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https://issues.apache.org/jira/browse/HBASE-26411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17482633#comment-17482633
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Viraj Jasani edited comment on HBASE-26411 at 1/26/22, 5:29 PM:
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The only difference (in case it matters) with my recent test env compared to
previously used env (where things were all good) is that we don't have
colocation of datanodes with regionservers.
was (Author: vjasani):
The only difference (in case it matters) with my test env compared to
previously used env is, we don't have colocation of datanodes with
regionservers.
> Wal do not roll and write a big wal
> ------------------------------------
>
> Key: HBASE-26411
> URL: https://issues.apache.org/jira/browse/HBASE-26411
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.4.8
> Reporter: Lijin Bin
> Priority: Major
>
> We see wal have long time to roll and write a big wal which has 3TB.
> And according to the jstack we can see the wal create hang.
> {code}
> "regionserver/11.149.48.227:60020.logRoller" #667 daemon prio=5 os_prio=0
> cpu=116916.81ms elapsed=447455.26s tid=0x00007fa35d231000 nid=0xbdd2 waiting
> on condition [0x00007f79c7407000]
> java.lang.Thread.State: WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00007f9f10df5158> (a
> java.util.concurrent.CompletableFuture$Signaller)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
> at
> java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1707)
> at
> java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3323)
> at
> java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1742)
> at
> java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
> at
> org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter.write(AsyncProtobufLogWriter.java:178)
> at
> org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter.writeMagicAndWALHeader(AsyncProtobufLogWriter.java:191)
> at
> org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufLogWriter.init(AbstractProtobufLogWriter.java:170)
> at
> org.apache.hadoop.hbase.wal.AsyncFSWALProvider.createAsyncWriter(AsyncFSWALProvider.java:113)
> at
> org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.createWriterInstance(AsyncFSWAL.java:615)
> at
> org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.createWriterInstance(AsyncFSWAL.java:126)
> at
> org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL.rollWriter(AbstractFSWAL.java:763)
> at
> org.apache.hadoop.hbase.regionserver.LogRoller.run(LogRoller.java:184)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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