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https://issues.apache.org/jira/browse/MESOS-2903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14594094#comment-14594094
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Jie Yu commented on MESOS-2903:
-------------------------------
Can you paste the relevant logging to show why this is necessary?
> Network isolator should not fail when target state already exists
> -----------------------------------------------------------------
>
> Key: MESOS-2903
> URL: https://issues.apache.org/jira/browse/MESOS-2903
> Project: Mesos
> Issue Type: Bug
> Components: isolation
> Reporter: Paul Brett
>
> Network isolator has multiple instances of the following pattern:
> {noformat}
> Try<bool> something = ....::create();
> if (something.isError()) {
>
> ++metrics.something_errors;
> return Failure("Failed to create something ...")
> } else if (!icmpVethToEth0.get()) {
>
> ++metrics.adding_veth_icmp_filters_already_exist;
>
> return Failure("Something already exists");
> }
>
> {noformat}
> These failures have occurred in operation due to the failure to recover or
> delete an orphan, causing the slave to remain on line but unable to create
> new resources. We should convert the second failure message in this
> pattern to an information message since the final state of the system is the
> state that we requested.
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