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masterross 11-11-2006 07:38 AM
Apache probs?
 
hi there,

my Server is:

CentOS 4.4x
Kernel 2.6.16.18
Dual Xeon 3.2GHz
4GB RAM

Apache v1.3.37
PHP 4.4.4
MySQL 4.1.21
eAceelerator v0.9.5

httpd.conf:

Timeout 300
KeepAlive Off
MaxKeepAliveRequests 100
KeepAliveTimeout 4
MinSpareServers 15
MaxSpareServers 20
StartServers 15
MaxClients 200
MaxRequestsPerChild 500

--------------------------------------------

the prob is that recently apache child dont exit and the apache just freeze.
i'm using vBulletin board with torrent mod.


in error_log i have these:

Code:
[Sat Nov 11 06:50:03 2006] [warn] child process 20334 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:03 2006] [warn] child process 20335 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:03 2006] [warn] child process 20336 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:03 2006] [warn] child process 20338 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:03 2006] [warn] child process 20339 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:03 2006] [warn] child process 20340 still did not exit, sending a SIGTERM
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
[Sat Nov 11 06:50:03 2006] [warn] child process 20341 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:04 2006] [warn] child process 20346 still did not exit, sending a SIGTERM
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
[Sat Nov 11 06:50:04 2006] [warn] child process 20360 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:04 2006] [warn] child process 20436 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:04 2006] [warn] child process 20453 still did not exit, sending a SIGTERM
[Sat Nov 11 06:50:04 2006] [warn] child process 20488 still did not exit, sending a SIGTERM
*** glibc detected *** double free or corruption (!prev): 0x080cb688 ***
[Sat Nov 11 06:50:04 2006] [warn] child process 20787 still did not exit, sending a SIGTERM

any coments?

unSpawn 11-12-2006 06:26 AM
glibc detected *** double free or corruption
When did this start happening? Can you trace back what changed recently wrt upgrades/installations? Is there an env var called "MALLOC_CHECK_" in use on the box? Try setting it to "2" (generate error, don't kill). Do you run only stock software or custom compiled as well? In any case I'd search each apps bug tracker for similar problems. If nothing turns up you could try disabling stuff to determine where the problem lies. It could be the problem already was there but that an upgrade of say Glibc made the problems visible. Check for instance if you can run PHP with Zend Optimizer but w/o acellerator, etc, etc. I've seen at least one report pointing to it.

masterross 11-12-2006 10:42 AM
hi,

thanks for reply

i think wasnt error before update
the problem is that it was big update
here is the log:

Code:
Oct 15 04:05:50 Updated: libgcc.i386 3.4.6-3
Oct 15 04:05:50 Updated: hwdata.noarch 0.146.23.EL-1
Oct 15 04:06:14 Updated: glibc-common.i386 2.3.4-2.25
Oct 14 20:06:21 Updated: glibc.i686 2.3.4-2.25
Oct 14 20:06:23 Updated: bash.i386 3.0-19.3
Oct 14 20:06:23 Updated: libselinux.i386 1.19.1-7.2
Oct 14 20:06:23 Updated: chkconfig.i386 1.3.13.4-1
Oct 14 20:06:24 Updated: e2fsprogs.i386 1.35-12.4.EL4
Oct 14 20:06:25 Updated: openssl.i686 0.9.7a-43.14
Oct 14 20:06:25 Updated: popt.i386 1.9.1-18_nonptl
Oct 14 20:06:26 Updated: grep.i386 2.5.1-32.2
Oct 14 20:06:26 Updated: sed.i386 4.1.2-5.EL4
Oct 14 20:06:26 Updated: audit-libs.i386 1.0.14-1.EL4
Oct 14 20:06:27 Updated: libstdc++.i386 3.4.6-3
Oct 14 20:06:27 Updated: newt.i386 0.51.6-9.rhel4
Oct 14 20:06:28 Updated: rpm-libs.i386 4.3.3-18_nonptl
Oct 14 20:06:28 Updated: openldap.i386 2.2.13-6.4E
Oct 14 20:06:29 Updated: dbus.i386 0.22-12.EL.7
Oct 14 20:06:29 Updated: findutils.i386 1:4.1.20-7.el4.1
Oct 14 20:06:30 Updated: device-mapper.i386 1.02.07-4.0.RHEL4
Oct 14 20:06:31 Updated: centos-release.i386 6:4-4.2
Oct 14 20:06:32 Updated: binutils.i386 2.15.92.0.2-21
Oct 14 20:06:33 Updated: lvm2.i386 2.02.06-6.0.RHEL4
Oct 14 20:06:34 Updated: net-tools.i386 1.60-37.EL4.8
Oct 14 20:06:35 Updated: tar.i386 1.14-10.RHEL4
Oct 14 20:06:35 Updated: gzip.i386 1.3.3-16.rhel4
Oct 14 20:06:35 Updated: dbus-glib.i386 0.22-12.EL.7
Oct 14 20:06:35 Updated: bind-libs.i386 20:9.2.4-16.EL4
Oct 14 20:06:36 Updated: gpm.i386 1.20.1-71.RHEL4
Oct 14 20:06:37 Updated: sqlite.i386 3.3.3-1.2
Oct 14 20:06:38 Updated: OpenIPMI-libs.i386 1.4.14-1.4E.13
Oct 14 20:06:38 Updated: file.i386 4.10-2.EL4.4
Oct 14 20:06:38 Updated: python-sqlite.i386 1.1.7-1.2
Oct 14 20:06:41 Updated: groff.i386 1.18.1.1-3.EL4
Oct 14 20:06:41 Updated: audit.i386 1.0.14-1.EL4
Oct 14 20:06:41 Updated: cups-libs.i386 1:1.1.22-0.rc1.9.11
Oct 14 20:06:43 Updated: net-snmp-libs.i386 5.1.2-11.EL4.7
Oct 14 20:06:43 Updated: psmisc.i386 21.4-4.1
Oct 14 20:06:44 Updated: iproute.i386 2.6.9-3.EL4.3.centos4
Oct 14 20:06:46 Updated: glibc-headers.i386 2.3.4-2.25
Oct 14 20:06:48 Updated: glibc-devel.i386 2.3.4-2.25
Oct 14 20:06:48 Updated: cpio.i386 2.5-9.RHEL4
Oct 14 20:06:48 Updated: make.i386 1:3.80-6.EL4
Oct 14 20:06:49 Updated: iputils.i386 20020927-18.EL4.3
Oct 14 20:06:49 Installed: libgssapi.i386 0.8-1
Oct 14 20:06:50 Installed: nfs-utils-lib.i386 1.0.6-3
Oct 14 20:06:54 Updated: libstdc++-devel.i386 3.4.6-3
Oct 14 20:06:54 Updated: parted.i386 1.6.19-4.EL
Oct 14 20:06:55 Updated: cpp.i386 3.4.6-3
Oct 14 20:06:57 Updated: gcc.i386 3.4.6-3
Oct 14 20:06:57 Updated: lockdev.i386 1.0.1-6.2
Oct 14 20:06:57 Updated: libtool-libs.i386 1.5.6-4.EL4.1.c4.4
Oct 14 20:06:58 Updated: numactl.i386 0.6.4-1.28
Oct 14 20:06:58 Updated: libf2c.i386 3.4.6-3
Oct 14 20:06:59 Updated: wireless-tools.i386 1:28-0.pre16.3.3.EL4
Oct 14 20:07:05 Updated: valgrind.i386 1:3.1.1-1.EL4
Oct 14 20:07:10 Updated: valgrind-callgrind.i386 0.10.1-2.EL4
Oct 14 20:07:13 Updated: gcc-g77.i386 3.4.6-3
Oct 14 20:07:19 Updated: libtool.i386 1.5.6-4.EL4.1.c4.4
Oct 14 20:07:19 Updated: lockdev-devel.i386 1.0.1-6.2
Oct 14 20:07:20 Updated: gcc-c++.i386 3.4.6-3
Oct 14 20:07:22 Updated: systemtap.i386 0.5.8-1.EL4
Oct 14 20:07:23 Updated: OpenIPMI.i386 1.4.14-1.4E.13
Oct 14 20:07:23 Updated: man.i386 1.5o1-9.rhel4
Oct 14 20:07:24 Updated: rpm-build.i386 4.3.3-18_nonptl
Oct 14 20:07:24 Updated: gpm-devel.i386 1.20.1-71.RHEL4
Oct 14 20:07:24 Updated: bind-utils.i386 20:9.2.4-16.EL4
Oct 14 20:07:24 Updated: sysreport.noarch 1.3.15-6
Oct 14 20:07:24 Updated: dmraid.i386 1.0.0.rc11-3_RHEL4_U4
Oct 14 20:07:25 Updated: dbus-devel.i386 0.22-12.EL.7
Oct 14 20:07:27 Updated: openldap-devel.i386 2.2.13-6.4E
Oct 14 20:07:31 Updated: rpm-devel.i386 4.3.3-18_nonptl
Oct 14 20:07:31 Updated: newt-devel.i386 0.51.6-9.rhel4
Oct 14 20:07:31 Updated: ntsysv.i386 1.3.13.4-1
Oct 14 20:07:31 Updated: openssh-clients.i386 3.9p1-8.RHEL4.17
Oct 14 20:07:35 Updated: openssl-devel.i586 0.9.7a-43.14
Oct 14 20:07:36 Updated: e2fsprogs-devel.i386 1.35-12.4.EL4
Oct 14 20:07:36 Updated: libselinux-devel.i386 1.19.1-7.2
Oct 14 20:07:38 Updated: umb-scheme.i386 3.2-36.EL4
Oct 14 20:07:43 Updated: emacs-common.i386 21.3-19.EL.4
Oct 14 20:07:44 Updated: pciutils.i386 2.1.99.test8-3.2
Oct 14 20:07:45 Updated: gdb.i386 6.3.0.0-1.132.EL4
Oct 14 20:07:50 Updated: rpmdb-CentOS.i386 2:4.4-0.20060823
Oct 14 20:07:51 Updated: selinux-policy-targeted.noarch 1.17.30-2.140
Oct 14 20:07:51 Updated: redhat-rpm-config.noarch 8.0.32.1-4
Oct 14 20:07:51 Updated: cvs.i386 1.11.17-9.RHEL4
Oct 14 20:07:52 Updated: strace.i386 4.5.14-0.EL4.1
Oct 14 20:07:52 Updated: rsh.i386 0.17-25.4
Oct 14 20:07:53 Updated: apr.i386 0.9.4-24.5.c4.2
Oct 14 20:07:53 Updated: finger.i386 0.17-26.EL4.1
Oct 14 20:07:53 Updated: dos2unix.i386 3.1-21.2
Oct 14 20:07:53 Updated: lsof.i386 4.72-1.4
Oct 14 20:07:53 Updated: ltrace.i386 0.4-1.7.EL4
Oct 14 20:07:54 Updated: crash.i386 4.0-2.30
Oct 14 20:07:55 Updated: mailx.i386 8.1.1-36.EL4
Oct 14 20:07:55 Updated: pciutils-devel.i386 2.1.99.test8-3.2
Oct 14 20:08:01 Updated: libgcj-devel.i386 3.4.6-3
Oct 14 20:08:11 Updated: man-pages.noarch 1.67-9.EL4
Oct 14 20:08:12 Updated: emacs-leim.i386 21.3-19.EL.4
Oct 14 20:08:14 Updated: redhat-logos.noarch 1.1.26-1.centos4.4
Oct 14 20:08:16 Updated: comps.i386 2:4.4CENTOS-0.20060823
Oct 14 20:08:16 Updated: pam-devel.i386 0.77-66.17
Oct 14 20:08:18 Updated: coreutils.i386 5.2.1-31.4
Oct 14 20:08:20 Updated: pam.i386 0.77-66.17
Oct 14 20:08:25 Updated: python.i386 2.3.4-14.3
Oct 14 20:08:26 Updated: util-linux.i386 2.12a-16.EL4.20
Oct 14 20:08:27 Updated: rpm.i386 4.3.3-18_nonptl
Oct 14 20:08:27 Updated: procps.i386 3.2.3-8.4
Oct 14 20:08:28 Updated: rpm-python.i386 4.3.3-18_nonptl
Oct 14 20:08:28 Updated: rhnlib.noarch 1.8.7-4
Oct 14 20:08:28 Updated: python-urlgrabber.noarch 2.9.8-2
Oct 14 20:08:29 Updated: python-elementtree.i386 1.2.6-4.2.1
Oct 14 20:08:29 Updated: nscd.i386 2.3.4-2.25
Oct 14 20:08:30 Updated: nss_ldap.i386 226-13
Oct 14 20:08:30 Updated: autofs.i386 1:4.1.3-187
Oct 14 20:08:32 Updated: nfs-utils.i386 1.0.6-70.EL4
Oct 14 20:08:33 Updated: diskdumputils.i386 1.3.15-1
Oct 14 20:08:35 Updated: python-devel.i386 2.3.4-14.3
Oct 14 20:08:36 Updated: authconfig.i386 4.6.10-rhel4.3
Oct 14 20:08:36 Updated: at.i386 3.1.8-80_EL4
Oct 14 20:08:36 Updated: openssh-server.i386 3.9p1-8.RHEL4.17
Oct 14 20:08:38 Updated: xorg-x11-libs.i386 6.8.2-1.EL.13.37.2
Oct 14 20:08:41 Updated: gtk2.i386 2.4.13-19
Oct 14 20:08:43 Updated: libgcj.i386 3.4.6-3
Oct 14 20:08:43 Updated: xorg-x11-font-utils.i386 6.8.2-1.EL.13.37.2
Oct 14 20:08:44 Updated: hotplug.i386 3:2004_04_01-7.7
Oct 14 20:08:45 Updated: udev.i386 039-10.15.EL4
Oct 14 20:08:46 Updated: mkinitrd.i386 4.2.1.8-1
Oct 14 20:08:47 Updated: initscripts.i386 7.93.25.EL-1.centos4
Oct 14 20:08:48 Updated: openssh.i386 3.9p1-8.RHEL4.17
Oct 14 20:08:48 Updated: xorg-x11-Mesa-libGL.i386 6.8.2-1.EL.13.37.2
Oct 14 20:08:49 Updated: hal.i386 0.4.2-4.EL4
Oct 14 20:08:51 Updated: cups.i386 1:1.1.22-0.rc1.9.11
Oct 14 20:08:51 Updated: netdump.i386 0.7.16-2
Oct 14 20:08:53 Updated: emacs.i386 21.3-19.EL.4
Oct 14 20:08:53 Updated: dhclient.i386 7:3.0.1-58.EL4
Oct 14 20:08:54 Updated: oprofile.i386 0.8.1-23
Oct 14 20:08:55 Updated: xorg-x11-xfs.i386 6.8.2-1.EL.13.37.2
Oct 14 20:08:56 Updated: up2date.i386 4.4.69-25.centos4.7
Oct 14 20:08:58 Updated: gcc-java.i386 3.4.6-3
Oct 14 20:08:59 Updated: vsftpd.i386 2.0.1-5.EL4.5
Oct 14 20:08:59 Updated: yum.noarch 2.4.3-1.c4
Oct 14 20:09:56 Erased: centos-yumconf
Oct 23 18:20:44 Updated: tzdata.noarch 2006m-2.el4
i'll try to trace the prob

Cyberdusk 11-17-2006 07:52 AM
Today I faced the same problem on my config. The specs are very similar: CentOS 4.4, recent Apache and PHP 4.4.4 + eAccelerator.

It can be fixed by adding:
export MALLOC_CHECK_=1

in the beginning of /etc/init.d/httpd . After the change restart the server.


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