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Posted to issues@mesos.apache.org by "Qian Zhang (JIRA)" <ji...@apache.org> on 2019/04/02 07:09:00 UTC
[jira] [Commented] (MESOS-9672) Docker containerizer should ignore
pids of executors that do not pass the connection check.
[ https://issues.apache.org/jira/browse/MESOS-9672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16807462#comment-16807462 ]
Qian Zhang commented on MESOS-9672:
-----------------------------------
Instead of ignoring pids of executors that do not pass the connection check, we may consider to remove the duplicate pid check from Docker containerizer, see MESOS-9695 for details.
> Docker containerizer should ignore pids of executors that do not pass the connection check.
> -------------------------------------------------------------------------------------------
>
> Key: MESOS-9672
> URL: https://issues.apache.org/jira/browse/MESOS-9672
> Project: Mesos
> Issue Type: Bug
> Components: containerization
> Reporter: Meng Zhu
> Priority: Critical
> Labels: containerization
>
> When recovering executors with a tracked pid we first try to establish a connection to its libprocess address to avoid reaping an irrelevant process:
> https://github.com/apache/mesos/blob/4580834471fb3bc0b95e2b96e04a63d34faef724/src/slave/containerizer/docker.cpp#L1019-L1054
> If the connection fails to establish, we should not track its pid: https://github.com/apache/mesos/blob/4580834471fb3bc0b95e2b96e04a63d34faef724/src/slave/containerizer/docker.cpp#L1071
> One trouble this might cause is that if the pid is being used by another executor, this could lead to duplicate pid error and lead the agent into a crash loop:
> https://github.com/apache/mesos/blob/4580834471fb3bc0b95e2b96e04a63d34faef724/src/slave/containerizer/docker.cpp#L1066-L1068
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