[Gluster-devel] Weird lock-ups

Tue Nov 4 06:44:44 UTC 2008

Gordan,

I checked on pre5 by creating a no-dest symlink and check how it
behaves. It was fine. Avati said that he had seen similar issue in
pre5 and not on latest code. Hence mentioned that it would be fixed in
pre6. I am not sure why you saw that bug, if you see same issue on
pre6 then we will investigate.

Regards
Krishna

On Mon, Nov 3, 2008 at 7:21 PM, Gordan Bobic <gordan at bobich.net> wrote:
> Thank you.
>
> Thinking about it, could it be that symlinking to a different FS (that
> doesn't exist on the other node) is what causes the lock-uk/crash in 1.3.x,
> too? This might explain why syncing from the remote node (invalid link)
> works but from the local node (valid link) hangs.
>
> Gordan
>
> Krishna Srinivas wrote:
>>
>> Hi Gordan,
>>
>> Next pre release will fix this, excuse us for not responding to this
>> thread.
>>
>> Thanks
>> Krishna
>>
>> On Mon, Nov 3, 2008 at 7:05 AM, Gordan Bobic <gordan at bobich.net> wrote:
>>>
>>> Hi,
>>>
>>> I 1.4.0pre5 doesn't seem to work for me at all.
>>>
>>> When I try to ls the share, I get broken directory entries. This is the
>>> sort
>>> of thing ls returns for my home directory:
>>>
>>> ?---------  ? ?                ?             ?            ? gordan
>>>
>>> instead of:
>>>
>>> drwxr-x--- 70 gordan           gordan      4096 Nov  3 01:22 gordan
>>>
>>> This is what ends up in the log:
>>> 2008-11-02 13:42:02 C [posix.c:2749:ensure_file_type] home-store: stat
>>> failed while trying to make sure entry /gluster/home/gordan/.
>>> wine is a directory: No such file or directory
>>> 2008-11-02 13:42:02 E [afr_self_heal.c:123:afr_lds_setdents_cbk] home:
>>> op_ret=-1 op_errno=2
>>> 2008-11-02 13:42:02 E [fuse-bridge.c:398:fuse_entry_cbk] glusterfs-fuse:
>>> 50:
>>> LOOKUP() /gordan => -1 (Input/output error)
>>>
>>> The .wine directory it is complaining about is actually a symling to a
>>> directory on a local file system.
>>>
>>> The above issue exhibits itself on both of the nodes when the 2nd node
>>> has
>>> the gluster daemon up and running. But when the 2nd node is removed and
>>> only
>>> one node remains, it starts working OK again.
>>>
>>> Gordan
>>>
>>> Christopher Hawkins wrote:
>>>>
>>>> When I upgraded I had only one problem... The way to specify a transport
>>>> type in the config file for server and client (I believe?) changed from:
>>>> option transport-type tcp/client
>>>> to:
>>>> option transport-type socket
>>>> option address-family inet
>>>>
>>>> See the wiki page here:
>>>>  http://www.gluster.org/docs/index.php/Changes_from_1.3_to_1.4
>>>>
>>>> Other than that everything worked great. I tried rolling back to 1.3 at
>>>> one point too and that worked fine, so if you needed to go back it
>>>> should
>>>> work...
>>>>
>>>> Chris
>>>>
>>>> ----- Original Message -----
>>>> From: "Gordan Bobic" <gordan at bobich.net>
>>>> To: "Gluster List" <gluster-devel at nongnu.org>
>>>> Sent: Wednesday, October 29, 2008 1:16:16 PM GMT -05:00 US/Canada
>>>> Eastern
>>>> Subject: RE: [Gluster-devel] Weird lock-ups
>>>>
>>>> Ah yes, I remember the inconsistency / splitbrain issue race condition
>>>> being discussed and demonstrated.
>>>>
>>>> Is migration from 1.3.x to 1.4.x transparent? Can I use the same
>>>> pre-populated backing store from 1.3.x, with xattrs set as 1.3.x set
>>>> them?
>>>> Or is a backup/restore required?
>>>>
>>>> And if there is a problem, is the downgrade path clean (i.e. can I just
>>>> put 1.3.x back if 1.4.x goes wrong for me)? Are there any changes to
>>>> xattrs
>>>> used/set that can cause compatibility problems?
>>>>
>>>> Thanks.
>>>>
>>>> Gordan
>>>>
>>>> -----Original Message-----
>>>> From: "KwangErn Liew" <ke.liew at gmail.com>
>>>> To: "Gordan Bobic" <gordan at bobich.net>
>>>> Cc: "Gluster List" <gluster-devel at nongnu.org>
>>>> Sent: 29/10/08 14:55
>>>> Subject: Re: [Gluster-devel] Weird lock-ups
>>>>
>>>> On Wed, Oct 29, 2008 at 12:09 AM, Gordan Bobic <gordan at bobich.net>
>>>> wrote:
>>>>
>>>>> KwangErn Liew wrote:
>>>>>
>>>>>> 1.3.x isn't exactly a usable release for AFR anymore.
>>>>>>
>>>>> That's pretty worrying. The "stable" release is unusable for AFR, but
>>>>> the
>>>>> pre-release is? Isn't that a bit backward? How stable is the
>>>>> pre-release?
>>>>>
>>>> Split-brain issue is known in 1.3.x
>>>>
>>>> More info
>>>>
>>>>
>>>> http://gluster-tmp.enix.org/docs/index.php/Understanding_AFR_Translator#Split_Brain
>>>>
>>>> The 1.4.x pre-release is in QA mode.
>>>>
>>>>
>>>> KwangErn
>>>>
>>>>
>>>>
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>>>
>>>
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>
>
>
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