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From Vladimir Rodionov <vladrodio...@gmail.com>
Subject Re: HBase Lease Exceptions
Date Wed, 04 Oct 2017 18:57:36 GMT
The first is just INFO message (no impact)

responseTooSlow indicates that your RS is under high load or experiences
large GC pauses. Check JvmPauseMonitor messages in RS log file.

On Wed, Oct 4, 2017 at 11:48 AM, alwin james <jamealwi@gmail.com> wrote:

> Hi Experts -
>
> I see lot of following messages in my regionserver logs:
>
> 2017-09-28 11:09:19,650 INFO  [regionserver/<hostname>.leaseChecker]
> regionserver.RSRpcServices: Scanner 420931 lease expired on region
> <Table-Details>|.,1484079498922.a9131abae13f8f056fb98275c778cfd9.
> 2017-09-28 11:09:19,650 INFO  [regionserver/<hostname>.leaseChecker]
> regionserver.RSRpcServices: Scanner 420930 lease expired on region
> <Table-Details>|.,1484079498922.a9131abae13f8f056fb98275c778cfd9.
>
> What does it mean? What is the impact of the above in my HBase operations?
>
> Also observed the following:
> 2017-09-28 11:09:20,586 WARN
> [B.defaultRpcServer.handler=3,queue=0,port=16020] ipc.RpcServer:
> (responseTooSlow):
> {"call":"Scan(org.apache.hadoop.hbase.protobuf.generated.ClientProtos$
> ScanRequest)","starttimems":1506611301596,"responsesize":
> 182,"method":"Scan","processingtimems":58990,"client":"<host>:64081","
> queuetimems":11473,"class":"HRegionServer"}
> 2017-09-28 11:09:21,305 WARN
> [B.defaultRpcServer.handler=28,queue=1,port=16020] ipc.RpcServer:
> (responseTooSlow):
> {"call":"Scan(org.apache.hadoop.hbase.protobuf.generated.ClientProtos$
> ScanRequest)","starttimems":1506611124846,"responsesize":
> 82,"method":"Scan","processingtimems":236458,"client":"<host2>:49965","
> queuetimems":20511,"class":"HRegionServer"}
>
> Regionserver is allocated 16GB of memory. We are using HBase 1.1.
> Anything specific I should look to understand what is happening? Any help
> is much appreciated.
>
> Regards,
> Alwin
>

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