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From Rajeshkumar J <rajeshkumarit8...@gmail.com>
Subject Re: Lease exception
Date Thu, 22 Dec 2016 08:51:17 GMT
Also there is a solution what i have found from hbase user guide that
hbase.rpc.timeout must be greater than hbase.client.scanner.timeout.period.
How these two properties plays a part in the above exception. Please can
anyone explain?

On Wed, Dec 21, 2016 at 9:39 PM, Rajeshkumar J <rajeshkumarit8292@gmail.com>
wrote:

> I am using hbase version 1.1.1
> Also I didn't understand something here. Whenever a scanner.next() is
> called it needs to return rows(based on caching value) within leasing
> period or else scanner client will be closed eventually throwing this
> exception. Correct me as I didn't get the clear understanding of this issue
>
> On Wed, Dec 21, 2016 at 7:31 PM, Ted Yu <yuzhihong@gmail.com> wrote:
>
>> Which hbase release are you using ?
>>
>> There is heartbeat support when scanning.
>> Looks like the version you use doesn't have this support.
>>
>> Cheers
>>
>> > On Dec 21, 2016, at 4:02 AM, Rajeshkumar J <rajeshkumarit8292@gmail.com>
>> wrote:
>> >
>> > Hi,
>> >
>> >   Thanks for the reply. I have properties as below
>> >
>> > <property>
>> >    <name>hbase.regionserver.lease.period</name>
>> >    <value>900000</value>
>> >  </property>
>> >  <property>
>> >    <name>hbase.rpc.timeout</name>
>> >    <value>900000>/value>
>> >  </property>
>> >
>> >
>> > Correct me If I am wrong.
>> >
>> > I know hbase.regionserver.lease.period, which says how long a scanner
>> > lives between calls to scanner.next().
>> >
>> > As far as I understand when scanner.next() is called it will fetch no
>> > of rows as in *hbase.client.scanner.caching. *When this fetching
>> > process takes more than lease period it will close the scanner object.
>> > so this exception occuring?
>> >
>> >
>> > Thanks,
>> >
>> > Rajeshkumar J
>> >
>> >
>> >
>> > On Wed, Dec 21, 2016 at 5:07 PM, Richard Startin <
>> richardstartin@outlook.com
>> >> wrote:
>> >
>> >> It means your lease on a region server has expired during a call to
>> >> resultscanner.next(). This happens on a slow call to next(). You can
>> either
>> >> embrace it or "fix" it by making sure hbase.rpc.timeout exceeds
>> >> hbase.regionserver.lease.period.
>> >>
>> >> https://richardstartin.com
>> >>
>> >> On 21 Dec 2016, at 11:30, Rajeshkumar J <rajeshkumarit8292@gmail.com<
>> >> mailto:rajeshkumarit8292@gmail.com>> wrote:
>> >>
>> >> Hi,
>> >>
>> >>  I have faced below issue in our production cluster
>> >>
>> >> org.apache.hadoop.hbase.regionserver.LeaseException:
>> >> org.apache.hadoop.hbase.regionserver.LeaseException: lease '166881'
>> does
>> >> not exist
>> >> at org.apache.hadoop.hbase.regionserver.Leases.
>> >> removeLease(Leases.java:221)
>> >> at org.apache.hadoop.hbase.regionserver.Leases.
>> >> cancelLease(Leases.java:206)
>> >> at
>> >> org.apache.hadoop.hbase.regionserver.RSRpcServices.
>> >> scan(RSRpcServices.java:2491)
>> >> at
>> >> org.apache.hadoop.hbase.protobuf.generated.ClientProtos$
>> ClientService$2.
>> >> callBlockingMethod(ClientProtos.java:32205)
>> >> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2114)
>> >> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:101)
>> >> at
>> >> org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExec
>> utor.java:130)
>> >> at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:107)
>> >> at java.lang.Thread.run(Thread.java:744)
>> >>
>> >>
>> >> Can any one explain what is lease exception
>> >>
>> >> Thanks,
>> >> Rajeshkumar J
>> >>
>>
>
>

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