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https://issues.apache.org/jira/browse/MYRIAD-125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Santosh Marella closed MYRIAD-125.
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Resolution: Cannot Reproduce
> Myriad /config API issue for "YARN_NODEMANAGER_OPTS" param when RM's hostname
> is passed.
> ----------------------------------------------------------------------------------------
>
> Key: MYRIAD-125
> URL: https://issues.apache.org/jira/browse/MYRIAD-125
> Project: Myriad
> Issue Type: Bug
> Components: Scheduler
> Reporter: Sarjeet Singh
> Assignee: Santosh Marella
> Fix For: Myriad 0.1.0
>
>
> The issue is with "YARN_NODEMANAGER_OPTS" param that has
> "-Dyarn.resourcemanager.hostname=<host-name>" keep appending on each offer
> created by myriad to yarnEnvironment.
> Found this piece of code that has the issue.
> In TaskFactory.java:
> <code>
> String rmHostName = System.getProperty(YARN_RESOURCEMANAGER_HOSTNAME);
> if (rmHostName != null && !rmHostName.isEmpty()) {
> String nmOpts =
> nmTaskConfig.getYarnEnvironment().get(YARN_NODEMANAGER_OPTS_KEY);
> if (nmOpts == null) {
> nmOpts = "";
> }
> nmOpts += " " + "-D" + YARN_RESOURCEMANAGER_HOSTNAME + "=" +
> rmHostName;
>
> nmTaskConfig.getYarnEnvironment().put(YARN_NODEMANAGER_OPTS_KEY, nmOpts);
> LOGGER.info(YARN_RESOURCEMANAGER_HOSTNAME + " is set to " +
> rmHostName +
> " via YARN_RESOURCEMANAGER_OPTS. Passing it into
> YARN_NODEMANAGER_OPTS.");
> }
> </code>
> Observed this when I tried to start RM from marathon, and HTTP GET the
> /config API and checked "YARN_NODEMANAGER_OPTS" between 10-15 min interval .
>
> Here is what I observed:
> "yarnEnvironment": {
> "YARN_HOME": "/opt/mapr/hadoop/hadoop-2.7.0/",
> "YARN_NODEMANAGER_OPTS": "-Dnodemanager.resource.io-spindles=4.0
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos"
> },
> After 10-15 min of being idle:
> "yarnEnvironment": {
> "YARN_HOME": "/opt/mapr/hadoop/hadoop-2.7.0/",
> "YARN_NODEMANAGER_OPTS": "-Dnodemanager.resource.io-spindles=4.0
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos
> -Dyarn.resourcemanager.hostname=rm.marathon.mesos"
> },
> Let me know if need any addiotinal detail about the issue? Thanks.
> FYI, this should be easy to reproducible by just starting Myriad and check
> /config API output between 10-15 min interval.
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