<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> There is a possibility that your app may have a memory leak. Google for memory leak detectors to see if there’s a freeware tool for you to run to get some info. One thing you can try is increase the swap space temporarily ( mkswap, add to /etc/fstab and swapon –va) and see if the additional swap space is also being taken up. If that is the case then you definitely have a problem app on your hands. Hth, Kalyan -----Original Message----- From: redhat-sysadmin-list-bounces@redhat.com [mailto:redhat-sysadmin-list-bounces@redhat.com] On Behalf Of smal@ccmb.res.in Sent: Thursday, February 01, 2007 10:01 PM To: redhat-sysadmin-list@redhat.com Subject: to recover the swap memory <table class=MsoNormalTable border=1 cellpadding=0 width=587 style='width:440.25pt; margin-left:.5in;border:none;border-left:solid blue 1.0pt'> <tr> <td style='border:none;padding:.75pt .75pt .75pt 3.75pt'> Dear All I shall greatly appreciate and honour, if anyone can suggest the solution to the below mentioned issue. The O/S of the m/c. is RHEL AS 3.0 with kernel 2.4.21-20. with x86_64 and taroon update 3. The RAM is 2GB with swap memory another 2GB. The server is functioning as mail server and this is the only application which is loaded onto the system with a third party vendor's mail application package. For quite some time the swappable memory itself was found to be consumed rather exhausted to its full quota of 2GB by the application resulting in no free memory for subsequents tasks to execute. As a result of this not only the application but also the system itself becomes frozen/hangs. The system becomes inaccessible even through remote machines using rlogin or putty etc to revive. Being the mail sever it is not desirable to have such frequent interruption in its service. 1. The question is that how to retrieve/restore the swap memory back to its full quota? 2. How to restore the system when it attains hung state without using brute force / hot or cold boot? Your guidelines and suggestions shall be highly appreciable and valuable. with kind regards s.mahalingam S.Mahalingam Bioinformatics Centre Centre for Cellular and Molecular Biology Habsiguda, Uppal Road, Hyderabad 500 007, India. Ph:+91-40-27192773, 27192774, 27177814 +91-40-27160222 - 41 (20 Lines) Ext: 2773, 2774 Fax: :+91-40-27160591, 27160311 E-mail: smal@ccmb.res.in smal8@yahoo.com http://www.ccmb.res.in _______________________________________________ rhn-users mailing list rhn-users@redhat.com https://www.redhat.com/mailman/listinfo/rhn-users </td> </tr> </table> </div> </body> </html> <hr size=1> This transmission may contain information that is privileged, confidential, legally privileged, and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable, for any loss or damage arising in any way from its use. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you.