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https://issues.apache.org/jira/browse/HDFS-16813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17637529#comment-17637529
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ASF GitHub Bot commented on HDFS-16813:
---------------------------------------
ZanderXu merged PR #5063:
URL: https://github.com/apache/hadoop/pull/5063
> Remove parameter validation logic such as
> dfs.namenode.decommission.blocks.per.interval in DatanodeAdminManager#activate
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-16813
> URL: https://issues.apache.org/jira/browse/HDFS-16813
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
> Labels: pull-request-available
>
> In DatanodeAdminManager#activate
> {code:java}
> int blocksPerInterval = conf.getInt(
> DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_BLOCKS_PER_INTERVAL_KEY,
> DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_BLOCKS_PER_INTERVAL_DEFAULT);
> final String deprecatedKey =
> "dfs.namenode.decommission.nodes.per.interval";
> final String strNodes = conf.get(deprecatedKey);
> if (strNodes != null) {
> LOG.warn("Deprecated configuration key {} will be ignored.",
> deprecatedKey);
> LOG.warn("Please update your configuration to use {} instead.",
> DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_BLOCKS_PER_INTERVAL_KEY);
> }
> checkArgument(blocksPerInterval > 0,
> "Must set a positive value for "
> + DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_BLOCKS_PER_INTERVAL_KEY);
> final int maxConcurrentTrackedNodes = conf.getInt(
> DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_MAX_CONCURRENT_TRACKED_NODES,
> DFSConfigKeys
> .DFS_NAMENODE_DECOMMISSION_MAX_CONCURRENT_TRACKED_NODES_DEFAULT);
> checkArgument(maxConcurrentTrackedNodes >= 0, "Cannot set a negative " +
> "value for "
> + DFSConfigKeys.DFS_NAMENODE_DECOMMISSION_MAX_CONCURRENT_TRACKED_NODES);
> {code}
> there is no need for parameters
> dfs.namenode.decommission.blocks.per.interval and
> dfs.namenode.decommission.max.concurrent.tracked.nodes to verify.
> Because the parameters are processed in DatanodeAdminMonitorBase and
> DatanodeAdminDefaultMonitor.
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