[Resolved] LiteSpeed + Cloudlinux : DNS resolution failed
- Thread starter benoit.georgelin
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It's not easy to trace exactly the full process as the first lsphp fork another one directly.
Here is something that can help maybe ?
Here is something that can help maybe ?
Code:
open("/lib64/libnss_dns.so.2", O_RDONLY) = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\20\0\0\0\0\0\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0755, st_size=27424, ...}) = 0
mmap(NULL, 2117880, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = -1 ENOMEM (Cannot allocate memory)
close(4) = 0
munmap(0x7f0f5f00b000, 42509) = 0
Not the CGI memory limit, the memory limit for the PHP external app.
http://www.litespeedtech.com/docs/webserver/config/extapps#memSoftLimit
Also take opcode cache memory into consideration against the memory limit.
You can let PHP execute "ulimit -a" to find out the current limit applied to PHP processes.
http://www.litespeedtech.com/docs/webserver/config/extapps#memSoftLimit
Also take opcode cache memory into consideration against the memory limit.
You can let PHP execute "ulimit -a" to find out the current limit applied to PHP processes.
It looks that it's working 
What do you recommend for the memory Soft value ? In a general usage.
Is there a specific way to have a global value or should I set it for each external application ?
Here are default values (unlimit -a)
Thanks !
What do you recommend for the memory Soft value ? In a general usage.
Is there a specific way to have a global value or should I set it for each external application ?
Here are default values (unlimit -a)
Code:
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 94922
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 6000
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 400
virtual memory (kbytes, -v) 460800
file locks (-x) unlimited
http://piwik.domain.net/resolv.php
of course, we'd like to know the reason, to help you, other customers and us
the question is to how we can diagnose it. it'll be ideal if we can reproduce the issue in our lab. can you give us some hints most likely we can reproduce it by mimic your environment ?
are these domains fixed number or too many or just random ?
if only a few fixed number of these domains need to be resolved, can put domain-name IP
in /etc/hosts (not /etc/resolv.conf)
as a simple workaround until root cause discovered.
when it always working under apache, it's also under cloudlinux ?
Code:
Resolution pour www.google.com: 173.194.40.148
Resolution pour mysql1.web4all.fr: 10.101.100.241the question is to how we can diagnose it. it'll be ideal if we can reproduce the issue in our lab. can you give us some hints most likely we can reproduce it by mimic your environment ?
are these domains fixed number or too many or just random ?
if only a few fixed number of these domains need to be resolved, can put domain-name IP
in /etc/hosts (not /etc/resolv.conf)
as a simple workaround until root cause discovered.
when it always working under apache, it's also under cloudlinux ?
Just ovoid domain reference about some domain that was not for proposal testing.
Thanks you
Last edited by a moderator:
change to "domain" per your example.
the default value is set in configuration file. i.e., lsws/conf/httpd_config.xml, when install new lsws.
in the past, memory soft/hard limit os 250M/300M
recently I noticed being 2047M/2047M for a new lsws installation.
this setting is lsws specific, apache don't have it.
it's used to prevent a lsphp process consume too many memory unexpectedly.
the default value is set in configuration file. i.e., lsws/conf/httpd_config.xml, when install new lsws.
in the past, memory soft/hard limit os 250M/300M
recently I noticed being 2047M/2047M for a new lsws installation.
this setting is lsws specific, apache don't have it.
it's used to prevent a lsphp process consume too many memory unexpectedly.
Thanks for changing the domain name
I don't use Apache2 configuration files.
Only LiteSpeed.
The default configuration in Litespeed in Server => Security is about CGI-Script
The help bubble say :
So I'm surprised to have to set MemoryLimit on the Vhost Configuration in the external app
Calling piwk index file is not consuming 500M of memory for sure
I don't use Apache2 configuration files.
Only LiteSpeed.
The default configuration in Litespeed in Server => Security is about CGI-Script
Code:
<memSoftLimit>450M</memSoftLimit>
<memHardLimit>500M</memHardLimit>
<procSoftLimit>400</procSoftLimit>
<procHardLimit>450</procHardLimit>
Code:
Specifies the memory consumption limit in bytes for an external application process or an external application started by the server.Calling piwk index file is not consuming 500M of memory for sure
yes, maybe the document can be further improved ... may confuse people like your case.
to my understanding, those settings is for CGI, but not include fast-cgi, while lsphp belong to fast-cgi. but for people who is new to lsws, very likely not aware of the difference -- isn't fast-cgi a sort of cgi ?
it may waste a lot of time if there is a misunderstanding from the beginning
the setting(server wide) for lsphp is at
Server -> External App -> lsphp5 ->
Memory Soft Limit (bytes)
Memory Hard Limit (bytes)
to my understanding, those settings is for CGI, but not include fast-cgi, while lsphp belong to fast-cgi. but for people who is new to lsws, very likely not aware of the difference -- isn't fast-cgi a sort of cgi ?
it may waste a lot of time if there is a misunderstanding from the beginning
the setting(server wide) for lsphp is at
Server -> External App -> lsphp5 ->
Memory Soft Limit (bytes)
Memory Hard Limit (bytes)
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