Go to the directory in question and have it stop inheriting rights from the parent (security tab > advanced), let it remove all the permissions when you apply it, then assign "everyone" full to see if it helps. I have a feeling it's your AV though since it's happening elsewhere. Process Monitor: http://technet.microsoft.com/en-us/sysinternals/bb896645 will help see if your AV is accessing it if you think that's an issue. Would be interesting to see what is going on with that file when those errors start happening. Funky security issues like that aren't normal, especially if you're having that happen elsewhere. I would run postgres as the service account that it creates with the installer and just make sure the root directories have explicit permissions for that service account instead of running as administrator. -----Original Message----- From: pgsql-admin-owner@xxxxxxxxxxxxxx [mailto:pgsql-admin-owner@xxxxxxxxxxxxxx] On Behalf Of Brian Fehrle Sent: Wednesday, May 11, 2011 5:54 PM To: pgsql-admin@xxxxxxxxxxxxxx Subject: Permission Denied for 'pg_stat_tmp/pgstat.tmp' on Windows server 2003 - postgresql 8.4.6 Hi list, I've been doing a ton of searching on this issue, but haven't found any information as to why I'm getting this error, and I'm convinced this is an issue with Windows Server 2003 (or the antivirus), but thought I'd try my luck here to see if anyone has seen this problem and knows a fix. Unfortunately, moving off of windows onto a real OS isn't an option, so I need to make due with what I have. PostgreSQL version: 8.4.6 OS: Windows Server 2003 Web Edition, Service Pack 2 (sorry) Disk File System: NTFS In my PostgreSQL server log, I am receiving tons of the following line: 2011-05-11 18:24:30 EDT LOG: could not open temporary statistics file "pg_stat_tmp/pgstat.tmp": Permission denied And by tons, I mean several hundred per minute. This is odd because the file was created by the administrator account, and the database is running as the administrator account. When I try to look at the pg_stat_tmp/pgstat.tmp file's in the windows properties GUI, the "security" tab that should be there is nonexistent. It's there for any other file, and allows me to set permissions and ownerships of the file, but for this one it's gone. If I reboot the entire machine, this file is no longer locked down like this. I've verified that the file can be accessed, is owned by administrator and allows all privileges to the administrator account before I start the database. When I start the database, everything looks fine, however within about half an hour, the log file prints out more "permission denied" lines and the security tab in the files properties disappears. This behavior has happened to two other files on this server, neither of which had anything to do with the postgres cluster, so I don't think it's bound to just the contents of my postgresql data directory. I have set up the antivirus (immunet 3.0 - clamav, only one i could find that would run on a server version of windows for free) to ignore these directories and files, however I'm unsure how I could verify that it's indeed ignoring these files, or if it is mucking around with them. This is just one issue of many I have been having while running postgresql on Windows Server 2003 (none of them postgres's fault), but it's the main one that I haven't developed a workaround for yet. Any suggestions, or helpful info is greatly appreciated. - Brian F -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin