Hi, I have jsut moved a production site from Zope2 to Zope3. I used zopeproject to download the necessary eggs and started my site using paste serve deploy.ini.
Under moderate traffic however, the site stops responding soon. I have to regularily restart the server. When the site stops responding, 'ps -Af | grep python2.5' shows hundreds of process of paster running. And the process number increases with time rapidly, like: root 20230 18557 0 11:16 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20231 18557 0 11:16 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20237 18557 0 11:17 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20248 18557 0 11:17 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20249 18557 0 11:17 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20250 18557 0 11:17 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20251 18557 0 11:17 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20252 18557 0 11:17 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini root 20284 18557 0 11:18 ? 00:00:00 /usr/bin/python2.5 bin/paster serve deploy.ini Looking into z3.log, I found lots of alarming error messages like: 2008-03-03T11:01:57 INFO paste.httpserver.ThreadPool No idle tasks, and only 0 busy tasks; adding 5 more workers ------ 2008-03-03T11:01:58 CRITICAL ZODB.DB DB.open() has 253 open connections with a pool_size of 7 ------ 2008-03-03T11:01:58 CRITICAL ZODB.DB DB.open() has 254 open connections with a pool_size of 7 ------ 2008-03-03T11:01:59 CRITICAL ZODB.DB DB.open() has 255 open connections with a pool_size of 7 ------ 2008-03-03T11:01:59 CRITICAL ZODB.DB DB.open() has 256 open connections with a pool_size of 7 ------ 2008-03-03T11:01:59 CRITICAL ZODB.DB DB.open() has 257 open connections with a pool_size of 7 ------ 2008-03-03T11:02:35 INFO paste.httpserver.ThreadPool No idle tasks, and only 0 busy tasks; adding 5 more workers ------ 2008-03-03T11:02:36 CRITICAL ZODB.DB DB.open() has 258 open connections with a pool_size of 7 ------ What's wrong with my installation? For your information, the following related components are installed: PasteDeploy-1.3.1 Paste-1.6 ZODB3-3.9.0_dev I am running these with Python2.5. The site uses ZAlchemy to connect to PostgreSQL database and uses ZODB for session variables. -- Hong Yuan 大管家网上建材超市 装修装潢建材一站式购物 http://www.homemaster.cn
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