Re: Slow ops on 1 host

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What writefull actually means, haven't really found anything in ceph doc and just some flowchart which not really clear in google :/

This is when it started and have this kind of messages after:

2022-02-18T08:47:46.694274+0700 osd.148 (osd.148) 1701 : cluster [WRN] slow request osd_op(client.524665199.0:984004907 24.74es0 24:72fb53ba:::9213182a-14ba-48ad-bde9-289a1c0c0de8.21813
595.2__shadow_.6taCcYVmTAl87Ai0ZggPc-b_el2M4A7_3:head [writefull 0~4194304 in=4194304b] snapc 0=[] ondisk+write+known_if_redirected e63105) initiated 2022-02-18T08:47:15.758941+0700 cur
rently started

Istvan Szabo
Senior Infrastructure Engineer
---------------------------------------------------
Agoda Services Co., Ltd.
e: istvan.szabo@xxxxxxxxx
---------------------------------------------------

-----Original Message-----
From: Anthony D'Atri <anthony.datri@xxxxxxxxx> 
Sent: Friday, February 18, 2022 1:44 PM
To: Szabo, Istvan (Agoda) <Istvan.Szabo@xxxxxxxxx>
Subject: Re:  Slow ops on 1 host

Email received from the internet. If in doubt, don't click any link nor open any attachment !
________________________________

Look at the OSD logs, figure out which OSD.  Correlate with syslog / dmesg and smartctl etc.  SATA? If it’s all OSDs on the node likely the HBA.  If just one, likely the drive.

> On Feb 17, 2022, at 9:44 PM, Szabo, Istvan (Agoda) <Istvan.Szabo@xxxxxxxxx> wrote:
>
> Hi,
>
> Is there a way to identify what and where is stuck on 1 host that causing slow operation?
> If I shutdown that host where the slow ops is coming, the cluster got back to normal operation, if I start back, slow ops coming.
>
> I'm planning to purge all osds on that host but I scare a bit the slow ops will move to another host.
>
> Thank you
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