Hi list
Please, what is the recommened (or minimum recommened) number of running
postgresql instances (max_connections parameter in postgresql.conf) for
spacewalk?
I am using postgresql db only for spacewalk and I have registered
approx. 20 clients. For now, I am using only packages distribution to
clients from repozitories, without errata nor audit or monitoring. And
have received sometimes (mainly after spacewalk machine restart) RHN
Traceback messages complains about DB (re-)connection.
Default value of max_connections was 100 and I've increased it to 500,
but I guess it isnt enough because I have also received same connection
problems messages from spacewalk in time (tventy-threety mails in row).
And when I have logged into spacewalk server there was all 500 instances
of postgresql running. With oracle DB that I've using it before potrges
I never have same problems (with default oracle configuration).
thanks
michal
------------------------------------------------------------------------
Exception reported from spacewalk.example.com
Time: Thu Dec 2 10:12:29 2010
Exception type<class 'spacewalk.server.rhnSQL.sql_base.SQLConnectError'>
Request object information:
URI: /XMLRPC
Remote Host: log.example.com
Server Name: spacewalk.example.com:80
Headers passed in:
Accept-Encoding: identity
CONTENT_LENGTH: 122
CONTENT_TYPE: text/xml
DOCUMENT_ROOT: /var/www/html
GATEWAY_INTERFACE: CGI/1.1
HTTP_ACCEPT_ENCODING: identity
HTTP_HOST: spacewalk.example.com
HTTP_USER_AGENT: rhn.rpclib.py/$Revision$
HTTP_X_CLIENT_VERSION: 1
HTTP_X_INFO: RPC Processor (C) Red Hat, Inc (version $Revision$)
HTTP_X_RHN_TRANSPORT_CAPABILITY: follow-redirects=3
HTTP_X_TRANSPORT_INFO: Extended Capabilities Transport (C) Red Hat, Inc
(version $Revision$)
Host: spacewalk.example.com
NLS_LANG: english.AL32UTF8
ORACLE_HOME: /opt/oracle
PATH_INFO:
QUERY_STRING:
REMOTE_ADDR: 172.30.0.35
REMOTE_PORT: 44790
REQUEST_METHOD: POST
REQUEST_URI: /XMLRPC
SCRIPT_FILENAME: /usr/share/rhn/wsgi/xmlrpc.py
SCRIPT_NAME: /XMLRPC
SCRIPT_URI:http://spacewalk.example.com/XMLRPC
SCRIPT_URL: /XMLRPC
SERVER_ADDR: 172.30.0.55
SERVER_ADMIN: r...@localhost
SERVER_NAME: spacewalk.example.com
SERVER_PORT: 80
SERVER_PROTOCOL: HTTP/1.1
SERVER_SIGNATURE:<address>Apache Server at spacewalk.example.com Port
80</address>
SERVER_SOFTWARE: Apache
User-Agent: rhn.rpclib.py/$Revision$
X-Client-Version: 1
X-Info: RPC Processor (C) Red Hat, Inc (version $Revision$)
X-RHN-Transport-Capability: follow-redirects=3
X-Transport-Info: Extended Capabilities Transport (C) Red Hat, Inc
(version $Revision$)
mod_wsgi.application_group: aphrodite.example.com|/xmlrpc
mod_wsgi.callable_object: application
mod_wsgi.handler_script:
mod_wsgi.input_chunked: 0
mod_wsgi.listener_host:
mod_wsgi.listener_port: 80
mod_wsgi.process_group:
mod_wsgi.request_handler: wsgi-script
mod_wsgi.script_reloading: 1
mod_wsgi.version: (3, 1)
wsgi.errors:<mod_wsgi.Log object at 0x7f5ae7c84bf0>
wsgi.file_wrapper:<built-in method file_wrapper of mod_wsgi.Adapter object
at 0x7f5ae84b4468>
wsgi.input:<mod_wsgi.Input object at 0x7f5ae83cb9f0>
wsgi.multiprocess: True
wsgi.multithread: False
wsgi.run_once: False
wsgi.url_scheme: http
wsgi.version: (1, 1)
Exception Handler Information
Traceback (most recent call last):
File "/usr/lib/python2.6/site-packages/spacewalk/server/apacheHandler.py",
line 77, in headerParserHandler
rhnSQL.initDB()
File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/__init__.py",
line 118, in initDB
__init__DB(backend, host, port, username, password, database)
File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/__init__.py",
line 59, in __init__DB
__DB.check_connection()
File
"/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_postgresql.py",
line 178, in check_connection
self.connect() # only allow one try
File
"/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_postgresql.py",
line 156, in connect
return self.connect(reconnect=0)
File
"/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_postgresql.py",
line 160, in connect
[self.database, e.pgcode, e.pgerror, "Attempting Re-Connect to the database
failed",])
SQLConnectError: (None, None, 'spaceschema', 'Attempting Re-Connect to the
database failed')
Local variables by frame
Frame connect in
/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_postgresql.py
at line 160
self =<type 'instance'>
<spacewalk.server.rhnSQL.driver_postgresql.Database instance at 0x7f5ae83d76c8>
e =<class 'psycopg2.OperationalError'> FATAL: sorry, too many clients
already
reconnect =<type 'int'> 0
Frame connect in
/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_postgresql.py
at line 156
self =<type 'instance'>
<spacewalk.server.rhnSQL.driver_postgresql.Database instance at 0x7f5ae83d76c8>
e =<class 'psycopg2.OperationalError'> FATAL: sorry, too many clients
already
reconnect =<type 'int'> 1
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