Hi, Thanks for the various advises previously. I have experimented with different wsgi servers:
zope.server#main Paste#http PasteScript#cherrypy PasteScript#twisted and put them under some load: ab -c 20 The zope.server seems to give the best result. It causes the least failed requests due to the Competing writes/reads conflict, like: 2008-03-11T22:56:16 WARNING ZopePublication Competing writes/reads at /prod/++vh++http:rhodium.homemaster.cn:80/++/products/bWc9MTAxJmI9NA==: database conflict error (oid 0x36, class BTrees.OOBTree.OOBTree, serial this txn started with 0x03745ce92aee00aa 2008-03-11 08:09:10.061648, serial currently committed 0x03745e800ade9cdd 2008-03-11 14:56:02.547558) With PasteScript#cherrypy my application fails when using JSON requests with the header Content-Type: application/json. It causes zope.publisher to throw a socket time out error and doesn't send back any results. I guess it can not handle my request header properly. The other servers are OK with the JSON request header. 2008-03-11T22:49:50 ERROR root /root/workspace/eggs/tmp_f2rNS/zope.publisher-3.4.2-py2.5.egg/zope/publisher/publish.py line 126 in publish => None ** <class 'socket.timeout'>: timed out /root/workspace/eggs/z3c.jsonrpc-0.5.1-py2.5.egg/z3c/jsonrpc/publisher.py line 114 in processInputs => 'incoming = stream.read(1000)' ** <class 'socket.timeout'>: timed out /root/workspace/eggs/tmp_f2rNS/zope.publisher-3.4.2-py2.5.egg/zope/publisher/http.py line 210 in read => None ** <class 'socket.timeout'>: timed out /usr/lib/python2.5/socket.py line 309 in read => 'data = self._sock.recv(recv_size)' ** <class 'socket.timeout'>: timed out I have one problem with zope.server though. It works fine with paste in the 3.5 version. But following the advise of Christophe, I added the following to my buildout.cfg extends = http://download.zope.org/zope3.4/versions.cfg It turns out however that zope.server-3.4.1 does not define entry_points and therefore can not be loaded by Paste, since Paste doesn't seem to be able to load from modules directly. How can I solve this problem? -- 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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