Well, today, it would appear that
two good things, and potentially a third good thing happened at work
today.
We may have discovered a cause and solution to the IMAP outages we
experienced over the weekend. More on this, but it appears
a vulnerability in another IMAP Mail server may be the culprit.
Another good thing that happened
today is that we may have determined the cause of the high utilization
bottleneck on our backend NetMail servers. In the last six weeks, we
have done a lot of work to "peel back the layers of the onion."
Essentially,
when a ResolveName request comes through, eDirectory will return back
an entry plus referrals for a certain object. To prevent the referrals
from going to the same server, a randomize function is called, but it
is called within NICI. Essentially, what happens is bunches of threads
get stuck behing NICI, as NICI employs a R/W Writer Lock. Apparently,
DS engineering will make a modification, but it may or may not shift
the problem elsewhere down another codepath.
A nice third good thing is the coming end of the NetMail system and
my work on it. The CIO formally announced our move to Mirapoint,
and I welcome it as it will free me to do other things.
Nonetheless, this does not change my perspective in seeking employment
elsewhere.
On other points, I need to get to
bed, as I have beenup way too late doing work. More tomorrow, as I am sure that my commute will be bad since it will be raining.
11:37:46 PM 
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