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https://issues.apache.org/jira/browse/FLINK-5791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15880758#comment-15880758
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ASF GitHub Bot commented on FLINK-5791:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/3304#discussion_r102684945
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/TaskManagerServicesConfiguration.java
---
@@ -94,6 +102,8 @@ public TaskManagerServicesConfiguration(
checkArgument(timerServiceShutdownTimeout >= 0L, "The timer " +
"service shutdown timeout must be greater or equal to
0.");
this.timerServiceShutdownTimeout = timerServiceShutdownTimeout;
+
+ this.resourceProfiles = new LinkedList<>();
--- End diff --
`LinkedLists` are slow. Please use an `ArrayList`. Even better to pass the
value for `resourceProfiles` to the constructor.
> Resource should be strictly matched when allocating for yarn
> ------------------------------------------------------------
>
> Key: FLINK-5791
> URL: https://issues.apache.org/jira/browse/FLINK-5791
> Project: Flink
> Issue Type: Improvement
> Components: YARN
> Reporter: shuai.xu
> Assignee: shuai.xu
> Labels: flip-6
>
> In flip6, for yarn mode, resource should be assigned as requested to avoid
> resource wasting and OOM.
> 1. YarnResourceManager will request container according to ResourceProfile
> in slot request form JM.
> 2. RM will pass the ResourceProfile to TM for initializing its slots.
> 3. RM should match the slots offered by TM with SlotRequest from JM strictly.
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