5 Oct
2010
5 Oct
'10
8:04 p.m.
Hi,
I'm facing some trouble with attachments becoming empty (zero bytes) after some time
they were uploaded. I'm using XWiki Enterprise 2.4.30451. I've searched the mail
archives and it seems to exist a bug in the cache coherency. I could not find anything
related on JIRA.
My -Xms and -Xmx are both 768m. Although my max packet size on MySQL is 20Mb for
attachments, the files that are becoming empty are docs, pictures and xls's of a few
Kbytes.
Can someone point me some cause and solution on this please?
Regards,
Ramon Gomes Brandão
5 Oct
5 Oct
10:14 p.m.
This is almost definitely caused by the attachment not saving properly. Despite the
failure to save,
the cache holds the attachment for a time but eventually it is cleared and the attachment
appears to
vanish. The cache inconsistency is fixed as of 2.5M1.
As far as the attachment not saving properly and showing no sign, usually we start by
blaming mysql
max_packet_size. If you upload an attachment about the size of the largest attachment you
ahve
uploaded so far, check the tomcat log and you will probably see an exception trace. This
will tell
you what caused the problem.
Caleb
On 10/05/2010 02:04 PM, Ramon Gomes Brandão - SERINT wrote:
Hi,
I'm facing some trouble with attachments becoming empty (zero bytes) after some time
they were uploaded. I'm using XWiki Enterprise 2.4.30451. I've searched the mail
archives and it seems to exist a bug in the cache coherency. I could not find anything
related on JIRA.
My -Xms and -Xmx are both 768m. Although my max packet size on MySQL is 20Mb for
attachments, the files that are becoming empty are docs, pictures and xls's of a few
Kbytes.
Can someone point me some cause and solution on this please?
Regards,
Ramon Gomes Brandão
_______________________________________________
users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
10:54 p.m.
Caleb James DeLisle wrote:
This is almost definitely caused by the attachment not
saving properly. Despite the failure to save,
the cache holds the attachment for a time but eventually it is cleared and the attachment
appears to
vanish. The cache inconsistency is fixed as of 2.5M1.
As far as the attachment not saving properly and showing no sign, usually we start by
blaming mysql
max_packet_size. If you upload an attachment about the size of the largest attachment you
ahve
uploaded so far, check the tomcat log and you will probably see an exception trace. This
will tell
you what caused the problem.
But, please, why does the failure happen once in a bunch and not always?
Thanks!
--
Ricardo Rodríguez
CTO
eBioTIC.
Life Sciences, Data Modeling and Information Management Systems
6 Oct
6 Oct
1:04 a.m.
This will only happen to attachments which fail to upload, I'm guessing this only
happens on the
largest attachments. You will find a lot more information inside your tomcat log. You
might try
searching the logs for "XWikiHibernateAttachmentStore".
Caleb
On 10/05/2010 04:54 PM, [Ricardo Rodriguez] eBioTIC. wrote:
Caleb James DeLisle wrote:
This is almost definitely caused by the
attachment not saving properly. Despite the failure to save,
the cache holds the attachment for a time but eventually it is cleared and the attachment
appears to
vanish. The cache inconsistency is fixed as of 2.5M1.
As far as the attachment not saving properly and showing no sign, usually we start by
blaming mysql
max_packet_size. If you upload an attachment about the size of the largest attachment you
ahve
uploaded so far, check the tomcat log and you will probably see an exception trace. This
will tell
you what caused the problem.
But, please, why does the failure happen once in a bunch and not always?
Thanks!
11:20 a.m.
Caleb James DeLisle wrote:
This will only happen to attachments which fail to
upload, I'm guessing this only happens on the
largest attachments. You will find a lot more information inside your tomcat log. You
might try
searching the logs for "XWikiHibernateAttachmentStore".
Caleb
There they are logged all failures. Thanks! Should this errors trigger a
warning in the web interface as some other problems do?
But there must be anything else. Some attachments fail once, then
succeed on a next attempt. Without changing anything. I've seen this in
old installations. I'll check if that is still true with XE/XEM 2.4.30451.
Greetings!
Ricardo
--
Ricardo Rodríguez
CTO
eBioTIC.
Life Sciences, Data Modeling and Information Management Systems
5191
days inactive
5192
days old
4 comments
3 participants
participants (3)
-
[Ricardo Rodriguez] eBioTIC. -
Caleb James DeLisle -
Ramon Gomes Brandão - SERINT