[Zope-dev] WebDAV File Descriptor Leak

[Brian Brinegar]

Hello,

We've run into a problem where we get messages like this in our Zope logs:

2003-05-23T18:56:08 PROBLEM(100) ZServer Server accept() threw an exception

we occasionally get a lot of these and then restart Zope on the ZEO 
Client and everything is okay. After a little more investigation we 
found that these occur when we run out of File Descriptors. So, why are 
we running out of file descriptors???

Tracked it down to this: each time a WebDAV client connects to zope 
cluster a temporary file is created. lsof shows the following:

python    19005 httpd 1016u   REG        0,9       227   15857725 
/var/tmp/@19004.1930 (deleted)
python    19005 httpd 1017u   REG        0,9       227   15857727 
/var/tmp/@19004.1931 (deleted)
python    19005 httpd 1018u   REG        0,9       227   15857732 
/var/tmp/@19003.1933 (deleted)
python    19005 httpd 1019u   REG        0,9       227   15857738 
/var/tmp/@19003.1934 (deleted)
python    19005 httpd 1020u   REG        0,9       227   15857740 
/var/tmp/@19003.1935 (deleted)
python    19005 httpd 1021u   REG        0,9       227   15857743 
/var/tmp/@19003.1936 (deleted)
python    19005 httpd 1022u   REG        0,9       227   15857745 
/var/tmp/@19003.1937 (deleted)
python    19005 httpd 1023u   REG        0,9       227   15857886 
/var/tmp/@19003.1956 (deleted)

they are all roughly the same size. There seems to be a file descriptor 
leak. Is this a known problem? We are running Zope 2.5.1 right now.

Any ideas?

Thanks,
-Brian