Re: [MooseFS-Users] MFS 2.0.91 Master is crashing

[Michael T. <mic...@ho...>]

First of all, my apologies if this reply is messing up the threading as I'm replying to a digest feed instead of the actual thread.

As far as trash is concerned, based on the GUI:

Trash files: 4,996
Trash size: 26GiB
Chunks with Goal=0: 1,329

There is a 19GB file named core in /var/lib/mfs:

-rw------- 1 mfs mfs  19G Mar  2 11:01 core

Is this the core dump file?  If so, I'll upload it somewhere.  Please note though that the date stamp is 1 day later, if it matters.

As far as syslog goes, I did not find any logged crash/abort entry around the time of the crash. Just a lot of messages like this: "Mar  1 10:01:19 HO-MFSMaster01 mfsmaster[1035]: chunkserver has nonexistent chunk (0000000001AC5130_00000001), so create it for future deletion"


--- mike t.


________________________________
Date: Thu, 2 Mar 2017 10:31:38 +0100
From: Aleksander Wieliczko <ale...@mo...>
Subject: Re: [MooseFS-Users] MFS 2.0.91 Master is crashing
To: moo...@li...
Message-ID: <b1e...@mo...>
Content-Type: text/plain; charset="windows-1252"

Hi.
First of all we would like to know how many objects you have in trash?
Secondly. Do you have core dump file?
System log is always good option to see, so please send it on list or
directly to 'support at moosefs.com'

I'm looking forward to hearing from you.
Aleksander Wieliczko
Technical Support Engineer
MooseFS.com <moosefs.com>


On 02.03.2017 03:59, Michael Tinsay wrote:
>
> Hi.
>
>
> MFSmaster crashed a couple of times when I did the following:
>
>
> 1. log in to mfsmaster machine. Then su into root.
>
> 2. execute: mfsmount -m -p /mnt/mfsmeta
>
> 3. execute: cd /mnt/mfsmeta/trash
>
> 4. execute: ls -hl  <== in less than a minute mfsmaster will crash.
>
>
> If I don't do step 4, mfsmaster runs just fine.
>
>
> The mfsmaster is installed a dedicated, bare metal machine for
> mfsmaster, not a VM.  It is running Ubuntu 14.04 with the latest
> updates applied.  The machine has 32GB of ram, and mfsmaster is using
> 20GB.
>
>
> Please advise what other info is needed. Or log files. Or whatever.
>
>
> Regards.
>
>
>
> --- mike t.
>
>
>
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End of moosefs-users Digest, Vol 87, Issue 1
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