[
https://issues.apache.org/jira/browse/YARN-4482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15068959#comment-15068959
]
Tianyin Xu commented on YARN-4482:
----------------------------------
I got some time to look into this.
Yes... the values changed... (that's why the values are commented...)
The default of {{yarn.client.failover-max-attempts}} becomes {{-1}}, while the
defaults of {{yarn.client.failover-sleep-base-ms}} and
{{yarn.client.failover-sleep-max-ms}} are equivalent to the default value of
{{yarn.resourcemanager.connect.retry-interval.ms}} (which is {{30000}}
currently).
The code is in
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/client/RMProxy.java
{code:title=RMProxy.java|borderStyle=solid}
177 long rmConnectionRetryIntervalMS =
178 conf.getLong(
179 YarnConfiguration.RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS,
180 YarnConfiguration
181 .DEFAULT_RESOURCEMANAGER_CONNECT_RETRY_INTERVAL_MS);
......
203 final long failoverSleepBaseMs = conf.getLong(
204 YarnConfiguration.CLIENT_FAILOVER_SLEEPTIME_BASE_MS,
205 rmConnectionRetryIntervalMS);
206
207 final long failoverSleepMaxMs = conf.getLong(
208 YarnConfiguration.CLIENT_FAILOVER_SLEEPTIME_MAX_MS,
209 rmConnectionRetryIntervalMS);
210
211 int maxFailoverAttempts = conf.getInt(
212 YarnConfiguration.CLIENT_FAILOVER_MAX_ATTEMPTS, -1);
{code}
The information should be updated in the docs.
> Default values of several config parameters are missing
> --------------------------------------------------------
>
> Key: YARN-4482
> URL: https://issues.apache.org/jira/browse/YARN-4482
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: client
> Affects Versions: 2.6.2, 2.6.3
> Reporter: Tianyin Xu
> Assignee: Mohammad Shahid Khan
> Priority: Minor
>
> In {{yarn-default.xml}}, the default values of the following parameters are
> commented out,
> {{yarn.client.failover-max-attempts}}
> {{yarn.client.failover-sleep-base-ms}}
> {{yarn.client.failover-sleep-max-ms}}
> Are these default values changed (I suppose so)? If so, we should update the
> new ones in {{yarn-default.xml}}. Right now, I don't know the real "default"
> values...
> (yarn-default.xml)
> https://hadoop.apache.org/docs/r2.6.2/hadoop-yarn/hadoop-yarn-common/yarn-default.xml
> https://hadoop.apache.org/docs/r2.6.3/hadoop-yarn/hadoop-yarn-common/yarn-default.xml
> Thanks!
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
