503 error and zend_mm_heap corrupted

Hedloff

Well-Known Member
#1
Hello,

We have some hosting servers running latest cPanel (11.48.3) and Litespeed (4.2.3) with Cloudlinux/CageFS enabled.
On one server some customers get 503 occasionally on their sites.

When I check logs I get these:

Code:
2015-04-29 03:33:34.674 [INFO] [ip:56972-0#APVH_domain.tld]
connection to [/tmp/lshttpd/APVH_username_Suphp.sock.995] on request #0,
confirmed, 1, associated process: 848643, running: 0, error: Connection reset by
peer!
2015-04-29 03:33:34.674 [NOTICE] [ip:56972-0#APVH_domain.tld]
POST request in process stage, fail with 503
2015-04-29 03:33:34.674 [NOTICE] [ip:56972-0#APVH_domain.tld]
oops! 503 Service Unavailable
2015-04-29 03:33:34.674 [NOTICE] [ip:56972-0#APVH_domain.tld]
Content len: 111, Request line: 'POST /wp-admin/admin-ajax.php HTTP/1.1'
2015-04-29 03:33:34.674 [INFO] [ip:56972-0#APVH_domain.tld]
Cookie len: 851,
wordpress_8214c677efde693332260277d8848d48=username%7C1430863436%7CoVt5cVpH9SvKtxqBR4GNvvMCwNbE1ZJuMNGlsAgrE8A%7Ce3f4553b2e9409eb8bbe46a781d67baf6251127903dc22be5218c712dd31ca98;
wp-settings-1=libraryContent%3Dbrowse%26editor%3Dhtml%26urlbutton%3Dnone%26ed_size%3D404%26hidetb%3D1%26post_dfw%3Don%26posts_list_mode%3Dlist;
wp-settings-time-1=1425397747;
wp-settings-2=editor%3Dtinymce%26hidetb%3D1%26imgsize%3Dfull%26urlbutton%3Dfile%26wooframeworkhidebannerwoodojo%3D1%26wooframeworkhidebannerpresstrends%3D1%26libraryContent%3Dbrowse%26align%3Dnone%26wplink%3D1%26ed_size%3D229%26dfw_width%3D722;
wp-settings-time-2=1400595985;
wordpress_logged_in_8214c677efde693332260277d8848d48=knutsp%7C1430863436%7CoVt5cVpH9SvKtxqBR4GNvvMCwNbE1ZJuMNGlsAgrE8A%7Cc854b183fb955723aae5e07bfcca1dc659902e2dd6c3a8a62dc81734ec7267b8;
PHPSESSID=rf4k6uq3b0v2acj1adqb0e8on6
2015-04-29 03:33:34.674 [INFO] [ip:56972-0#APVH_domain.tld]
abort request..., code: 4
2015-04-29 03:33:34.674 [INFO] [ip:56972-0#APVH_domain.tld] File
not found [/home/username/public_html/503.shtml]
When checking stderr.log I see these:

Code:
2015-04-29 02:56:52.434 [STDERR] [2015-04-29 02:56:52 +0200] warn [autoconfig] Could not create dir "//.cpanel" at /usr/local/cpanel/Cpanel/Config/LoadConfig.pm line 260
        Cpanel::Config::LoadConfig::loadConfig('/etc/remotedomains', HASH(0x45d56b8), '') called at /usr/local/cpanel/Cpanel/Email/AutoConfig.pm line 37
        Cpanel::Email::AutoConfig::outlook() called at cgi-sys/autoconfig.cgi.pl line 37
        eval {...} called at cgi-sys/autoconfig.cgi.pl line 36
2015-04-29 02:56:52.434 [STDERR] [2015-04-29 02:56:52 +0200] warn [autoconfig] Could not create dir "//.cpanel/caches" at /usr/local/cpanel/Cpanel/Config/LoadConfig.pm line 260
        Cpanel::Config::LoadConfig::loadConfig('/etc/remotedomains', HASH(0x45d56b8), '') called at /usr/local/cpanel/Cpanel/Email/AutoConfig.pm line 37
        Cpanel::Email::AutoConfig::outlook() called at cgi-sys/autoconfig.cgi.pl line 37
        eval {...} called at cgi-sys/autoconfig.cgi.pl line 36
2015-04-29 02:56:52.434 [STDERR] [2015-04-29 02:56:52 +0200] warn [autoconfig] Could not create dir "//.cpanel/caches/config" at /usr/local/cpanel/Cpanel/Config/LoadConfig.pm line 260
        Cpanel::Config::LoadConfig::loadConfig('/etc/remotedomains', HASH(0x45d56b8), '') called at /usr/local/cpanel/Cpanel/Email/AutoConfig.pm line 37
        Cpanel::Email::AutoConfig::outlook() called at cgi-sys/autoconfig.cgi.pl line 37
        eval {...} called at cgi-sys/autoconfig.cgi.pl line 36
2015-04-29 02:56:52.660 [STDERR] [2015-04-29 02:56:52 +0200] warn [autoconfig] Could not create dir "//.cpanel" at /usr/local/cpanel/Cpanel/Config/LoadConfig.pm line 260
        Cpanel::Config::LoadConfig::loadConfig('/etc/remotedomains', HASH(0x4b826b8), '') called at /usr/local/cpanel/Cpanel/Email/AutoConfig.pm line 37
        Cpanel::Email::AutoConfig::outlook() called at cgi-sys/autoconfig.cgi.pl line 37
        eval {...} called at cgi-sys/autoconfig.cgi.pl line 36
2015-04-29 02:56:52.660 [STDERR] [2015-04-29 02:56:52 +0200] warn [autoconfig] Could not create dir "//.cpanel/caches" at /usr/local/cpanel/Cpanel/Config/LoadConfig.pm line 260
        Cpanel::Config::LoadConfig::loadConfig('/etc/remotedomains', HASH(0x4b826b8), '') called at /usr/local/cpanel/Cpanel/Email/AutoConfig.pm line 37
        Cpanel::Email::AutoConfig::outlook() called at cgi-sys/autoconfig.cgi.pl line 37
        eval {...} called at cgi-sys/autoconfig.cgi.pl line 36
2015-04-29 02:56:52.660 [STDERR] [2015-04-29 02:56:52 +0200] warn [autoconfig] Could not create dir "//.cpanel/caches/config" at /usr/local/cpanel/Cpanel/Config/LoadConfig.pm line 260
        Cpanel::Config::LoadConfig::loadConfig('/etc/remotedomains', HASH(0x4b826b8), '') called at /usr/local/cpanel/Cpanel/Email/AutoConfig.pm line 37
        Cpanel::Email::AutoConfig::outlook() called at cgi-sys/autoconfig.cgi.pl line 37
        eval {...} called at cgi-sys/autoconfig.cgi.pl line 36
2015-04-29 02:59:58.927 [STDERR] sh: host: command not found
2015-04-29 03:34:01.223 [STDERR] zend_mm_heap corrupted
Any idea what is causing these?
I may think the errors in stderr may be related to 503 errors somehow?
 
#2
Are you using PHP Selector as well? We've had these issues too. Sometimes disabling some modules in PHP selector like zend guard loader helps.
 

Hedloff

Well-Known Member
#3
Ok. Yes, we use PHP Selector.
Do you mean disable them on whole server or just the one account that has problems?

We cannot disable those modules for the whole server.....
 
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