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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3909) Add dynamic config
Date Mon, 29 Oct 2012 18:52:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13486254#comment-13486254

Ted Yu commented on HBASE-3909:

For ClusterConfigTracker:
+        // Cluster configuration already exists in ZK.
+        LOG.info("ZK Cluster Config already available. Skipping config ZK node creation");
The above log should be debug. The second sentence actually belongs to initClusterConfig()
For updateClusterConfig(String configKey, String configValue):
+    } catch (KeeperException e) {
+      LOG.error("Failure during update cluster configuration", e);
Please include configKey in the above log.
The change in ServerManager.java is unrelated, please remove from next patch.

For update_config.rb and get_config.rb, the following is not needed:
+# Copyright 2011 The Apache Software Foundation
For HBaseAdmin.java, the following line exceeds 100 characters long:
+        UpdateConfigRequest request = RequestConverter.buildUpdateConfigRequest(configKey,
Currently only one pair of key / value is updated per UpdateConfigRequest:
+message UpdateConfigRequest {
+  required string configKey = 1;
+  required string configValue = 2;
Shall we accommodate more than one pair (through repeated keyword) ?
> Add dynamic config
> ------------------
>                 Key: HBASE-3909
>                 URL: https://issues.apache.org/jira/browse/HBASE-3909
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: Subbu M Iyer
>             Fix For: 0.96.0
>         Attachments: 3909_090712-2.patch, 3909-102812.patch, 3909-102912.patch, 3909.v1,
3909-v1.patch, HBase Cluster Config Details.xlsx, patch-v2.patch
> I'm sure this issue exists already, at least as part of the discussion around making
online schema edits possible, but no hard this having its own issue.  Ted started a conversation
on this topic up on dev and Todd suggested we lookd at how Hadoop did it over in HADOOP-7001

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