You have more than one increment for the same key in one batch? On Wed, Sep 17, 2014 at 12:33 PM, Vinay Gupta <vingup2...@yahoo.com.invalid> wrote:
> Also the regionserver keeps throwing exceptions like > > 2014-09-17 06:56:07,151 DEBUG [RpcServer.handler=10,port=60020] > regionserver.ServerNonceManager: Conflict detected by nonce: > [43871278468062569 > 89:2793719453824938427], [state 0, hasWait false, activity 06:55:41.091] > 2014-09-17 06:56:07,151 DEBUG [RpcServer.handler=10,port=60020] > regionserver.ServerNonceManager: Conflict detected by nonce: > [43871278468062569 > 89:843474753753473839], [state 0, hasWait false, activity 06:55:41.094] > > > Are we sending data too fast? Is there a client side setting or a server > side setting we need to look at to alleviate this? > Again this was never a problem with HBase 0.94 cluster. > > We are calling the batch API in a List<> of 1000 increment and we do > approx 30000 Increments (30 batches) at a time. > > > -Vinay > > > On Sep 16, 2014, at 11:24 PM, Vinay Gupta <vingup2...@yahoo.com.INVALID> > wrote: > > > > >> > >> Hi, > >> We are using Hbase batch API and with 0.98.1 we get the following > exception on using batch() with Increment > >> ———————————— > >> org.apache.hadoop.hbase.exceptions.OperationConflictException: The > operation with nonce {5266048044724982303, 5395957753774586342} on row > [rowkey13-20140331] may have already completed > >> at > org.apache.hadoop.hbase.regionserver.HRegionServer.startNonceOperation(HRegionServer.java:4199) > >> at > org.apache.hadoop.hbase.regionserver.HRegionServer.increment(HRegionServer.java:4163) > >> at > org.apache.hadoop.hbase.regionserver.HRegionServer.doNonAtomicRegionMutation(HRegionServer.java:3424) > >> at > org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:3359) > >> at > org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:29503) > >> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2012) > >> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:98) > >> at > org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.consumerLoop(SimpleRpcScheduler.java:160) > >> at > org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.access$000(SimpleRpcScheduler.java:38) > >> at > org.apache.hadoop.hbase.ipc.SimpleRpcScheduler$1.run(SimpleRpcScheduler.java:110) > >> at java.lang.Thread.run(Thread.java:745) > >> ———————————— > >> Eventually the job fails with > >> "Error: > org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException" > >> > >> The same job works in Hbase 0.94 installation. Any tips on which config > settings to play with to resolve this? > >> Is the application supposed to handle these exceptions? (something new > in Hbase 0.98 or 0.96 ??) > >> > >> Thanks, > >> -Vinay > >> > > > >