Vishal Khandelwal created HBASE-15219:
-----------------------------------------
Summary: Canary tool does not return non-zero exit when one of
region stuck state
Key: HBASE-15219
URL: https://issues.apache.org/jira/browse/HBASE-15219
Project: HBase
Issue Type: Bug
Affects Versions: 0.98.16
Reporter: Vishal Khandelwal
2016-02-05 12:24:18,571 ERROR [pool-2-thread-7] tool.Canary - read from region
CAN_1,\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,1454667477865.00e77d07b8defe10704417fb99aa0418.
column family 0 failed
org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after
attempts=2, exceptions:
Fri Feb 05 12:24:15 GMT 2016,
org.apache.hadoop.hbase.client.RpcRetryingCaller@54c9fea0,
org.apache.hadoop.hbase.NotServingRegionException:
org.apache.hadoop.hbase.NotServingRegionException: Region
CAN_1,\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00,1454667477865.00e77d07b8defe10704417fb99aa0418.
is not online on isthbase02-dnds1-3-crd.eng.sfdc.net,60020,1454669984738
at
org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:2852)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:4468)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:2984)
at
org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:31186)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2149)
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:104)
at
org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
at java.lang.Thread.run(Thread.java:745)
--------
-bash-4.1$ echo $?
0
Below code prints the error but it does sets/returns the exit code. Due to this
tool can't be integrated with nagios or other alerting.
Ideally it should return error for failures. as pre the documentation:
<snip>
This tool will return non zero error codes to user for collaborating with other
monitoring tools, such as Nagios. The error code definitions are:
private static final int USAGE_EXIT_CODE = 1;
private static final int INIT_ERROR_EXIT_CODE = 2;
private static final int TIMEOUT_ERROR_EXIT_CODE = 3;
private static final int ERROR_EXIT_CODE = 4;
</snip>
org.apache.hadoop.hbase.tool.Canary.RegionTask
public Void read() {
....
try {
table = connection.getTable(region.getTable());
tableDesc = table.getTableDescriptor();
} catch (IOException e) {
LOG.debug("sniffRegion failed", e);
sink.publishReadFailure(region, e);
...
return null;
}
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