Here is response from 'ulimit -a' command Is it the open files (-n) that needs to be bumped up and if so what is the process?
(/sbin) Ready(148)# ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited pending signals (-i) 4096 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 4096 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited > _____________________________________________ > From: Smith, Ann (ISD, IT) > Sent: Friday, January 02, 2009 4:30 PM > To: 'Linux on 390 Port' > Subject: SLES10 - how to set ulimit > > I am building virtual servers to run Websphere MQ broker. > I had to set various kernel parameters (including setting fs.file-max > = 32768) > > I am confused by some of the doc I received from the MQ folks- see > below: > * "Set ulimit to 4096. When dealing with large numbers of open > sockets (a single socket per concurrent connection) the operating > system may limit the number of files that a single process can open at > one time. On UNIX, the limit for the number of files that a process > can open also applies to sockets, and therefore you need to increase > the maximum open file handles setting to reflect the expected number > of concurrent connections" > > The ulimit command has lots of options. > How can I determine what the defaults are (look at > /etc/security/limits.conf? or a ulimit option?) > How do I set ulimit for the id mqm if needed? > > > > > Ann Smith > Mainframe Systems Support -zVM and zLinux Support > Integrated Technology Delivery > IBM Global Service Integrated Operations At The Hartford > Work phone: 860-547-6110 > Pager: 800-204-6367 > Email: mailto:[email protected] > > > ************************************************************ This communication, including attachments, is for the exclusive use of addressee and may contain proprietary, confidential and/or privileged information. If you are not the intended recipient, any use, copying, disclosure, dissemination or distribution is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this communication and destroy all copies. ************************************************************ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
