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YARN-3623. Add a config to indicate the Timeline Service version. Contributed by Xuan Gong. 

(cherry picked from commit f910e4f639)
This commit is contained in:
Junping Du 2015-12-10 02:44:30 -08:00
parent c65a796f88
commit 0b5e76e9ff
3 changed files with 20 additions and 0 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -216,6 +216,9 @@ Release 2.8.0 - UNRELEASED
YARN-4349. Support CallerContext in YARN. (wtan via jianhe)
YARN-3623. Add a new config to indicate the Timeline Service version.
(Xuan Gong via junping_du)
IMPROVEMENTS
YARN-644. Basic null check is not performed on passed in arguments before

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -1538,6 +1538,9 @@ public class YarnConfiguration extends Configuration {
public static final String TIMELINE_SERVICE_PREFIX =
YARN_PREFIX + "timeline-service.";
public static final String TIMELINE_SERVICE_VERSION = TIMELINE_SERVICE_PREFIX
+ "version";
public static final float DEFAULT_TIMELINE_SERVICE_VERSION = 1.0f;
/**
* Comma seperated list of names for UIs hosted in the timeline server
* (For pluggable UIs).

14
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
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@ -1765,6 +1765,20 @@
<!-- Timeline Service Configuration -->
<property>
<description>Indicate what is the current version of the running
timeline service. For example, if "yarn.timeline-service.version" is 1.5,
and "yarn.timeline-service.enabled" is true, it means the cluster will and
should bring up the timeline service v.1.5 (and nothing else).
On the client side, if the client uses the same version of timeline service,
it should succeed. If the client chooses to use a smaller version in spite of this,
then depending on how robust the compatibility story is between versions,
the results may vary.
</description>
<name>yarn.timeline-service.version</name>
<value>1.0f</value>
</property>
<property>
<description>Indicate to clients whether timeline service is enabled or not.
If enabled, clients will put entities and events to the timeline server.