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https://issues.apache.org/jira/browse/FLINK-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14175316#comment-14175316
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ASF GitHub Bot commented on FLINK-1170:
---------------------------------------
Github user StephanEwen commented on a diff in the pull request:
https://github.com/apache/incubator-flink/pull/158#discussion_r19032889
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/instance/InstanceConnectionInfo.java
---
@@ -25,7 +25,10 @@
import org.apache.flink.core.io.IOReadableWritable;
--- End diff --
Eager computation of the FQDN (in the constructor) on the taskmanager would
be a good idea. Otherwise, in corner cases, reverse name lookup falls to the
jobmanager (which might get overloaded doing too many reverse lookups).
> Localization of InputSplits is not working properly
> ---------------------------------------------------
>
> Key: FLINK-1170
> URL: https://issues.apache.org/jira/browse/FLINK-1170
> Project: Flink
> Issue Type: Bug
> Components: Distributed Runtime
> Reporter: Robert Metzger
> Assignee: Robert Metzger
>
> While running some benchmarks, I found that Flink is not properly assigning
> the InputSplits.
> On my testing cluster, ALL splits were assigned to remote HDFS DataNodes,
> which causes a lot of network I/O.
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