Unable to close file because the last block does not have enough number of replicas. about fluent-plugin-webhdfs HOT 12 CLOSED

I met the same error , I have to restart all hdfs and fluentd then after a day the error come back. In my system the datanode and namenode run in one server. Is it the problem for above error ?

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Original post seems to write the same log file from several servers.
About 2nd comment, one datanode cannot satisfy replication factor. So it's configuration problem of hadoop clusters.

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I've gotten the error to, after increasing the namenode dfs.namenode.handler.count attribute. Did you ever resolve this?

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@tagomoris How to fix the problem about configuration? Please show the method.

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Fixed, after i change the value of "dfs.replication", thx 👍

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👍

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@asdf2014 @loveshell @tagomoris

I got same error.How do you fixed it?
My cluster default vlaue "dfs.replication=3" in hdfs-site.xml.
If I set "dfs.replication=1",I am afraid there will be the risk of losing data.

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I am facing the same issue. Can anyone please help me.

2018-02-20 07:58:22,428 WARN [Thread-12515] hdfs.DFSClient: DataStreamer Exception
java.lang.NullPointerException
at sun.nio.ch.EPollArrayWrapper.isEventsHighKilled(EPollArrayWrapper.java:174)
at sun.nio.ch.EPollArrayWrapper.setUpdateEvents(EPollArrayWrapper.java:190)
at sun.nio.ch.EPollArrayWrapper.add(EPollArrayWrapper.java:239)
at sun.nio.ch.EPollSelectorImpl.implRegister(EPollSelectorImpl.java:178)
at sun.nio.ch.SelectorImpl.register(SelectorImpl.java:132)
at java.nio.channels.spi.AbstractSelectableChannel.register(AbstractSelectableChannel.java:212)
at java.nio.channels.SelectableChannel.register(SelectableChannel.java:280)
at org.apache.hadoop.net.SocketIOWithTimeout$SelectorPool.select(SocketIOWithTimeout.java:334)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:203)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529)
at org.apache.hadoop.hdfs.DFSOutputStream.createSocketForPipeline(DFSOutputStream.java:1526)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1328)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1281)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:526)

2018-02-20 07:59:24,521 WARN [rs()-flush-proc-pool1578-thread-1]
regionserver.HStore: Failed flushing store file, retrying num=0
java.io.IOException: Unable to close file because the last block does not have enough number of replicas.
at org.apache.hadoop.hdfs.DFSOutputStream.completeFile(DFSOutputStream.java:2151)
at org.apache.hadoop.hdfs.DFSOutputStream.close(DFSOutputStream.java:2119)
at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.close(FSDataOutputStream.java:72)
at org.apache.hadoop.fs.FSDataOutputStream.close(FSDataOutputStream.java:106)
at org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.finishClose(AbstractHFileWriter.java:248)
at org.apache.hadoop.hbase.io.hfile.HFileWriterV3.finishClose(HFileWriterV3.java:133)
at org.apache.hadoop.hbase.io.hfile.HFileWriterV2.close(HFileWriterV2.java:380)
at org.apache.hadoop.hbase.regionserver.StoreFile$Writer.close(StoreFile.java:1113)
at org.apache.hadoop.hbase.regionserver.StoreFlusher.finalizeWriter(StoreFlusher.java:72)
at org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:84)
at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:936)
at org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2413)
at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2456)
at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2186)
at org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2148)
at org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2039)
at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:1965)
at org.apache.hadoop.hbase.procedure.flush.FlushTableSubprocedure$RegionFlushTask.call(FlushTableSubprocedure.java:68)
at org.apache.hadoop.hbase.procedure.flush.FlushTableSubprocedure$RegionFlushTask.call(FlushTableSubprocedure.java:56)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)

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Same issue, can someone help me?

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Same issue

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Same error too, anyone has some solutions for it ? please help me

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