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https://issues.apache.org/jira/browse/HDFS-15652?focusedWorklogId=505074&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-505074
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ASF GitHub Bot logged work on HDFS-15652:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Oct/20 07:13
            Start Date: 27/Oct/20 07:13
    Worklog Time Spent: 10m 
      Work Description: ferhui commented on pull request #2416:
URL: https://github.com/apache/hadoop/pull/2416#issuecomment-717039054


   Failed Tests are unrelated and They are tracked.
   @jojochuang  Could you please take a look again? Thanks


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 505074)
    Time Spent: 1h 20m  (was: 1h 10m)

> Make block size from NNThroughputBenchmark configurable 
> --------------------------------------------------------
>
>                 Key: HDFS-15652
>                 URL: https://issues.apache.org/jira/browse/HDFS-15652
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: benchmarks
>    Affects Versions: 3.3.0
>            Reporter: Hui Fei
>            Assignee: Hui Fei
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> When test NNThroughputBenchmark, get following error logs.
> {quote}
> 2020-10-26 20:51:25,781 ERROR namenode.NNThroughputBenchmark: StatsDaemon 43 
> failed: 
> org.apache.hadoop.ipc.RemoteException(java.io.IOException): Specified block 
> size is less than configured minimum value 
> (dfs.namenode.fs-limits.min-block-size): 16 < 1048576
>         at 
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFileInt(FSNamesystem.java:2514)
>         at 
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startFile(FSNamesystem.java:2452)
>         at 
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.createOriginal(NameNodeRpcServer.java:824)
>         at 
> org.apache.hadoop.hdfs.server.namenode.ProtectionManager.create(ProtectionManager.java:344)
>         at 
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.create(NameNodeRpcServer.java:792)
>         at 
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.create(ClientNamenodeProtocolServerSideTranslatorPB.java:326)
>         at 
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
>         at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:528)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
>         at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:1020)
>         at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:948)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:422)
>         at 
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:2002)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2985)
>         at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1562)
>         at org.apache.hadoop.ipc.Client.call(Client.java:1508)
>         at org.apache.hadoop.ipc.Client.call(Client.java:1405)
>         at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:233)
>         at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118)
>         at com.sun.proxy.$Proxy9.create(Unknown Source)
>         at 
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create(ClientNamenodeProtocolTranslatorPB.java:281)
>         at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
>         at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
>         at com.sun.proxy.$Proxy10.create(Unknown Source)
>         at 
> org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark$CreateFileStats.executeOp(NNThroughputBenchmark.java:597)
>         at 
> org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark$StatsDaemon.benchmarkOne(NNThroughputBenchmark.java:428)
>         at 
> org.apache.hadoop.hdfs.server.namenode.NNThroughputBenchmark$StatsDaemon.run(NNThroughputBenchmark.java:412)
> {quote}
> Because NN has start and serves, we should make block size of client 
> benchmark configurable, and that will be convenient



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