[ZODB-Dev] blocked transactions?

Chris Withers chris at simplistix.co.uk
Wed Oct 13 09:18:48 EDT 2010


On 13/10/2010 14:06, Jim Fulton wrote:
> On Wed, Oct 13, 2010 at 4:02 AM, Chris Withers<chris at simplistix.co.uk>  wrote:
>> Hi All,
>>
>> What do the following error message mean:
>>
>> ------
>> 2010-10-12T17:05:58 INFO ZEO.StorageServer (24471/192.168.100.100:54407)
>> Transaction blocked waiting for storage. Clients waiting: 3.
>> ------
>>
>> 2010-10-12T17:07:16 INFO ZEO.StorageServer (24471/192.168.100.105:50112)
>> Blocked transaction restarted.  Clients waiting: 2
>>
>> ...and would ZODB 3.10 help fix them?
>
> These aren't error messages. You can tell because they say "INFO".

If you say so ;-)

Their occurences coincided with an app server cluster of 4 clients 
locking up completely...

I would dearly love to know why that happened. Any way to interrogate a 
running zeo server to find out what it thinks it's up to?

Chris

-- 
Simplistix - Content Management, Batch Processing & Python Consulting
             - http://www.simplistix.co.uk


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