Split Region crash if region is still offline after a previous split
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Key: HBASE-5681
URL: https://issues.apache.org/jira/browse/HBASE-5681
Project: HBase
Issue Type: Bug
Components: regionserver, zookeeper
Affects Versions: 0.92.1, 0.96.0, 0.94.1
Reporter: Matteo Bertozzi
Assignee: Matteo Bertozzi
Priority: Minor
I've a script that starts hbase and a couple of region servers in distributed
mode (hbase.cluster.distributed = true) due to HBASE-5666 I need a sleep to
ensure that rs are up.
{code}
$HBASE_HOME/bin/start-hbase.sh
sleep 5 # bug HBASE-5666 rs doesn't retry if znode is not available.
$HBASE_HOME/bin/local-regionservers.sh start 1 2 3
{code}
Once hbase is started I run an hbase shell script file (see below)
everything is fine till last split operation.
{code}
# $HBASE_HOME/bin/hbase shell test.hbase
# test.hbase
create 'bugtb-t1', 'tcf11', 'tcf12'
create 'bugtb-t2', 'tcf11', 'tcf12'
put 'bugtb-t1', '10', 'tcf11:c1', 'a'
put 'bugtb-t1', '15', 'tcf11:c2', 'b'
put 'bugtb-t1', '20', 'tcf11:c1', 'c'
put 'bugtb-t1', '30', 'tcf11:c2', 'd'
put 'bugtb-t1', '35', 'tcf11:c1', 'e'
put 'bugtb-t1', '40', 'tcf11:c2', 'f'
put 'bugtb-t2', '10', 'tcf11:c1', 'a'
put 'bugtb-t2', '15', 'tcf11:c2', 'b'
put 'bugtb-t2', '20', 'tcf11:c1', 'c'
put 'bugtb-t2', '30', 'tcf11:c2', 'd'
put 'bugtb-t2', '35', 'tcf11:c1', 'e'
put 'bugtb-t2', '40', 'tcf11:c2', 'f'
split 'bugtb-t1', '20'
split 'bugtb-t2', '20'
split 'bugtb-t1', '40'
{code}
During the last split the region is still offline, and you get an exception....
(If you sleep a bit before executing the last split, everything is fine)
{code}
ERROR: org.apache.hadoop.ipc.RemoteException:
org.apache.hadoop.hbase.NotServingRegionException: Region is not online:
bugtb-t1,,1333134892936.4e14c2cf4293156d5b099dc3d5c44890.
at
org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3123)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.splitRegion(HRegionServer.java:2926)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:366)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1383)
{code}
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