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https://issues.apache.org/jira/browse/YARN-2165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14033377#comment-14033377
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Zhijie Shen commented on YARN-2165:
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[~karams], how about gathering the similar validation issues (YARN-2166) here?
> Timelineserver should validate that yarn.timeline-service.ttl-ms is greater
> than zero
> -------------------------------------------------------------------------------------
>
> Key: YARN-2165
> URL: https://issues.apache.org/jira/browse/YARN-2165
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelineserver
> Reporter: Karam Singh
>
> Timelineserver should validate that yarn.timeline-service.ttl-ms is greater
> than zero
> Currently if set yarn.timeline-service.ttl-ms=0
> Or yarn.timeline-service.ttl-ms=-86400
> Timeline server start successfully with complaining
> {code}
> 2014-06-15 14:52:16,562 INFO timeline.LeveldbTimelineStore
> (LeveldbTimelineStore.java:<init>(247)) - Starting deletion thread with ttl
> -604800000 and cycle interval 300000
> {code}
> At starting timelinserver should that yarn.timeline-service-ttl-ms > 0
> otherwise specially for -ive value discard oldvalues timestamp will be set
> future value. Which may lead to inconsistancy in behavior
> {code}
> public void run() {
> while (true) {
> long timestamp = System.currentTimeMillis() - ttl;
> try {
> discardOldEntities(timestamp);
> Thread.sleep(ttlInterval);
> {code}
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