14 Jan
2014
14 Jan
'14
12:22 p.m.
Hello everyone,
I'm working with a XWiki Enterprise 2.3 on tomcat and Oracle 10;
Since 2 or 3 days, when we upload a new file to a page , the file is
available during 1 min then the file size change to 0kb ;
Any idea?
Thanks for help
Patrick
15 Jan
15 Jan
12:46 p.m.
New subject: [xwiki-users] Attached Files size to 0kb after upload
Hi Patrick,
I'm working with a XWiki Enterprise 2.3 on tomcat
and Oracle 10;
Since 2 or 3 days, when we upload a new file to a page , the file is
available during 1 min then the file size change to 0kb ;
It is not directly related, but I have seen a similar effect when using XWiki with
a mySQL DB, which had a far too small "max_allowed_packet" config on the mySQL
server.
Somehow an error was generated in the DB Server, but not properly propagated to the
application.
Maybe there is something similar in your case, even though the DB Server is different.
There should be an error on the DB Server in that case.
Hope this helps,
Clemens
4:34 p.m.
New subject: [xwiki-users] Attached Files size to 0kb after upload
On 01/15/2014 06:46 AM, Clemens Klein-Robbenhaar wrote:
Hi Patrick,
Yes, a database error is the general cause for this kind of behavior.
What's happening is that the document is modified in memory to have the
right attachment, it is placed in cache, but trying to save it to the
database fails. As long as the document (and its attachment) is still in
the cache, it will display fine. Once the attachment is evicted from the
cache, trying to load it from the database will fail.
However, in a transactional database I would expect the error to abort
the whole thing and be displayed to the user when uploading.
--
Sergiu Dumitriu
http://purl.org/net/sergiu
I'm working with a XWiki Enterprise 2.3 on
tomcat and Oracle 10;
Since 2 or 3 days, when we upload a new file to a page , the file is
available during 1 min then the file size change to 0kb ;
It is not directly related, but I have seen a similar effect when using XWiki with
a mySQL DB, which had a far too small "max_allowed_packet" config on the mySQL
server.
Somehow an error was generated in the DB Server, but not properly propagated to the
application.
Maybe there is something similar in your case, even though the DB Server is different.
There should be an error on the DB Server in that case.
Hope this helps,
Clemens
5:24 p.m.
New subject: [xwiki-users] Attached Files size to 0kb after upload
Thanks Clemens & Sergiu,
Problem solved, The table space was almost full (98-99%).
Now looking to migrate Xwiki 2.3 to 5.3 with a db of 20 gb. :/
Any suggestion, best practice or experiences?
2014/1/15 Sergiu Dumitriu <sergiu(a)xwiki.org>
On 01/15/2014 06:46 AM, Clemens Klein-Robbenhaar
wrote:
--
Patrick Moens
Portable LU : +352 661/461.459
Email : patrick.moens(a)gmail.com
Hi Patrick,
XWiki with a mySQL DB, which had a far too small "max_allowed_packet"
config on the mySQL server.
I'm working with a XWiki Enterprise 2.3 on
tomcat and Oracle 10;
Since 2 or 3 days, when we upload a new file to a page , the file is
available during 1 min then the file size change to 0kb ;
It is not directly related, but I have seen a similar effect when using Somehow an error was generated in the DB Server,
but not properly
propagated to the application.
Maybe there is something similar in your case, even though the DB Server
is
different. There should be an error on the DB Server in that case.
Hope this helps,
Clemens
Yes, a database error is the general cause for this kind of behavior.
What's happening is that the document is modified in memory to have the
right attachment, it is placed in cache, but trying to save it to the
database fails. As long as the document (and its attachment) is still in
the cache, it will display fine. Once the attachment is evicted from the
cache, trying to load it from the database will fail.
However, in a transactional database I would expect the error to abort
the whole thing and be displayed to the user when uploading.
--
Sergiu Dumitriu
http://purl.org/net/sergiu
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users mailing list
users(a)xwiki.org
http://lists.xwiki.org/mailman/listinfo/users
16 Jan
16 Jan
1:03 p.m.
New subject: [xwiki-users] Attached Files size to 0kb after upload
On 01/15/2014 05:24 PM, Patrick Moens wrote:
Thanks Clemens & Sergiu,
Problem solved, The table space was almost full (98-99%).
Now looking to migrate Xwiki 2.3 to 5.3 with a db of 20 gb. :/
Any suggestion, best practice or experiences?
Biggest DB here has been just 10 GB ... however the main problem
was about how to find places for backups.
If possible, then I recommend copying the complete database and
try to migrate the the copy with a separate 5.3-XWiki installation.
If that works, replace the 2.3-installation with the 5.3-installation.
That way, if something went wrong, you can repeat the complete process
without bearing the actually running 2.3-instance.
No matter how full the DB Server actually is I would recommend making
at least backups before attempting a migration over 3 major release versions.
The main configuration change I remember is the introduction of
of the "environment.permanentDirectory" (in xwiki.properties).
Because this directory also contains the index for the Solr which
needs to be build after the update, expect the box to be quite
a bit busy after firing up got the first time ...
2014/1/15 Sergiu Dumitriu <sergiu(a)xwiki.org>
> On 01/15/2014 06:46 AM, Clemens Klein-Robbenhaar wrote:
>> Hi Patrick,
>>> I'm working with a XWiki Enterprise 2.3 on tomcat and Oracle 10;
>>>
>>> Since 2 or 3 days, when we upload a new file to a page , the file is
>>> available during 1 min then the file size change to 0kb ;
>>>
>> It is not directly related, but I have seen a similar effect when using
> XWiki with a mySQL DB, which had a far too small "max_allowed_packet"
> config on the mySQL server.
>> Somehow an error was generated in the DB Server, but not properly
> propagated to the application.
>>
>> Maybe there is something similar in your case, even though the DB Server
> is different. There should be an error on the DB Server in that case.
>>
>> Hope this helps,
>> Clemens
>
> Yes, a database error is the general cause for this kind of behavior.
> What's happening is that the document is modified in memory to have the
> right attachment, it is placed in cache, but trying to save it to the
> database fails. As long as the document (and its attachment) is still in
> the cache, it will display fine. Once the attachment is evicted from the
> cache, trying to load it from the database will fail.
>
> However, in a transactional database I would expect the error to abort
> the whole thing and be displayed to the user when uploading.
>
> --
> Sergiu Dumitriu
> http://purl.org/net/sergiu
> _______________________________________________
> users mailing list
> users(a)xwiki.org
> http://lists.xwiki.org/mailman/listinfo/users
>
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4 comments
3 participants
participants (3)
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Clemens Klein-Robbenhaar -
Patrick Moens -
Sergiu Dumitriu