• Article Type: General
• Product: Aleph
• Product Version: 18.01

Description:
Since approximately 9/10/09 we have been experiencing random pc_server failures on our production Aleph system. At random times during the day, we will receive calls stating the libraries can no longer login to any Aleph modules. When we attempt any type of command on the server we see the message: "ld.so.1: rts32: fatal: /exlibris/aleph/a18_1/aleph/exe/rts32: mprotect failed: Resource temporarily unavailable Killed".

There are variations of the message but all usually begin with ld.so.1:rts32: fatal. The problem can be remedied at that point in time by restarting the pc_servers via the Util W menu. We don't have the problem everyday but on other days it happens a few times.

Resolution:
It seems this problem is related to a difficult-to-diagnose memory leak. As a workaround, the site has added restarts of the pc_server to their job_list on the following schedule:

9 am
11 am
1 pm
3 pm
5 pm
7 pm
9 pm
midnight

There've been a couple times that the site has had to manually restart the servers despite these auto-restarts but, generally, it’s working ok.

• Article last edited: 10/8/2013