Hello! I've started seeing intermittent dsync failures since upgrading Dovecot to 2.3.11.3-3 (CentOS 8 using the official Dovecot repo). Sep 27 17:49:04 host dovecot[130]: dsync-local(user at host)<5GWFD2CmcF+TJwAAsNnMGQ>: Warning: Failed to do incremental sync for mailbox INBOX, retry with a full sync (Modseq 66543 no longer in transaction log (highest=66547, last_common_uid=46346, nextuid=46347)) Sep 27 17:49:04 host dovecot[130]: dsync-local(user at host)<5GWFD2CmcF+TJwAAsNnMGQ>: Error: Remote command returned error 75: ssh <options> doveadm dsync-server -u user at host It seems to happen at random times to random users. My setup has 2 servers - users are connecting to the main server and the secondary server is just for backup - noone is actually connecting to it. Any suggestions? Thanks! Reio
On 28/09/2020 11:00, Reio Remma wrote:> Hello! > > I've started seeing intermittent dsync failures since upgrading > Dovecot to 2.3.11.3-3 (CentOS 8 using the official Dovecot repo). > > Sep 27 17:49:04 host dovecot[130]: > dsync-local(user at host)<5GWFD2CmcF+TJwAAsNnMGQ>: Warning: Failed to do > incremental sync for mailbox INBOX, retry with a full sync (Modseq > 66543 no longer in transaction log (highest=66547, > last_common_uid=46346, nextuid=46347)) > Sep 27 17:49:04 host dovecot[130]: > dsync-local(user at host)<5GWFD2CmcF+TJwAAsNnMGQ>: Error: Remote command > returned error 75: ssh <options> doveadm dsync-server -u user at host > > It seems to happen at random times to random users. > > My setup has 2 servers - users are connecting to the main server and > the secondary server is just for backup - noone is actually connecting > to it.Today I encountered a new error amidst the previous ones: dsync-local(user at host)<YfsUF+ulc190aAAAsNnMGQ>: Error: Mailbox INBOX.Trash: /var/vmail/domain/user/Maildir/.Trash/dovecot.index.log: Transaction log modseq tracking is corrupted - fixing Reio
On 28/09/2020 11:00, Reio Remma wrote:> Hello! > > I've started seeing intermittent dsync failures since upgrading > Dovecot to 2.3.11.3-3 (CentOS 8 using the official Dovecot repo). > > Sep 27 17:49:04 host dovecot[130]: > dsync-local(user at host)<5GWFD2CmcF+TJwAAsNnMGQ>: Warning: Failed to do > incremental sync for mailbox INBOX, retry with a full sync (Modseq > 66543 no longer in transaction log (highest=66547, > last_common_uid=46346, nextuid=46347)) > Sep 27 17:49:04 host dovecot[130]: > dsync-local(user at host)<5GWFD2CmcF+TJwAAsNnMGQ>: Error: Remote command > returned error 75: ssh <options> doveadm dsync-server -u user at host > > It seems to happen at random times to random users. > > My setup has 2 servers - users are connecting to the main server and > the secondary server is just for backup - noone is actually connecting > to it.For the last few days the problem has been fixated on a specific mailbox. There are no errors at all in the logs of the secondary server nor any further errors on the primary. Would it be a good idea to run doveadm force-resync on the primary server (or both?) for that mailbox? Thanks, Reio