Hi Bron!
Bron Gondwana wrote:
Our monitoring script that runs every 2 minutes does a "du -s" on the
{configdirectory}/sync directory and notifies us if it gets "big" (where
big is obviously a per-instance variable)
A less frequently run script searches the ps output for copies of
sync_client. It then looks in they sync directory, and for any
file called log-{N} it checks if there is a sync_client with PID
{N}. If not, it tries to run it with -r -f. Finally, if there
was no sync_client at all, it launches a new one with -r.
Interesting. So running the syn_client with -r -f file let it catch up?
Thirdly we have a tool which makes an imap connection to each of
the master and replica (we run an imapd on a different port on the
replica purely for this purpose) and does a bunch of checks
on each mailbox. It has to run as each user to get SEEN state.
This script has multiple levels of test, right up to one that
actually randomly picks a few messages and fetches their bodies
for comparison. It always checks at least flags and everything
you can STATUS for. This tool also has an optional flag which
can ssh to the apropriate servers and run reconstruct on the
mailboxes as well as sync_client -u on the offending user if it
finds inconsistencies. Obviously, there's a possibility that
it catches changes where sync_client just hasn't caught up yet,
but it retries multiple times with a tunable delay, so generally
it will get the same value on one of the retries unless the
folder is seeing a lot of traffic.
Also very interesting!
Thanks in advance!
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Rudy Gevaert Rudy.Gevaert@xxxxxxxx tel:+32 9 264 4734
Directie ICT, afd. Infrastructuur Direction ICT, Infrastructure dept.
Groep Systemen Systems group
Universiteit Gent Ghent University
Krijgslaan 281, gebouw S9, 9000 Gent, Belgie www.UGent.be
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