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https://issues.apache.org/jira/browse/HBASE-24515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17128352#comment-17128352
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Hudson commented on HBASE-24515:
--------------------------------
Results for branch master
[build #1751 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/master/1751/]: (x)
*{color:red}-1 overall{color}*
----
details (if available):
(/) {color:green}+1 general checks{color}
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(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
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(/) {color:green}+1 jdk8 hadoop3 checks{color}
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(x) {color:red}-1 jdk11 hadoop3 checks{color}
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(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> batch Increment/Append fails when retrying the RPC
> --------------------------------------------------
>
> Key: HBASE-24515
> URL: https://issues.apache.org/jira/browse/HBASE-24515
> Project: HBase
> Issue Type: Bug
> Reporter: Toshihiro Suzuki
> Assignee: Toshihiro Suzuki
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.3.0, 2.4.0, 2.1.10, 2.2.6
>
>
> When a client hits RPC timeout and sends a second RPC request for batch
> Increment/Append but the first RPC is already processed actually, the nonce
> of the RPC is saved in the RS.
> In this case, for the second RPC, the RS just reads the previous result and
> returns it to the client to avoid the Increment/Append is processed twice.
> At that time, for batch Increment/Append, we try to create a Get object from
> a CellScanner object in the following code:
>
> [https://github.com/apache/hbase/blob/66452afc09d8b82927e5e58565f97939faa22c7b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java#L773-L776]
> However, the CellScanner object is already consumed to create the
> Increment/Append object in the following code, and it fails with the
> following exception:
>
> [https://github.com/apache/hbase/blob/66452afc09d8b82927e5e58565f97939faa22c7b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java#L757]
> {code:java}
> 2020-06-06 14:09:06,153 WARN [hconnection-0x79c3903e-shared-pool3-t209]
> client.AsyncRequestFutureImpl: id=1, table=REF_Test, attempt=3/36,
> failureCount=1ops, last
> exception=org.apache.hadoop.hbase.DoNotRetryIOException:
> org.apache.hadoop.hbase.DoNotRetryIOException: Cell count of 1 but at index 0
> no cell returned: row: "xxxxxxxxxxx" mutate_type: INCREMENT timestamp:
> 9223372036854775807 durability: USE_DEFAULT time_range { from: 0 to:
> 9223372036854775807 } associated_cell_count: 1 nonce: 5281583076322914765
> at
> org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil.toGet(ProtobufUtil.java:934)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.increment(RSRpcServices.java:737)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.doNonAtomicRegionMutation(RSRpcServices.java:877)
> at
> org.apache.hadoop.hbase.regionserver.RSRpcServices.multi(RSRpcServices.java:2702)
> at
> org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:42202)
> at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
> at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:132)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:324)
> at
> org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:304)
> {code}
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