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Posted to issues@hbase.apache.org by "ramkrishna.s.vasudevan (Updated) (JIRA)" <ji...@apache.org> on 2012/02/02 19:00:54 UTC
[jira] [Updated] (HBASE-5299)
CatalogTracker.getMetaServerConnection() checks for root server connection
and makes waitForMeta to go into infinite wait in region assignment flow.
[ https://issues.apache.org/jira/browse/HBASE-5299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ramkrishna.s.vasudevan updated HBASE-5299:
------------------------------------------
Summary: CatalogTracker.getMetaServerConnection() checks for root server connection and makes waitForMeta to go into infinite wait in region assignment flow. (was: CatalogTracker.getMetaServerConnection() checks for root server connection and makes waitForMeta to go into infinite loop in region assignment flow.)
> CatalogTracker.getMetaServerConnection() checks for root server connection and makes waitForMeta to go into infinite wait in region assignment flow.
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-5299
> URL: https://issues.apache.org/jira/browse/HBASE-5299
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Minor
>
> RSA, RS B and RS C are 3 region servers.
> RS A -> META
> RS B -> ROOT
> RS C -> NON META and NON ROOT
> Kill RS B and wait for server shutdown handler to start.
> Start RS B again before assigning ROOT to RS C.
> Now the cluster will try to assign new regions to RS B.
> But as ROOT is not yet assigned the OpenRegionHandler.updateMeta will fail to update the regions just because ROOT is not online.
> {code}
> a87109263ed53e67158377a149c5a7be from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
> 2012-01-30 16:23:25,126 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x1352e27539c0009 Attempting to transition node a87109263ed53e67158377a149c5a7be from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
> 2012-01-30 16:23:25,159 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x1352e27539c0009 Successfully transitioned node a87109263ed53e67158377a149c5a7be from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
> 2012-01-30 16:23:35,385 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x1352e27539c0009 Attempting to transition node a87109263ed53e67158377a149c5a7be from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
> 2012-01-30 16:23:35,449 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x1352e27539c0009 Successfully transitioned node a87109263ed53e67158377a149c5a7be from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
> 2012-01-30 16:24:16,666 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x1352e27539c0009 Attempting to transition node a87109263ed53e67158377a149c5a7be from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
> 2012-01-30 16:24:16,701 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x1352e27539c0009 Successfully transitioned node a87109263ed53e67158377a149c5a7be from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
> 2012-01-30 16:24:20,788 DEBUG org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler: Interrupting thread Thread[PostOpenDeployTasks:a87109263ed53e67158377a149c5a7be,5,main]
> 2012-01-30 16:24:30,699 WARN org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler: Exception running postOpenDeployTasks; region=a87109263ed53e67158377a149c5a7be
> org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException: Interrupted
> at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMetaServerConnectionDefault(CatalogTracker.java:439)
> at org.apache.hadoop.hbase.catalog.MetaEditor.updateRegionLocation(MetaEditor.java:142)
> at org.apache.hadoop.hbase.regionserver.HRegionServer.postOpenDeployTasks(HRegionServer.java:1382)
> at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler$PostOpenDeployTasksThread.run(OpenRegionHandler.java:221)
> {code}
> So we need to wait for TM to assign the regions again.
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