https://bugzilla.wikimedia.org/show_bug.cgi?id=28493

--- Comment #5 from Roan Kattouw <[email protected]> 2011-04-12 10:51:47 
UTC ---
Censored sample of dberror.log:

Tue Apr 12 6:35:04 UTC 2011     srv254  enwiki  Error connecting to 10.0.6.22:
Can't connect to MySQL server on '10.0.6.22' (4) (10.0.6.22)
Tue Apr 12 6:35:15 UTC 2011     srv265  dewiki  User::invalidateCache  
10.0.6.33       1205    Lock wait timeout exceeded; Try restarting transaction
(10.0.6.33)      UPDATE  `user` SET user_touched = 'CENSORED' WHERE user_id =
'CENSORED'
Tue Apr 12 6:51:14 UTC 2011     srv278  ruwiki  GlobalUsage::insertLinks       
10.0.6.41       1062    Duplicate entry
'Houston_City_Hall_from_Hermann_Square_(HDR).jpg-ruwiki-4401' for key 'PRIMARY'
(10.0.6.41)     INSERT  INTO `globalimagelinks`
(gil_wiki,gil_page,gil_page_namespace_id,gil_page_namespace,gil_page_title,gil_to)
VALUES
('ruwiki','4401','0','','Заглавная_страница','Houston_City_Hall_from_Hermann_Square_(HDR).jpg')
Tue Apr 12 6:52:33 UTC 2011     srv163  frwiki  Job::pop        10.0.6.39      
1213    Deadlock found when trying to get lock; Try restarting transaction
(10.0.6.39)  DELETE FROM `job` WHERE job_id = '136559964'

Censored sample of grep -i fatal apache.log :
Apr 12 07:13:18 10.0.8.3 apache2[6295]: PHP Fatal error:  Maximum execution
time of CENSORED seconds exceeded in
/usr/local/apache/common-local/php-1.17/includes/parser/Parser.php on line 3202
Apr 12 07:19:48 10.0.8.2 apache2[3887]: PHP Fatal error:  Allowed memory size
of CENSORED bytes exhausted (tried to allocate CENSORED bytes) in
/usr/local/apache/common-local/php-1.17/includes/parser/LinkHolderArray.php on
line 265
Apr 12 08:48:56 10.0.8.18 apache2[14920]: PHP Fatal error:  Call to a member
function isRedirect() on a non-object in
/usr/local/apache/common-local/php-1.17/extensions/Collection/Collection.php on
line 369

As you can see the DB servers in dberror.log and the srv servers in apache.log
are stored as IP addresses, so you'd need to resolve those:

$ host 10.0.8.18
18.8.0.10.in-addr.arpa domain name pointer srv268.pmtpa.wmnet.

I'm not sure the censoring of the limits in apache.log was necessary, but I do
think we'll want to censor SQL queries before posting them to a public channel.
There is code for this in MW already (censoring and generalizing SQL queries
for profiling purposes), somewhere.

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