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Posted to issues@hbase.apache.org by "Duo Zhang (Jira)" <ji...@apache.org> on 2021/10/21 14:15:00 UTC

[jira] [Updated] (HBASE-26385) Clear CellScanner when replay

     [ https://issues.apache.org/jira/browse/HBASE-26385?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang updated HBASE-26385:
------------------------------
    Component/s: rpc
                 regionserver

> Clear CellScanner when replay
> -----------------------------
>
>                 Key: HBASE-26385
>                 URL: https://issues.apache.org/jira/browse/HBASE-26385
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, rpc
>    Affects Versions: 2.4.7
>            Reporter: Lijin Bin
>            Assignee: Lijin Bin
>            Priority: Major
>             Fix For: 2.5.0, 3.0.0-alpha-2, 2.4.9
>
>
> RSRpcServices#mutate and RSRpcServices#multi we clear CellScanner immediately when get CellScanner from  HBaseRpcController,so need it in RSRpcServices#replay and  RSRpcServices#replicateWALEntry also.
> {code}
>     // rpc controller is how we bring in data via the back door;  it is unprotobuf'ed data.
>     // It is also the conduit via which we pass back data.
>     HBaseRpcController controller = (HBaseRpcController)rpcc;
>     CellScanner cellScanner = controller != null ? controller.cellScanner(): null;
>     if (controller != null) {
>       controller.setCellScanner(null);
>     }
> {code}
> if not we will see the error like the following
> {code}
> 2021-10-18 12:04:13,971 WARN  [RpcServer.default.FPBQ.Fifo.handler=29,queue=2,port=16022] ipc.RpcServer: RpcServer.default.FPBQ.Fifo.handler=29,queue=2,port=16022: caught: java.lang.IllegalArgumentException: ReferenceCount : 0 (expected: > 0)
> 	at org.apache.hbase.thirdparty.io.netty.util.internal.ObjectUtil.checkPositive(ObjectUtil.java:80)
> 	at org.apache.hadoop.hbase.nio.ByteBuff.checkRefCount(ByteBuff.java:70)
> 	at org.apache.hadoop.hbase.nio.SingleByteBuff.hasRemaining(SingleByteBuff.java:155)
> 	at org.apache.hadoop.hbase.codec.KeyValueCodec$ByteBuffKeyValueDecoder.advance(KeyValueCodec.java:90)
> 	at org.apache.hadoop.hbase.ipc.CellBlockBuilder.encodeCellsTo(CellBlockBuilder.java:191)
> 	at org.apache.hadoop.hbase.ipc.CellBlockBuilder.buildCellBlockStream(CellBlockBuilder.java:228)
> 	at org.apache.hadoop.hbase.ipc.ServerCall.setResponse(ServerCall.java:243)
> 	at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:168)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:338)
> 	at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:318)
> {code}



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