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https://issues.apache.org/jira/browse/AMBARI-19809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alejandro Fernandez updated AMBARI-19809:
-----------------------------------------
Status: Patch Available (was: Open)
> HDP 3.0 TP - failed to deploy YARN configs because yarn-site creates
> conflicts since should not belong to MAPREDUCE2
> --------------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-19809
> URL: https://issues.apache.org/jira/browse/AMBARI-19809
> Project: Ambari
> Issue Type: Bug
> Components: stacks
> Affects Versions: 3.0.0
> Reporter: Alejandro Fernandez
> Assignee: Alejandro Fernandez
> Fix For: 3.0.0
>
> Attachments: AMBARI-19809.patch
>
>
> STR:
> * Install Ambari trunk
> * Install HDP 3.0, e.g., centos6:
> http://s3.amazonaws.com/dev.hortonworks.com/HDP/centos6/3.x/BUILDS/3.0.0.0-30
> * Select ZK, HDFS, YARN
> * During deployment, will see the following error in the ambari-server log
> {noformat}
> 26 Jan 2017 20:01:48,119 ERROR [ambari-client-thread-26] ClusterImpl:2662 -
> Updating configs for multiple services by a single API request isn't
> supported. Conflicting services YARN and MAPREDUCE2 for yarn-site, config
> version not created for YARN
> {noformat}
> This is likely due to changes I introduced in YARN's Service Advisor by
> splitting it up into YARN and MAPREDUCE classes.
> ambari-server/src/main/resources/common-services/YARN/3.0.0.3.0/service_advisor.py
> has YARNServiceAdvisor, MAPREDUCE2ServiceAdvisor
> Ideally, we can keep those 2 classes, but let's also explore
> ClusterImpl.java's applyConfigs() method.
> {code}
> ServiceConfigVersionResponse applyConfigs(Set<Config> configs, String user,
> String serviceConfigVersionNote) {
> String serviceName = null;
> for (Config config : configs) {
> for (Entry<String, String> entry : serviceConfigTypes.entries()) {
> if (StringUtils.equals(entry.getValue(), config.getType())) {
> if (serviceName == null) {
> serviceName = entry.getKey();
> break;
> } else if (!serviceName.equals(entry.getKey())) {
> String error = String.format("Updating configs for multiple
> services by a " +
> "single API request isn't supported. Conflicting services %s
> and %s for %s",
> serviceName, entry.getKey(),
> config.getType());
> IllegalArgumentException exception = new
> IllegalArgumentException(error);
> LOG.error(error + ", config version not created for {}",
> serviceName);
> throw exception;
> } else {
> break;
> }
> }
> }
> }
> ...
> {code}
> This is because yarn-site is marked right now as belonging to both YARN and
> MAPREDUCE2, which is incorrect since it should not belong to MAPREDUCE2.
> The fix update the HDP 3.0 service definition for MAPREDUCE2 to use the
> correct configuration directory.
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