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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=12774 child processes not releasing logfiles correctly (not handling signals?) Summary: child processes not releasing logfiles correctly (not handling signals?) Product: Apache httpd-2.0 Version: 2.0.40 Platform: PC OS/Version: Linux Status: NEW Severity: Major Priority: Other Component: worker AssignedTo: bugs@httpd.apache.org ReportedBy: [EMAIL PROTECTED] Note: this may be related to http://nagoya.apache.org/bugzilla/show_bug.cgi? id=12635 (bug #12635) the following was written on Aug. 27: I have an apache 2.0.40 server using the worker MPM that's been running on a linux 2.2 kernel for about 4 days now, and every day I run apache -k graceful after rotating the logs (the program is named apache instead of httpd). It looks like that's not working for killing the child processes, though. A look at ps shows 271 apache processes running, most of which have been started sometime today. There are 6, though, that have not: root 12526 0.0 0.2 5164 2152 ? S Aug24 0:51 lt-apache web 23633 0.0 1.7 37328 16668 ? S Aug25 0:00 lt-apache web 23635 0.0 1.7 37328 16668 ? S Aug25 0:04 lt-apache web 23681 0.0 1.7 37328 16668 ? S Aug25 0:00 lt-apache web 2754 0.0 1.6 37128 16372 ? S Aug25 0:00 lt-apache web 2755 0.0 1.6 37128 16372 ? S Aug25 0:04 lt-apache web 2797 0.0 1.6 37128 16372 ? S Aug25 0:00 lt-apache One of them is my root process, one of them is presumably cgid, and the other five look to be the control processes for the threads I have running. A look in /proc for these processes shows that the root process has all my current log files open. The other six, though, have the log files from the day they were started open (a look in /proc/2797/fd shows that most of the log files it has open are deleted). This doesn't cause any problems with logging, since the threads that are spawned are using the correct log files. The problem it causes is that the 500MB that the deleted logfiles take up won't be freed from the filesystem until I stop and restart apache. I've tried apache -k graceful, apache -k restart, and kill -HUP 12526 and none of them have caused the children to close their logfiles. -- end of original message -- Here's the ps of my apache today. It was last restarted (apache -k stop, killall lt-apache, /etc/init.d/apache start) on Sept. 16th sara:/home/michael# ps auwx | grep apache | grep Sep root 31708 0.0 0.2 5164 2896 ? S Sep16 0:28 lt-apache web 22401 0.0 1.7 58908 16620 ? S Sep16 0:00 lt-apache web 22402 0.0 1.7 58908 16620 ? S Sep16 0:03 lt-apache web 22540 0.0 1.7 58908 16620 ? S Sep16 0:00 lt-apache web 9222 0.0 1.6 83940 15796 ? S Sep16 0:00 lt-apache web 9223 0.0 1.6 83940 15796 ? S Sep16 0:03 lt-apache web 9243 0.0 1.6 83940 15796 ? S Sep16 0:00 lt-apache web 30047 0.0 1.4 57984 14140 ? S Sep17 0:00 lt-apache web 30048 0.0 1.4 57984 14140 ? S Sep17 0:02 lt-apache web 30068 0.0 1.4 57984 14140 ? S Sep17 0:00 lt-apache web 13156 0.0 1.6 97008 16176 ? S Sep17 0:00 lt-apache web 13157 0.0 1.6 97008 16176 ? S Sep17 0:01 lt-apache web 13165 0.0 1.6 97008 16176 ? S Sep17 0:00 lt-apache web 14975 0.0 1.6 48444 16056 ? S Sep17 0:00 lt-apache web 14976 0.0 1.6 48444 16056 ? S Sep17 0:01 lt-apache web 15007 0.0 1.6 48444 16056 ? S Sep17 0:00 lt-apache sara:/home/michael# ps auwx | grep apache | wc -l 302 sara:/home/michael# A look at /proc for the root process shows all the right logfiles open: sara:/proc/31708# ls -al fd total 0 dr-x------ 2 root wheel 0 Sep 18 09:59 . dr-xr-xr-x 3 root wheel 0 Sep 18 09:59 .. lr-x------ 1 root wheel 64 Sep 18 09:59 0 -> /dev/null l-wx------ 1 root wheel 64 Sep 18 09:59 1 -> /dev/null l-wx------ 1 root wheel 64 Sep 18 09:59 10 - > /var/log/apache/manage-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 11 - > /var/log/apache/author-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 12 - > /var/log/apache/qz-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 13 - > /var/log/apache/qz-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 14 - > /var/log/apache/asstr-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 15 - > /var/log/apache/redirect-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 16 - > /var/log/apache/assmadmin-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 17 - > /var/log/apache/assm-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 18 - > /var/log/apache/assm-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 19 - > /var/log/apache/mcstories-access_log lrwx------ 1 root wheel 64 Sep 18 09:59 2 - > /var/log/apache/error.log l-wx------ 1 root wheel 64 Sep 18 09:59 20 - > /var/log/apache/mcstories-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 21 - > /var/log/apache/test-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 22 - > /var/log/apache/asstr-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 23 - > /var/log/apache/asstr-access_log lr-x------ 1 root wheel 64 Sep 18 09:59 24 -> pipe:[614447598] l-wx------ 1 root wheel 64 Sep 18 09:59 25 -> pipe:[614447598] lrwx------ 1 root wheel 64 Sep 18 09:59 26 - > /var/log/apache/error.log lrwx------ 1 root wheel 64 Sep 18 09:59 27 - > /var/log/apache/acctcgi-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 28 - > /var/log/apache/search-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 29 - > /var/log/apache/author-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 3 -> socket:[607040926] lrwx------ 1 root wheel 64 Sep 18 09:59 30 - > /var/log/apache/iflc-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 31 - > /var/log/apache/manage-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 32 - > /var/log/apache/asstr-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 33 - > /var/log/apache/redirect-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 34 - > /var/log/apache/assmadmin-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 35 - > /var/log/apache/assm-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 36 - > /var/log/apache/mcstories-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 37 - > /var/log/apache/test-error_log lrwx------ 1 root wheel 64 Sep 18 09:59 4 -> socket:[607040927] l-wx------ 1 root wheel 64 Sep 18 09:59 5 - > /var/log/apache/acctcgi-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 6 - > /var/log/apache/search-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 7 - > /var/log/apache/search-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 8 - > /var/log/apache/author-access_log l-wx------ 1 root wheel 64 Sep 18 09:59 9 - > /var/log/apache/iflc-access_log sara:/proc/31708# A look at one of the child processes (22401) shows the following: sara:/proc/22401# ls -al fd total 0 dr-x------ 2 root wheel 0 Sep 18 10:00 . dr-xr-xr-x 3 web www-data 0 Sep 18 10:00 .. lr-x------ 1 root wheel 64 Sep 18 10:00 0 -> /dev/null l-wx------ 1 root wheel 64 Sep 18 10:00 1 -> /dev/null l-wx------ 1 root wheel 64 Sep 18 10:00 10 - > /var/log/apache/manage-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 11 - > /var/log/apache/author-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 12 - > /var/log/apache/qz-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 13 - > /var/log/apache/qz-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 14 - > /var/log/apache/asstr-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 15 - > /var/log/apache/redirect-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 16 - > /var/log/apache/assmadmin-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 17 - > /var/log/apache/assm-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 18 - > /var/log/apache/assm-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 19 - > /var/log/apache/mcstories-access_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 2 - > /var/log/apache/error.log l-wx------ 1 root wheel 64 Sep 18 10:00 20 - > /var/log/apache/mcstories-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 21 - > /var/log/apache/test-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 22 - > /var/log/apache/asstr-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 23 - > /var/log/apache/asstr-access_log.new (deleted) lr-x------ 1 root wheel 64 Sep 18 10:00 24 -> pipe:[607040934] l-wx------ 1 root wheel 64 Sep 18 10:00 25 -> pipe:[607040934] lrwx------ 1 root wheel 64 Sep 18 10:00 26 - > /var/log/apache/error.log lrwx------ 1 root wheel 64 Sep 18 10:00 27 - > /var/log/apache/acctcgi-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 28 - > /var/log/apache/search-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 29 - > /var/log/apache/author-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 3 -> socket:[607040926] lrwx------ 1 root wheel 64 Sep 18 10:00 30 - > /var/log/apache/iflc-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 31 - > /var/log/apache/manage-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 32 - > /var/log/apache/asstr-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 33 - > /var/log/apache/redirect-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 34 - > /var/log/apache/assmadmin-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 35 - > /var/log/apache/assm-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 36 - > /var/log/apache/mcstories-error_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 37 - > /var/log/apache/test-error_log.new (deleted) lr-x------ 1 root wheel 64 Sep 18 10:00 38 -> pipe:[607357926] l-wx------ 1 root wheel 64 Sep 18 10:00 39 -> pipe:[607357926] lrwx------ 1 root wheel 64 Sep 18 10:00 4 -> socket:[607040927] l-wx------ 1 root wheel 64 Sep 18 10:00 5 - > /var/log/apache/acctcgi-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 6 - > /var/log/apache/search-access_log.new (deleted) lrwx------ 1 root wheel 64 Sep 18 10:00 63 -> socket:[607361473] l-wx------ 1 root wheel 64 Sep 18 10:00 7 - > /var/log/apache/search-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 8 - > /var/log/apache/author-access_log.new (deleted) l-wx------ 1 root wheel 64 Sep 18 10:00 9 - > /var/log/apache/iflc-access_log.new (deleted) sara:/proc/22401# The .new files are renames of the original logfiles by the debian savelog script. A look at the partition with our logs on it shows that these files are indeed deleted but still open: sara:/var/log# df . Filesystem 1k-blocks Used Available Use% Mounted on /dev/sda9 1517920 1129948 310864 79% /var/log sara:/var/log# du -s 593008 . sara:/var/log# I'd be happy to provide any additional information you need.... as it is I get a page every 3 days about my hard drive getting full, and have to do a hard stop and start of apache to fix it... --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
