failed (null) to create > hdfs://localhost:8020/accumulo17/tables/2/t-0000011/F00000yd.rf_tmp retrying > ... > MajC Failed, extent = 2;5;45 > java.io.IOException: Filesystem closed > at > org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:795) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1651) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1593) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:397) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:393) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:393) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:337) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:908) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:889) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:126) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:106) > at > org.apache.accumulo.core.file.DispatchingFileFactory.openWriter(DispatchingFileFactory.java:78) > at > org.apache.accumulo.tserver.tablet.Compactor.call(Compactor.java:192) > at > org.apache.accumulo.tserver.tablet.Tablet._majorCompact(Tablet.java:1981) > at > org.apache.accumulo.tserver.tablet.Tablet.majorCompact(Tablet.java:2098) > at > org.apache.accumulo.tserver.tablet.CompactionRunner.run(CompactionRunner.java:44) > at > org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at > org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35) > at java.lang.Thread.run(Thread.java:745) > MajC Failed, extent = 2;45;4 > java.io.IOException: Filesystem closed > at > org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:795) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1651) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1593) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:397) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:393) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:393) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:337) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:908) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:889) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:126) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:106) > at > org.apache.accumulo.core.file.DispatchingFileFactory.openWriter(DispatchingFileFactory.java:78) > at > org.apache.accumulo.tserver.tablet.Compactor.call(Compactor.java:192) > at > org.apache.accumulo.tserver.tablet.Tablet._majorCompact(Tablet.java:1981) > at > org.apache.accumulo.tserver.tablet.Tablet.majorCompact(Tablet.java:2098) > at > org.apache.accumulo.tserver.tablet.CompactionRunner.run(CompactionRunner.java:44) > at > org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at > org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35) > at java.lang.Thread.run(Thread.java:745) > MajC Failed, extent = 2;35;3 > java.io.IOException: Filesystem closed > at > org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:795) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1651) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1593) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:397) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:393) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:393) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:337) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:908) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:889) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:126) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:106) > at > org.apache.accumulo.core.file.DispatchingFileFactory.openWriter(DispatchingFileFactory.java:78) > at > org.apache.accumulo.tserver.tablet.Compactor.call(Compactor.java:192) > at > org.apache.accumulo.tserver.tablet.Tablet._majorCompact(Tablet.java:1981) > at > org.apache.accumulo.tserver.tablet.Tablet.majorCompact(Tablet.java:2098) > at > org.apache.accumulo.tserver.tablet.CompactionRunner.run(CompactionRunner.java:44) > at > org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at > org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35) > at java.lang.Thread.run(Thread.java:745) > Filesystem closed > java.io.IOException: Filesystem closed > at > org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:795) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1651) > at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1593) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:397) > at > org.apache.hadoop.hdfs.DistributedFileSystem$6.doCall(DistributedFileSystem.java:393) > at > org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:393) > at > org.apache.hadoop.hdfs.DistributedFileSystem.create(DistributedFileSystem.java:337) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:908) > at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:889) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:126) > at > org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:106) > at > org.apache.accumulo.core.file.DispatchingFileFactory.openWriter(DispatchingFileFactory.java:78) > at > org.apache.accumulo.tserver.tablet.Compactor.call(Compactor.java:192) > at > org.apache.accumulo.tserver.tablet.Tablet._majorCompact(Tablet.java:1981) > at > org.apache.accumulo.tserver.tablet.Tablet.majorCompact(Tablet.java:2098) > at > org.apache.accumulo.tserver.tablet.CompactionRunner.run(CompactionRunner.java:44) > at > org.apache.htrace.wrappers.TraceRunnable.run(TraceRunnable.java:57) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at > org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35) > at java.lang.Thread.run(Thread.java:745) > {noformat} > This reminded me of something that [~bills] ran into and tried to get to the > bottom of. > My hunch was that somethign registered a shutdown hook which closed the > filesystem object. I also remembered that FileSystem instances are cached. > Bill pointed out that he thought this might still be a VFS related issue > (despite having nothign to do with VFS). After I noticed a shutdown hook in > our VFS usage, I think it's unsafe to be sharing FileSystem instances with > VFS code that might also be used by Accumulo for important things like > writing to files. > We should get a unique FileSystem instance to provide to any VFS code. We can > do this by: > # Setting {{fs.hdfs.impl.disable.cache}} in the Hadoop Configuration we > provide to {{FileSystem.get(Configuration)}} > # Call {{FileSystem.newInstance(URI, Configuration)}}. > Either seem to do what we want -- the latter possibly having more reliable > semantics than just a configuration value. -- This message was sent by Atlassian JIRA (v6.3.4#6332)