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https://issues.apache.org/jira/browse/HBASE-14317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14717400#comment-14717400
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Elliott Clark commented on HBASE-14317:
---------------------------------------
About an hour before I know that everything was locked up I see this:
{code}
15/08/27 02:53:18 WARN wal.FSHLog: Could not append. Requesting close of wal
java.net.SocketTimeoutException: 70000 millis timeout while waiting for channel
to be ready for read. ch : java.nio.channels.SocketChannel[connected
local=/10.210.81.27:60319 remote=/10.210.81.27:50010]
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:164)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:118)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at
org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:2201)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.transfer(DFSOutputStream.java:1142)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:1112)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1253)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:1004)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:548)
15/08/27 02:53:18 ERROR wal.FSHLog: Error syncing, request close of wal
java.net.SocketTimeoutException: 70000 millis timeout while waiting for channel
to be ready for read. ch : java.nio.channels.SocketChannel[connected
local=/10.210.81.27:60319 remote=/10.210.81.27:50010]
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:164)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:118)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at
org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:2201)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.transfer(DFSOutputStream.java:1142)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:1112)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1253)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:1004)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:548)
15/08/27 02:53:18 WARN wal.FSHLog: Could not append. Requesting close of wal
java.net.SocketTimeoutException: 70000 millis timeout while waiting for channel
to be ready for read. ch : java.nio.channels.SocketChannel[connected
local=/10.210.81.27:60319 remote=/10.210.81.27:50010]
at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:164)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:161)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:131)
at
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:118)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at java.io.FilterInputStream.read(FilterInputStream.java:83)
at
org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:2201)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.transfer(DFSOutputStream.java:1142)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.addDatanode2ExistingPipeline(DFSOutputStream.java:1112)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.setupPipelineForAppendOrRecovery(DFSOutputStream.java:1253)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.processDatanodeError(DFSOutputStream.java:1004)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:548)
{code}
Where append and sync errors are repeated several times.
> Stuck FSHLog: bad disk (HDFS-8960) and can't roll WAL
> -----------------------------------------------------
>
> Key: HBASE-14317
> URL: https://issues.apache.org/jira/browse/HBASE-14317
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.1.1
> Reporter: stack
> Priority: Critical
> Attachments: [Java] RS stuck on WAL sync to a dead DN -
> Pastebin.com.html, raw.php, subset.of.rs.log
>
>
> hbase-1.1.1 and hadoop-2.7.1
> We try to roll logs because can't append (See HDFS-8960) but we get stuck.
> See attached thread dump and associated log. What is interesting is that
> syncers are waiting to take syncs to run and at same time we want to flush so
> we are waiting on a safe point but there seems to be nothing in our ring
> buffer; did we go to roll log and not add safe point sync to clear out
> ringbuffer?
> Needs a bit of study. Try to reproduce.
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