Too many open files

[avella]

It is now more than one month that quite often, especially on nights and weekends, Zimbra crashes, just starting from the tomcat service and catalina.out reports either:
*** org.apache.tomcat.util.net.PoolTcpEndpoint acceptSocket
GRAVE: Endpoint [SSL: ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=7071]] ignored exception: java.net.SocketException: Too many open files
***

or:
*** org.apache.tomcat.util.net.PoolTcpEndpoint acceptSocket
GRAVE: Endpoint [SSL: ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=443]] ignored exception: java.net.SocketException: Too many open files
***

Does any one knows a fix to this? We are really getting mad and the users getting very very angry and continuously ask for a mail software change...

[mmorse]

Welcome to the forums,

Could you run zmcontrol -v and paste your output? -thanks (you can put it in your forum profile as well for easier reference)

[dijichi2]

post the output of these commands:

sysctl -a |grep 'fs.file'
grep zimbra /etc/security/limits.conf

the sysctl command returns the total number of filehandles available to the system. if you do:
lsof |grep zim |wc -l
it will give you a crude estimate of how many processes zimbra is running (it also runs some commands as root/other users so not exactly accurate)

also you don't say what os you're running

[avella]

Thanks in advance for your help.

$ uname -a

Linux 2.6.20.12 #3 SMP Wed Jun 6 18:43:02CEST 2007 i686 i686 i386 GNU/Linux


$ zmcontrol -v


Release 4.5.10_GA_1575.FC5_20071117095155 FC5 FOSS edition

$ lsof | grep zim | wc -l
6057

$ cat /proc/sys/fs/file-nr
5928 0 295562

$ sysctl -a |grep 'fs.file'
fs.file-max = 295562
fs.file-nr = 5872 0 295562

$ lsof | grep zim | wc -l
6054

$ lsof | grep zim | wc -l
6005

and in the file /etc/security/limits.conf we have:

zimbra soft nofile 10000
zimbra hard nofile 10000