search for: guid_128_generate

Displaying 2 results from an estimated 2 matches for "guid_128_generate".

2013 Mar 12
1
stats plugins causing dns lookup per connection
I noticed our imap servers were generating a lot of A record lookups for their own IP's the other day and just got around to tracking down the source. Seems like they are all being caused by guid_128_generate() - perhaps the lookup could be cached at start up or it could just use make use of the hostname rather than spending the effort to get the IP via gethostbyname() calls. The function is used in a few other places too, so this might help more than just the stats plugin. nscd and/or host entries mi...
2015 Jan 04
0
mdbox GUID
Hi, The dbox page says: "Each message has a 128 bit globally unique identifier (GUID)" I guess this is what guid_128_generate() generates. Is this believed to be really globally unique? As far as I can tell, in the current architecture they are -given there are enough time precision-, because all dovecot daemons are single threaded, so they have concurrency but doesn't have parallelism (they are not multi threade...