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From "Wido den Hollander (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-10243) Updating metadata might hang on VR on "ip rule show"
Date Mon, 22 Jan 2018 09:36:00 GMT


Wido den Hollander commented on CLOUDSTACK-10243:

I haven't tried 4.11 RC1, but the Python code hasn't changed in between.


The Python code say that p.wait() should not be used and can block with large output

> Updating metadata might hang on VR on "ip rule show"
> ----------------------------------------------------
>                 Key: CLOUDSTACK-10243
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Virtual Router
>    Affects Versions:,
>         Environment: CloudStack 4.10 - Basic Networking
>            Reporter: Wido den Hollander
>            Assignee: Wido den Hollander
>            Priority: Major
>              Labels: basic-networking, python, virtual-router
>             Fix For: Future
> On a CloudStack 4.10 setup running with Basic Networking we noticed VMs being in the
"Starting" state.
> After investigating in the VR we show the "ip rule show" command run for ever and never
end. This causes Python scripts to wait and thus never start the Instance.
> This seems to be a issue in where it uses p.wait() which might block in
certain situations.

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