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https://issues.apache.org/jira/browse/FLINK-2732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14958601#comment-14958601
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Robert Metzger commented on FLINK-2732:
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"The idea is not to have any communication between task managers" ? To
implement this feature, there is no communication required between TMs.
I don't think that the three network hops [~sachingoel0101] is mentioning are a
big issue. There are a lot of messages send back and forth between JM and TM
all the time.
Some more arguments against Sachin's proposal:
- Running a web server on each TaskManager just for serving some log files also
requires resources
- We can not assume that users can access the TaskManagers from their browsers.
Remember that in many companies, there are firewalls in place, which allow only
access to certain nodes. The web interface of Flink on YARN is also accessed
through a proxy running on the resource manager. The RM will then load the
resources from the AM/JM container. So we can not assume that we can establish
a connection from client browser <---> TM container on YARN.
That's also the reason why we send the data of the {{DataSet.collect()}}
through the JM.
> Add access to the TaskManagers' log file and out file in the web dashboard.
> ---------------------------------------------------------------------------
>
> Key: FLINK-2732
> URL: https://issues.apache.org/jira/browse/FLINK-2732
> Project: Flink
> Issue Type: Sub-task
> Components: Webfrontend
> Affects Versions: 0.10
> Reporter: Stephan Ewen
> Assignee: Martin Liesenberg
> Fix For: 0.10
>
>
> Add access to the TaskManagers' log file and out file in the web dashboard.
> This needs addition on the server side, as the log files need to be
> transferred to the JobManager via the blob server.
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