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Posted to issues@hbase.apache.org by "frank luo (JIRA)" <ji...@apache.org> on 2017/06/30 16:15:00 UTC

[jira] [Commented] (HBASE-11236) Last flushed sequence id is ignored by ServerManager

    [ https://issues.apache.org/jira/browse/HBASE-11236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16070349#comment-16070349 ] 

frank luo commented on HBASE-11236:
-----------------------------------

I am on version 1.1.2, and a data loss bug landed me here. 

What happened to me is that a data loss has been identified on region cea9c145a49489e2ebbc683c9bc0b545. Then grepping on the regionId, I found nothing but below:

hbase-hbase-master-hqhd02nm01.pclc0.merkle.local.log.20:2017-06-30 05:47:20,237 WARN  [B.priority.fifo.QRpcServer.handler=2,queue=0,port=16000] master.ServerManager: RegionServer hqhd02dt031.pclc0.merkle.local,16020,1498275002632 indicates a last flushed sequence id (20717979) that is less than the previous last flushed sequence id (24918589) for region CR_CDI_CHHEQPROD_HASH_RECORD,f8886,1492710130131.cea9c145a49489e2ebbc683c9bc0b545. Ignoring.
hbase-hbase-master-hqhd02nm01.pclc0.merkle.local.log.20:2017-06-30 05:47:23,255 WARN  [B.priority.fifo.QRpcServer.handler=19,queue=1,port=16000] master.ServerManager: RegionServer hqhd02dt031.pclc0.merkle.local,16020,1498275002632 indicates a last flushed sequence id (20717979) that is less than the previous last flushed sequence id (24918589) for region CR_CDI_CHHEQPROD_HASH_RECORD,f8886,1492710130131.cea9c145a49489e2ebbc683c9bc0b545. Ignoring.
hbase-hbase-master-hqhd02nm01.pclc0.merkle.local.log.20:2017-06-30 05:47:26,273 WARN  [B.priority.fifo.QRpcServer.handler=0,queue=0,port=16000] master.ServerManager: RegionServer hqhd02dt031.pclc0.merkle.local,16020,1498275002632 indicates a last flushed sequence id (20717979) that is less than the previous last flushed sequence id (24918589) for region CR_CDI_CHHEQPROD_HASH_RECORD,f8886,1492710130131.cea9c145a49489e2ebbc683c9bc0b545. Ignoring.
hbase-hbase-master-hqhd02nm01.pclc0.merkle.local.log.20:2017-06-30 05:47:29,290 WARN  [B.priority.fifo.QRpcServer.handler=16,queue=0,port=16000] master.ServerManager: RegionServer hqhd02dt031.pclc0.merkle.local,16020,1498275002632 indicates a last flushed sequence id (20717979) that is less than the previous last flushed sequence id (24918589) for region CR_CDI_CHHEQPROD_HASH_RECORD,f8886,1492710130131.cea9c145a49489e2ebbc683c9bc0b545. Ignoring.
h

> Last flushed sequence id is ignored by ServerManager
> ----------------------------------------------------
>
>                 Key: HBASE-11236
>                 URL: https://issues.apache.org/jira/browse/HBASE-11236
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jimmy Xiang
>
> I got lots of error messages like this:
> {quote}
> 2014-05-22 08:58:59,793 DEBUG [RpcServer.handler=1,port=20020] master.ServerManager: RegionServer a2428.halxg.cloudera.com,20020,1400742071109 indicates a last flushed sequence id (numberOfStores=9, numberOfStorefiles=2, storefileUncompressedSizeMB=517, storefileSizeMB=517, compressionRatio=1.0000, memstoreSizeMB=0, storefileIndexSizeMB=0, readRequestsCount=0, writeRequestsCount=0, rootIndexSizeKB=34, totalStaticIndexSizeKB=381, totalStaticBloomSizeKB=0, totalCompactingKVs=0, currentCompactedKVs=0, compactionProgressPct=NaN) that is less than the previous last flushed sequence id (605446) for region IntegrationTestBigLinkedList, �A��*t�^FU�2��0,1400740489477.a44d3e309b5a7e29355f6faa0d3a4095. Ignoring.
> {quote}
> RegionLoad.toString doesn't print out the last flushed sequence id passed in. Why is it less than the previous one?



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