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Sunil Govindan commented on YARN-8948: -------------------------------------- On this note, this is not an interface level compatibility problem. Ideally we should have done for all schedulers, however this is not affecting the interface, and hence i suggest to mark this as Major and get this in all respective versions and next release can take this. If you feel this is really a blocker to 3.2, kindly let me know. > PlacementRule interface should be for all YarnSchedulers > -------------------------------------------------------- > > Key: YARN-8948 > URL: https://issues.apache.org/jira/browse/YARN-8948 > Project: Hadoop YARN > Issue Type: Bug > Reporter: Bibin A Chundatt > Assignee: Bibin A Chundatt > Priority: Critical > Attachments: YARN-8948.001.patch, YARN-8948.002.patch, > YARN-8948.003.patch > > > *Issue 1:* > YARN-3635 intention was to add PlacementRule interface common for all > YarnSchedules. > {code} > 33 public abstract boolean initialize( > 34 CapacitySchedulerContext schedulerContext) throws IOException; > {code} > PlacementRule initialization is done using CapacitySchedulerContext binding > to CapacityScheduler > *Issue 2:* > {{yarn.scheduler.queue-placement-rules}} doesn't work as expected in Capacity > Scheduler > {quote} > * **Queue Mapping Interface based on Default or User Defined Placement > Rules** - This feature allows users to map a job to a specific queue based on > some default placement rule. For instance based on user & group, or > application name. User can also define their own placement rule. > {quote} > As per current UserGroupMapping is always added in placementRule. > {{CapacityScheduler#updatePlacementRules}} > {code} > // Initialize placement rules > Collection<String> placementRuleStrs = conf.getStringCollection( > YarnConfiguration.QUEUE_PLACEMENT_RULES); > List<PlacementRule> placementRules = new ArrayList<>(); > ... > // add UserGroupMappingPlacementRule if absent > distingushRuleSet.add(YarnConfiguration.USER_GROUP_PLACEMENT_RULE); > {code} > PlacementRule configuration order is not maintained -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org