[
https://issues.apache.org/jira/browse/HAWQ-560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15205683#comment-15205683
]
ASF GitHub Bot commented on HAWQ-560:
-------------------------------------
Github user yaoj2 commented on a diff in the pull request:
https://github.com/apache/incubator-hawq/pull/473#discussion_r56931724
--- Diff: tools/bin/hawq_ctl ---
@@ -182,6 +182,18 @@ class HawqInit:
logger.warn("Set standby host name failed")
return result
+ def set_number_by_datanodes_num(self):
+ reuslt = 0
+ if self.hosts_count_number < 4:
+ # Set output.replace-datanode-on-failure to false if datanode
number less than 4.
+ logger.info("Set output.replace-datanode-on-failure to false
as %s datanode detected" % self.hosts_count_number)
+ logger.info("If you actually have more than 4 datanodes,
please set it to 'true'")
+ cmd = "hawq config -c 'output.replace-datanode-on-failure' -v
'false' --skipvalidation -q > /dev/null"
--- End diff --
the parameter is in hdfs client
> Set 'output.replace-datanode-on-failure' depend on datanodes number
> -------------------------------------------------------------------
>
> Key: HAWQ-560
> URL: https://issues.apache.org/jira/browse/HAWQ-560
> Project: Apache HAWQ
> Issue Type: New Feature
> Components: Command Line Tools
> Reporter: Radar Lei
> Assignee: Radar Lei
>
> Set 'output.replace-datanode-on-failure' depend on datanode number.
> By default, we should set this value while hawq cluster init. To set this
> value automatically, we assume segment number is the same as datanode number.
> When datanodes < 4, change the default value from true to false.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
