Master - dont shut down cluster if you run into a fatal error
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Key: HBASE-3032
URL: https://issues.apache.org/jira/browse/HBASE-3032
Project: HBase
Issue Type: Bug
Affects Versions: 0.89.20100621
Reporter: ryan rawson
Priority: Blocker
Fix For: 0.90.0
Saw this message:
2010-09-22 13:10:03,547 FATAL org.apache.hadoop.hbase.master.MetaScanner:
Caught error. Starting shutdown.
java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:597)
at
org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:328)
at
org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:857)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:725)
at
org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:252)
at $Proxy1.openScanner(Unknown Source)
at
org.apache.hadoop.hbase.master.BaseScanner.scanRegion(BaseScanner.java:182)
at
org.apache.hadoop.hbase.master.MetaScanner.scanOneMetaRegion(MetaScanner.java:73)
at
org.apache.hadoop.hbase.master.MetaScanner.maintenanceScan(MetaScanner.java:129)
at
org.apache.hadoop.hbase.master.BaseScanner.chore(BaseScanner.java:156)
at org.apache.hadoop.hbase.Chore.run(Chore.java:68)
At this point the regionservers were instructed to exit, which caused more
problems than if the master just terminated itself.
This would prevent a backup master from picking up since the cluster is
terminating!
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