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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8582) Support getting a list of reconfigurable config properties and do not generate spurious reconfig warnings
Date Tue, 24 Nov 2015 23:35:10 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8582?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo Nicholas Sze updated HDFS-8582:
--------------------------------------
    Release Note: Add a new option "properties" to the "dfsadmin -reconfig" command to get
a list of reconfigurable properties.
     Component/s:     (was: HDFS)
                  hdfs-client
                  datanode

> Support getting a list of reconfigurable config properties and do not generate spurious
reconfig warnings
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8582
>                 URL: https://issues.apache.org/jira/browse/HDFS-8582
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, hdfs-client
>    Affects Versions: 2.7.0
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>            Priority: Minor
>             Fix For: 2.8.0
>
>         Attachments: HDFS-8582.000.patch, HDFS-8582.001.patch, HDFS-8582.002.patch, HDFS-8582.003.patch,
HDFS-8582.004.patch
>
>
> When running a DN reconfig to hotswap some drives, it spits out this output:
> {noformat}
> $ hdfs dfsadmin -reconfig datanode localhost:9023 status
> 15/06/09 14:58:10 WARN util.NativeCodeLoader: Unable to load native-hadoop library for
your platform... using builtin-java classes where applicable
> Reconfiguring status for DataNode[localhost:9023]: started at Tue Jun 09 14:57:37 PDT
2015 and finished at Tue Jun 09 14:57:56 PDT 2015.
> FAILED: Change property rpc.engine.org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolPB
>         From: "org.apache.hadoop.ipc.ProtobufRpcEngine"
>         To: ""
>         Error: Property rpc.engine.org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolPB
is not reconfigurable.
> FAILED: Change property mapreduce.client.genericoptionsparser.used
>         From: "true"
>         To: ""
>         Error: Property mapreduce.client.genericoptionsparser.used is not reconfigurable.
> FAILED: Change property rpc.engine.org.apache.hadoop.ipc.ProtocolMetaInfoPB
>         From: "org.apache.hadoop.ipc.ProtobufRpcEngine"
>         To: ""
>         Error: Property rpc.engine.org.apache.hadoop.ipc.ProtocolMetaInfoPB is not reconfigurable.
> SUCCESS: Change property dfs.datanode.data.dir
>         From: "file:///data/1/user/dfs"
>         To: "file:///data/1/user/dfs,file:///data/2/user/dfs"
> FAILED: Change property dfs.datanode.startup
>         From: "REGULAR"
>         To: ""
>         Error: Property dfs.datanode.startup is not reconfigurable.
> FAILED: Change property rpc.engine.org.apache.hadoop.hdfs.protocolPB.InterDatanodeProtocolPB
>         From: "org.apache.hadoop.ipc.ProtobufRpcEngine"
>         To: ""
>         Error: Property rpc.engine.org.apache.hadoop.hdfs.protocolPB.InterDatanodeProtocolPB
is not reconfigurable.
> FAILED: Change property rpc.engine.org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolPB
>         From: "org.apache.hadoop.ipc.ProtobufRpcEngine"
>         To: ""
>         Error: Property rpc.engine.org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolPB
is not reconfigurable.
> FAILED: Change property rpc.engine.org.apache.hadoop.tracing.TraceAdminProtocolPB
>         From: "org.apache.hadoop.ipc.ProtobufRpcEngine"
>         To: ""
>         Error: Property rpc.engine.org.apache.hadoop.tracing.TraceAdminProtocolPB is
not reconfigurable.
> {noformat}
> These failed messages are spurious and should not be shown.



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