Re: [xwiki-users] BUG: Attachments become empty after a while

2010-10-06 Thread [Ricardo Rodriguez] eBioTIC.

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

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[xwiki-users] BUG: Attachments become empty after a while

2010-10-05 Thread Ramon Gomes Brandão - SERINT
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

 

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Re: [xwiki-users] BUG: Attachments become empty after a while

2010-10-05 Thread Caleb James DeLisle
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
 
  
 
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Re: [xwiki-users] BUG: Attachments become empty after a while

2010-10-05 Thread [Ricardo Rodriguez] eBioTIC.

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
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Re: [xwiki-users] BUG: Attachments become empty after a while

2010-10-05 Thread Caleb James DeLisle
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!
 

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