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https://issues.apache.org/jira/browse/HBASE-22439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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sylvanas updated HBASE-22439:
-----------------------------
Labels: regionserver (was: )
> 重启hbase,特定节点有几率出现Num.Regions=0的情况
> ---------------------------------
>
> Key: HBASE-22439
> URL: https://issues.apache.org/jira/browse/HBASE-22439
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 1.4.9
> Environment: centos 6.9
> zk 4.6.11
> hadoop2.7.7
> hbase 1.4.9
> Reporter: sylvanas
> Priority: Major
> Labels: regionserver
>
> 每次启动hbase，特定节点（总磁盘是其他节点50%，但是占用率基本位置在25%左右）有几率出现Num.Regions=0的现象（出现几率大于50%），regions被其他节点分摊，整个过程master、regionserver均为发现任何有价值的日志。
> 最终regtion=0所在机器输入日志如下：
> {code:java}
> //代码占位符
> ...
> 2019-05-17 10:38:29,894 INFO [regionserver/gladslave3/10.86.10.103:16020]
> regionserver.ReplicationSourceManager: Current list of replicators:
> [gladslave4,16020,1558060698511, gladslave2,16020,1558060697919,
> gladslave3,16020,1558060700753, gladslave1,16020,1558060697694] other RSs:
> [gladslave4,16020,1558060698511, gladslave2,16020,1558060697919,
> gladslave3,16020,1558060700753, gladslave1,16020,1558060697694]
> 2019-05-17 10:38:29,936 INFO [SplitLogWorker-gladslave3:16020]
> regionserver.SplitLogWorker: SplitLogWorker gladslave3,16020,1558060700753
> starting
> 2019-05-17 10:38:29,936 INFO [regionserver/gladslave3/10.86.10.103:16020]
> regionserver.HeapMemoryManager: Starting HeapMemoryTuner chore.
> 2019-05-17 10:38:29,939 INFO [regionserver/gladslave3/10.86.10.103:16020]
> regionserver.HRegionServer: Serving as gladslave3,16020,1558060700753,
> RpcServer on gladslave3/10.86.10.103:16020, sessionid=0x401e4be60870092
> 2019-05-17 10:38:30,467 INFO [regionserver/gladslave3/10.86.10.103:16020]
> quotas.RegionServerQuotaManager: Quota support disabled
> 2019-05-17 10:38:35,699 INFO [regionserver/gladslave3/10.86.10.103:16020]
> wal.FSHLog: WAL configuration: blocksize=128 MB, rollsize=121.60 MB,
> prefix=gladslave3%2C16020%2C1558060700753, suffix=,
> logDir=hdfs://haservice/hbase/WALs/gladslave3,16020,1558060700753,
> archiveDir=hdfs://haservice/hbase/oldWALs
> 2019-05-17 10:38:37,122 INFO [regionserver/gladslave3/10.86.10.103:16020]
> wal.FSHLog: Slow sync cost: 369 ms, current pipeline: []
> 2019-05-17 10:38:37,123 INFO [regionserver/gladslave3/10.86.10.103:16020]
> wal.FSHLog: New WAL
> /hbase/WALs/gladslave3,16020,1558060700753/gladslave3%2C16020%2C1558060700753.1558060715708
> {code}
>
> 但是，修改日志级别为debug后，Num.Regions=0的情况再也没有发生过（重复启动测试20次为发现问题），但是，每次重启hbase，各regionserver的regions数量发生变化，并不是上一次停止时的数量。
>
>
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