https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507954#M16775 Take care "slurping" big files into perl:<BR /><BR />while (<FILE>) {<BR />}<BR /><BR />This will map the whole file into memory. If you need to read a very large file, you need to read / seek / etc.<BR /><BR />If not that, then you'll need to debug your script.</FILE> Tue, 22 Mar 2005 12:57:37 GMT W Sanders_1 2005-03-22T12:57:37Z https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507949#M16770 I have a Linux 8 server , used for sendmail , openwebmail. It has perl5.8.0.<BR /><BR />All of sudden last 2 days , server periodically not responding , i.e. not able to telnet, send / receive mails , but able to ping that server. We need to restart the server periodically due to this issue.<BR /><BR />I checked top command , and found Perl5.8.0 utilising almost all memory and cpu.<BR /><BR />I need your help.<BR />Also any script , it will check and kill only perl5.8.0 process , use for cron.<BR /><BR />Thx.<BR /><BR />Abhijeet<BR /><BR /> Sat, 19 Mar 2005 00:46:21 GMT https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507949#M16770 Abhijeet_3 2005-03-19T00:46:21Z https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507950#M16771 There is no problem to kill perl processes ["killall perl"], but I recommend you to upgrade you linux box to supported linux version with updated webmail, etc.<BR /><BR />RHEL4 is today's RH "commercial" linux, you can take RHEL free clone Pie Box or CentOS. Sun, 20 Mar 2005 11:04:43 GMT https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507950#M16771 Vitaly Karasik_1 2005-03-20T11:04:43Z https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507951#M16772 which perl script is it? what does it do? did you write it? can you post it here? does the script stay running all the time? perhaps you could run it every hour?<BR />never seen perl act like this before, so it is difficult to say what is wrong with it just by saying it takes all memory. Mon, 21 Mar 2005 02:34:36 GMT https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507951#M16772 dirk dierickx 2005-03-21T02:34:36Z https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507952#M16773 hi abhijeet,<BR /><BR />as grik told you, you first find out which application is using perl, you might have some mailing related application which is using perl scripting for some purpose. Mon, 21 Mar 2005 06:41:56 GMT https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507952#M16773 kcpant 2005-03-21T06:41:56Z https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507953#M16774 Hi Abhijeet ,<BR /><BR /> What does it do? Which application start is? You should find out and disable it.<BR /><BR />NiCK Tue, 22 Mar 2005 03:43:50 GMT https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507953#M16774 NiCK_76 2005-03-22T03:43:50Z https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507954#M16775 Take care "slurping" big files into perl:<BR /><BR />while (<FILE>) {<BR />}<BR /><BR />This will map the whole file into memory. If you need to read a very large file, you need to read / seek / etc.<BR /><BR />If not that, then you'll need to debug your script.</FILE> Tue, 22 Mar 2005 12:57:37 GMT https://community.hpe.com/t5/operating-system-linux/linux-out-of-memory-issue-due-to-perl/m-p/3507954#M16775 W Sanders_1 2005-03-22T12:57:37Z