Apache2 läuft nur 1 Minute

[toki78]

Hallo,
unser wenn ich den apache daemon neu starte, funktioniert
alles ca. 1 Minute lang, dann kann der Browser erst die Bilder
nicht mehr laden, und dann hängt der daemon komplett.
Ein "top" in der Shell ergibt, daß der apache2 Prozess
keine CPU-Zeit verbraucht.
Woran kann das liegen ?

Grüße
Thorsten

[toki78]

OK, ich habe herausgefunden, daß der Server es nicht verträgt, wenn man 10-20 Tabs im Browser aufmacht
und dann auf "alle Tabs neu laden" klickt.
Die Apache Version ist 2.0.53. Ist das ein Bug in dieser Version ?

Gruß
Thorsten

[Joe User]

Ohne nähere Angaben zur Apache-Config und der gegebenenfalls beteiligten Module lässt sich kaum eine potentielle Fehlerquelle ausmachen.

[toki78]

Welche Dateien brach Ihr genau ?
Es ist ein Suse 9.3 mit Plesk 9.2.1.
Die folgenden Module werden geladen :

s15213780:/etc/apache2/conf.d # ls
. apache2-manual.conf mod_perl.conf php_cgi.conf zz011_sitebuilder.conf
.. fcgid.conf php4.conf zz010_psa_httpd.conf zzz_horde_vhost.conf

s15213780:/etc/apache2 # ls
. httpd.conf mod_autoindex-defaults.conf mod_status.conf ssl.crt sysconfig.d
.. httpd.pem mod_info.conf mod_userdir.conf ssl.csr uid.conf
conf.d listen.conf mod_log_config.conf mod_usertrack.conf ssl-global.conf vhosts.d
default-server.conf magic mod_mime-defaults.conf server-tuning.conf ssl.key workers.properties
errors.conf mime.types mod_perl-startup.pl ssl.crl ssl.prm
s15213780:/etc/apache2 #


Gruß
Thorsten

[toki78]

Code: Select all

##
## Server-Pool Size Regulation (MPM specific)
## 

# the MPM (multiprocessing module) is not a dynamically loadable module in the
# sense of other modules. It is a compile time decision which one is used. We
# provide different apache2 MPM packages, containing different httpd2 binaries
# compiled with the available MPMs. See APACHE_MPM in /etc/sysconfig/apache2.

# prefork MPM
<IfModule prefork.c>
	# number of server processes to start
	StartServers         2
	# minimum number of server processes which are kept spare
	MinSpareServers      1
	# maximum number of server processes which are kept spare
	MaxSpareServers      5
	# highest possible MaxClients setting for the lifetime of the Apache process.
	ServerLimit        150
	# maximum number of server processes allowed to start
	MaxClients          10
	# maximum number of requests a server process serves
	MaxRequestsPerChild  0
</IfModule>

# worker MPM
<IfModule worker.c>
	# initial number of server processes to start
	StartServers         2
	# minimum number of worker threads which are kept spare
	MinSpareThreads     25
	# maximum number of worker threads which are kept spare
	MaxSpareThreads     75 
	# maximum number of simultaneous client connections
	MaxClients         150
	# constant number of worker threads in each server process
	ThreadsPerChild     25
	# maximum number of requests a server process serves
	MaxRequestsPerChild  0
</IfModule>

# leader MPM
<IfModule leader.c>
	# initial number of server processes to start
	StartServers         2
	# minimum number of worker threads which are kept spare
	MinSpareThreads     25
	# maximum number of worker threads which are kept spare
	MaxSpareThreads     75 
	# maximum number of simultaneous client connections
	MaxClients         150
	# constant number of worker threads in each server process
	ThreadsPerChild     25
	# maximum number of requests a server process serves
	MaxRequestsPerChild  0
</IfModule>

# perchild MPM
<IfModule perchild.c>
	# constant number of server processes
	NumServers           5
	# initial number of worker threads in each server process
	StartThreads         5
	# minimum number of worker threads which are kept spare
	MinSpareThreads      5
	# maximum number of worker threads which are kept spare
	MaxSpareThreads     10
	# maximum number of worker threads in each server process
	MaxThreadsPerChild  20
	# maximum number of connections per server process
	MaxRequestsPerChild  0

	AcceptMutex fcntl
</IfModule>

# metux MPM
<IfModule metuxmpm.c>
	# initial number of worker threads in each server process
	StartThreads          5
	# minimum number of worker threads which are kept spare
	MinSpareThreads       5
	# maximum number of worker threads which are kept spare
	MaxSpareThreads      10
	# maximum number of connections per server process
	MaxRequestsPerChild   0

	Multiplexer	"wwwrun"	"www"

</IfModule>


#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive On

#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100

#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 15

#
# EnableMMAP: Control whether memory-mapping is used to deliver
# files (assuming that the underlying OS supports it).
# The default is on; turn this off if you serve from NFS-mounted
# filesystems.  On some systems, turning it off (regardless of
# filesystem) can improve performance; for details, please see
# http://httpd.apache.org/docs-2.0/mod/core.html#enablemmap
#
#EnableMMAP off

#
# EnableSendfile: Control whether the sendfile kernel support is
# used  to deliver files (assuming that the OS supports it).
# The default is on; turn this off if you serve from NFS-mounted
# filesystems.  Please see
# http://httpd.apache.org/docs-2.0/mod/core.html#enablesendfile
#
#EnableSendfile off


#
# The following directives modify normal HTTP response behavior to
# handle known problems with browser implementations.
#
BrowserMatch "Mozilla/2" nokeepalive
BrowserMatch "MSIE 4.0b2;" nokeepalive downgrade-1.0 force-response-1.0
BrowserMatch "RealPlayer 4.0" force-response-1.0
BrowserMatch "Java/1.0" force-response-1.0
BrowserMatch "JDK/1.0" force-response-1.0

#
# The following directive disables redirects on non-GET requests for
# a directory that does not include the trailing slash.  This fixes a 
# problem with Microsoft WebFolders which does not appropriately handle 
# redirects for folders with DAV methods.
# Same deal with Apple's DAV filesystem and Gnome VFS support for DAV.
#
BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully
BrowserMatch "^WebDrive" redirect-carefully
BrowserMatch "^WebDAVFS/1.[012]" redirect-carefully
BrowserMatch "^gnome-vfs" redirect-carefully

[jfreund] edit: Konfiguration wegen akuter Augenkrebsgefahr in Code-Tags gepackt - das nächste Mal bitte selbst dran denken!

[daemotron]

Es ist ein Suse 9.3 mit Plesk 9.2.1.

Wie wäre es mit einem Upgrade auf eine noch unterstützte Version von OpenSUSE?

[toki78]

Hallo,
eine Neuinstallation ist mir zu riskant, weil vielleicht Daten verloren gehen könnten.
Kann man vielleicht am Servertuning was machen ?

[Joe User]

eine Neuinstallation ist mir zu riskant, weil vielleicht Daten verloren gehen könnten.

Und das erheblich höhere Risiko, dass in das System eingebrochen wird, blendest Du völlig aus?
Schonmal den Begriff "Backup" gehört?

Kann man vielleicht am Servertuning was machen ?

Ja, aber nicht bei dieser Urzeit-Installation, da hier niemand mehr vergleichbar alte Testsysteme hat...

[dotme]

Welches MPM setzt Du den ein? Bei prefork wird Deiner Konfiguration nach die Anzahl gleichzeitiger Anfragen auf 10 beschränkt. Das sollte Du ggfs. nach Neuinstallation berücksichtigen. :twisted: