Hello,
Thank you very much for your response. My response is very late, because
I was ill and tried to solve
out something on my own afterwards, which in the end did not work out.
Sadly, I had to reboot the virtual container again yesterday.
Mrinal Kanti:
>
> You may want to provide more information than that. For example:
> - The software versions (Java, Tomcat, MySQL, Magnolia etc).
> - Memory (GC) configuration for tomcat.
> - Number of magnolia instances.
> - Monitoring output from vmstat and top.
>
Linux Kernel: 2.6.18-028stab068.3-ent
Java Runtime version: 1.6.0_17-b04 (Sun)
Tomcat version: 6.0.26.0
MySQL: Ver 14.12 Distrib 5.0.51a, for debian-linux-gnu (i486) using
readline 5.2
Magnolia version: 4.3.2
There is only one public instance on my remote system. MySQL is on same
machine.
This is my status after fresh reboot:
vmstat:
procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy
id wa
0 0 0 452340 0 0 0 0 133 364 0 0 0 0
96 4
free -m:
total used free shared
buffers cached
Mem: 1024 582 441 0 0 0
-/+ buffers/cache: 582 441
Swap: 0 0 0
top:
http://pastebin.com/Qt3VfqPJ
ps -ef -m:
http://pastebin.com/fvSWkCJM
cat etc/proc/user_beancounters:
http://pastebin.com/DQpbJxkz
ps is showing so many entries of tomcat and mysql even when not busy. Is
this normal?
What else is needed?
> 60% memory consumption at reboot seems pretty high assuming that there
> is virtually no load.
>
> Seems like you have configured mysql pesrsistence for jackrabbit. Try
> using file based persistence as an alternative. If MySQL is also
> running on the same machine then it could be too overloaded depending
> upon the mysql settings. If your mysql connections are getting lost
> midway, that could possibly mean that the vm controller is trying to
> throttle resources or putting a cap on resource utilization for your
> virtual node. Check with your hosting provider if this is the case but
> try testing you application on a local dedicated server first. Setting
> "autoReconnect" may alleviate your problem temporarily, but the
> problem may continue to manifest in other ways.
>
> HTH.
There are certain resource limitations for me (see user_beancounters).
Which of these limitations does magnolia influence? Maybe there are
minimum requirements for magnolia on a system with certain parallel
visitors?
I would prefer to configure the system to work with mysql instead of
switching to the file based solution.
Isn't it the job of magnolia to handle new mysql connections with care?
Thanks again for helping me.
Regards,
Jules.
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