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From Ted Yu <yuzhih...@gmail.com>
Subject Re: WrongRegionException
Date Mon, 29 Jan 2018 16:14:41 GMT
w.r.t. region split, do you verify that the new rowkey is in the same
region as the rowkey from incoming Put ?

If not, there is a chance that the new rowkey is in different region which
is going thru split.

FYI

On Mon, Jan 29, 2018 at 6:40 AM, Yang Zhang <zhang.yang.dm@gmail.com> wrote:

> Both are the same question.
> I want to prevent the incoming puts and then copy it as one or more new
> puts with different rowkey.
> So when there is only one region, my rowkey will belong to it. But when
> region splited, some rowkeys may not belong to the new region.
> I used to thought HBase will stop new coming puts, finish all of the puts
> in the batch, and then try to split.
> But this maybe not right according to the exception that I got.
>
> BTY , It seems that I can't add put
> to MiniBatchOperationInProgress<Mutation> miniBatchOp. There are only some
> functions for get.
>
> Thank you very much for your help
>
> 2018-01-29 18:46 GMT+08:00 Anoop John <anoop.hbase@gmail.com>:
>
> > Another related Q was also there..  Can you tell the actual
> > requirement?  So the incoming puts you want to change the RKs of that?
> > Or you want to insert those as well as some new cells with a changed
> > RK?
> >
> > -Anoop-
> >
> > On Mon, Jan 29, 2018 at 3:49 PM, Yang Zhang <zhang.yang.dm@gmail.com>
> > wrote:
> > > Hello Everyone
> > >
> > >         I am using coprocesser to prevent the normal put and replace it
> > > with another rowkey, The method is HRegion.put(). It works fine, but
> when
> > > the region splited, There will be an WrongRegionException.
> > >
> > > 2018-01-28 09:32:51,528 WARN
> > > [B.DefaultRpcServer.handler=21,queue=3,port=60020]
> regionserver.HRegion:
> > > Failed getting lock in batch put,
> > > row=\xF0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0F\x10\xC5r
> > > org.apache.hadoop.hbase.regionserver.WrongRegionException: Requested
> row
> > > out of range for row lock on HRegion
> > > GISdoop_GeoKey,,1517085124215.341534e84727245f1c67f345c3e467ac.,
> > > startKey='', getEndKey()='\xE6G8\x00\x00\x00\x00\x00\x00\x00\x00\x00',
> > > row='\xF0\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0F\x10\xC5r'
> > > at org.apache.hadoop.hbase.regionserver.HRegion.checkRow(
> > HRegion.java:4677)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> > getRowLock(HRegion.java:4695)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> > doMiniBatchMutation(HRegion.java:2786)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> > batchMutate(HRegion.java:2653)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> > batchMutate(HRegion.java:2589)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> doBatchMutate(HRegion.java:
> > 3192)
> > > at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:2459)
> > > at site.luoyu.Core.Index.JavaTreeMap.insertPoint(JavaTreeMap.java:287)
> > > at site.luoyu.Core.Index.JavaTreeMap.insertRecord(
> JavaTreeMap.java:256)
> > > at site.luoyu.Core.Observer.IndexCopressor.prePut(
> > IndexCopressor.java:130)
> > > at
> > > org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.prePut(
> > RegionCoprocessorHost.java:1122)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> doPreMutationHook(HRegion.
> > java:2674)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> > batchMutate(HRegion.java:2649)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> > batchMutate(HRegion.java:2589)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegion.
> > batchMutate(HRegion.java:2593)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegionServer.
> > doBatchOp(HRegionServer.java:4402)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegionServer.
> > doNonAtomicRegionMutation(HRegionServer.java:3584)
> > > at
> > > org.apache.hadoop.hbase.regionserver.HRegionServer.
> > multi(HRegionServer.java:3474)
> > > at
> > > org.apache.hadoop.hbase.protobuf.generated.
> ClientProtos$ClientService$2.
> > callBlockingMethod(ClientProtos.java:30000)
> > > at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2078)
> > > at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:108)
> > > at
> > > org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(
> > RpcExecutor.java:114)
> > > at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:94)
> > > at java.lang.Thread.run(Thread.java:745)
> > >
> > > It is said rowkey is out of region's bound.  This Exception is logged
> in
> > > regionserver's log as an warning , I can't catch  and handle it.
> > >
> > > According the source code,
> > > RowLock rowLock = null;
> > > try {
> > >   rowLock = getRowLock(mutation.getRow(), shouldBlock);
> > > } catch (IOException ioe) {
> > >   LOG.warn("Failed getting lock in batch put, row="
> > >     + Bytes.toStringBinary(mutation.getRow()), ioe);
> > > }
> > >
> > > HBase just cache and log this exception , I guess it even didn't remove
> > it
> > > from the batch. So I got so many Exception log  and can't put data
> > anymore.
> > >
> > > Why HBase handle this WrongRegionException like this? Anyone can help?
> > > Thanks verymuch.
> >
>

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