Re: Ceph-fuse getting stuck with "currently failed to authpin local pins"

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I could be http://tracker.ceph.com/issues/24172


On Wed, May 30, 2018 at 9:01 AM, Linh Vu <vul@xxxxxxxxxxxxxx> wrote:
> In my case, I have multiple active MDS (with directory pinning at the very
> top level), and there would be "Client xxx failing to respond to capability
> release" health warning every single time that happens.
>
> ________________________________
> From: ceph-users <ceph-users-bounces@xxxxxxxxxxxxxx> on behalf of Yan, Zheng
> <ukernel@xxxxxxxxx>
> Sent: Tuesday, 29 May 2018 9:53:43 PM
> To: Oliver Freyermuth
> Cc: Ceph Users; Peter Wienemann
> Subject: Re:  Ceph-fuse getting stuck with "currently failed to
> authpin local pins"
>
> Single or multiple acitve mds? Were there "Client xxx failing to
> respond to capability release" health warning?
>
> On Mon, May 28, 2018 at 10:38 PM, Oliver Freyermuth
> <freyermuth@xxxxxxxxxxxxxxxxxx> wrote:
>> Dear Cephalopodians,
>>
>> we just had a "lockup" of many MDS requests, and also trimming fell
>> behind, for over 2 days.
>> One of the clients (all ceph-fuse 12.2.5 on CentOS 7.5) was in status
>> "currently failed to authpin local pins". Metadata pool usage did grow by 10
>> GB in those 2 days.
>>
>> Rebooting the node to force a client eviction solved the issue, and now
>> metadata usage is down again, and all stuck requests were processed quickly.
>>
>> Is there any idea on what could cause something like that? On the client,
>> der was no CPU load, but many processes waiting for cephfs to respond.
>> Syslog did yield anything. It only affected one user and his user
>> directory.
>>
>> If there are no ideas: How can I collect good debug information in case
>> this happens again?
>>
>> Cheers,
>>         Oliver
>>
>>
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>>
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>>
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