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Posted to bugs@httpd.apache.org by bu...@apache.org on 2011/06/16 06:48:48 UTC
DO NOT REPLY [Bug 51383] New: cgi hung by ErrorLog syslog
https://issues.apache.org/bugzilla/show_bug.cgi?id=51383
Bug #: 51383
Summary: cgi hung by ErrorLog syslog
Product: Apache httpd-2
Version: 2.0-HEAD
Platform: Other
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: All
AssignedTo: bugs@httpd.apache.org
ReportedBy: chenwsh@ffcs.cn
Classification: Unclassified
Server version: Apache/1.3.41 (Unix) (Red-Hat/Linux)
the cgi has following source
#!/bin/sh
tar xzf /save/etc.tgz
/bin/rm -f etc/device
.......
the tar command may create following message(stderr)
tar: etc/version: time stamp 2009-05-28 14:39:00 is 252030566 s in the future
tar: etc/aaa: time stamp 2009-05-28 14:39:00 is 252030566 s in the future
........
in the apache configure file,when setting
ErrorLog syslog
In this state,when tar command generates a large number of messages,
the cgi will be hung in the command "tar xzf /save/etc.tgz".
In Linux versions before 2.6.11, the capacity of a pipe was 4096 bytes.
so in linux 2.4.20 when the tar messages total length over 4096bytes,hanging
the script's execution(tar command).
Since Linux 2.6.11, the pipe capacity is 65536 bytes.
so in linux 2.6.18 when the messages total length over 65536bytes,hanging the
script's execution(tar command).
But if the apache configure file is modified as follows,
Errorlog /dev/null
the cgi will not be hung.
why the cgi is hung when apache setting "ErrorLog syslog"?
Is apache's bug ?
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DO NOT REPLY [Bug 51383] cgi hung by ErrorLog syslog
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51383
--- Comment #1 from chenwsh <ch...@ffcs.cn> 2011-06-16 04:59:40 UTC ---
when setting ErrorLog /dev/null,it will not be hung,why?
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[Bug 51383] cgi hung by ErrorLog syslog
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51383
Takashi Sato <ta...@tks.st> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |INVALID
--- Comment #3 from Takashi Sato <ta...@tks.st> ---
no response from the reporter
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DO NOT REPLY [Bug 51383] cgi hung by ErrorLog syslog
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=51383
Stefan Fritsch <sf...@sfritsch.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
--- Comment #2 from Stefan Fritsch <sf...@sfritsch.de> 2011-06-29 17:32:58 UTC ---
(In reply to comment #0)
> Server version: Apache/1.3.41 (Unix) (Red-Hat/Linux)
Does this happen also with 2.2.x? 1.3 has reached end of life (that's why it's
not possible to open new PRs for it).
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