In fact at client the rpc timeout of scan request is also hbase.client.scanner.timeout.period which replaces the deprecated hbase.regionserver.lease.period.
Your code that throws LeaseException has been removed by HBASE-16604, maybe you can try to upgrade your cluster to 1.1.7? Your client can also upgrade to 1.1.7 which will ignore UnknowScannerException and retry when the lease is expired at server. Thanks, Phil 2016-12-22 16:51 GMT+08:00 Rajeshkumar J <[email protected]>: > 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 < > [email protected]> > 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 <[email protected]> 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 < > [email protected]> > >> 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 < > >> [email protected] > >> >> 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 <[email protected] > < > >> >> mailto:[email protected]>> 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 > >> >> > >> > > > > >
