Adi Pircalabu writes:

For us it is, we're periodically getting hammered by iOS devices that try to open 300+ simultaneous IMAP connections for a single user from the same IP, while the average hovers usually below 50 for the busier mailboxes with many folders.

Oh yeah, I've seen this. I think this happens when someone does a global pattern search, which causes the client to launch IMAP SEARCH commands on each and every mailbox.

I've wondered whether installing Solr would alleviate this: it wouldn't directly address the connection limit problem, but perhaps it can return results fast enough to keep the concurrent connections count down.

Can anyone with Solr installed confirm/refute this: does installing Solr keep iOS clients from roofing the connection count?

Joseph Tam jtam.home@gmail.com