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I have just located a large source of problems with our installation.
We average about 500 POP3 logins per minute and we had roaming users
enabled. It seems that writing to the /usr/local/vpopmail/etc/open-smtp
file was a large bottleneck since so many logins were attempting to
write to the same file. Users would get "file busy" errors while
successful logins, when they happened, would take upwards of a minute.
Failures would happen instantly, since the file was not written to.
Has anyone found an alternate solution to this? I now use authenticated
SMTP only for this installation. Perhaps a directory of entries instead
of a file, or some kind of file-based DB? Any ideas? We'd like to keep
this feature, but with so many users, this seems to be the only system
bottleneck on this system (about 13,000 domains).
- --
[!] Justin R. Miller <[EMAIL PROTECTED]>
Encrypted email preferred (key 0xC9C40C31)
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