* Ralf Hildebrandt <ralf.hildebra...@charite.de>: > During norml operation this morning we're seeing a significantly > increased load on the IMAP server (factor 5, from 5 to 25). > > Does dovecot need to rebuild index files or perform other IO intensive > operations after the upgrade? > > We're using Maildir > > Our monitoring shows increased "system" time. We're runnign fewer > processes, the IO rate ist identical to yesterday, memory usage is > identical.
I found the reason: My excessive number of ca-certificates! dovecot-lda invoke doveconf, which in turn needs a whooping 1.2s wallclock time to parse the config! I pruned the ca-certificates file and removed ALL ca-certificates but the ones that belong to the certificate chain for postamt.charite.de -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
