Qiang Tian created HBASE-11146:
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Summary: HMaster instantiates both MasterCoprocessorHost and
RegionServerCoprocessorHost
Key: HBASE-11146
URL: https://issues.apache.org/jira/browse/HBASE-11146
Project: HBase
Issue Type: Bug
Components: Coprocessors
Affects Versions: 0.99.0
Reporter: Qiang Tian
Assignee: Qiang Tian
See HBASE-11096.
in 0.99, HRegionServer is the base class of HMaster.
master and regionserver share the same run method, the master instantiates both
MasterCoprocessorHost and RegionServerCoprocessorHost
below is example logs, a coprocessor is start/stop twice--one is for real
regionserver, the other is for the RegionServerCoprocessorHost in master.
2014-05-08 00:33:51,632 INFO [M:0;bdvm135:36021]
coprocessor.TestCoprocessorStop$FooCoprocessor(66): st
art coprocessor on regionserver
2014-05-08 00:33:51,633 INFO [RS:0;bdvm135:47513]
coprocessor.TestCoprocessorStop$FooCoprocessor(66): s
tart coprocessor on regionserver
...
2014-05-08 00:34:03,166 INFO [main] regionserver.HRegionServer(1624): call
stack of stop
java.io.IOException
at
org.apache.hadoop.hbase.regionserver.HRegionServer.stop(HRegionServer.java:1624)
at
org.apache.hadoop.hbase.master.ServerManager.shutdownCluster(ServerManager.java:975)
at org.apache.hadoop.hbase.master.HMaster.shutdown(HMaster.java:1623)
at org.apache.hadoop.hbase.util.JVMClusterUtil.shutdown(JVMClusterUtil.java:256)
at
org.apache.hadoop.hbase.LocalHBaseCluster.shutdown(LocalHBaseCluster.java:437)
at org.apache.hadoop.hbase.MiniHBaseCluster.shutdown(MiniHBaseCluster.java:519)
at
org.apache.hadoop.hbase.coprocessor.TestCoprocessorStop.testStopped(TestCoprocessorStop.java:
114)
...
2014-05-08 00:34:03,215 INFO [main] regionserver.HRegionServer(1629): rsHost
code path called
2014-05-08 00:34:03,228 DEBUG [main] coprocessor.CoprocessorHost(258): Stop
coprocessor org.apache.hadoo
p.hbase.coprocessor.TestCoprocessorStop$FooCoprocessor
2014-05-08 00:34:03,462 INFO [main]
coprocessor.TestCoprocessorStop$FooCoprocessor(88): create file hdf
s://localhost:8155/user/tianq/test-data/f0c9423c-e505-4feb-907e-c7bd6e16545b/regionserver1399534399680
r
eturn rc true
...
2014-05-08 00:34:03,482 INFO [main] regionserver.HRegionServer(1624): call
stack of stop
java.io.IOException
at
org.apache.hadoop.hbase.regionserver.HRegionServer.stop(HRegionServer.java:1624)
at org.apache.hadoop.hbase.util.JVMClusterUtil.shutdown(JVMClusterUtil.java:264)
at
org.apache.hadoop.hbase.LocalHBaseCluster.shutdown(LocalHBaseCluster.java:437)
at org.apache.hadoop.hbase.MiniHBaseCluster.shutdown(MiniHBaseCluster.java:519)
at
org.apache.hadoop.hbase.coprocessor.TestCoprocessorStop.testStopped(TestCoprocessorStop.java:
114)
2014-05-08 00:34:03,485 INFO [main] regionserver.HRegionServer(1629): rsHost
code path called
2014-05-08 00:34:03,485 DEBUG [main] coprocessor.CoprocessorHost(258): Stop
coprocessor org.apache.hadoo
p.hbase.coprocessor.TestCoprocessorStop$FooCoprocessor
2014-05-08 00:34:03,493 INFO [main]
coprocessor.TestCoprocessorStop$FooCoprocessor(88): create file hdf
s://localhost:8155/user/tianq/test-data/f0c9423c-e505-4feb-907e-c7bd6e16545b/regionserver1399534399680
r
eturn rc false
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