Did you try gunzip? Aki
> On 17/01/2024 20:32 EET Alexander Chekalin <acheka...@lazurit.com> wrote: > > > Thank you! > > Here is the whole problem I see: > > as I saw how good it is to have messages compressed I used > https://github.com/George-NG/dovecot-maildir-compress script to compress > whole mailboxes and thus save more space on disk. Looks like lock won't > worked well so now I can see lines like that in Dovecot logs: > > Error: Mailbox ... : Deleting corrupted cache record uid=61: UID 61: > Broken virtual size in mailbox ... : read(compress(/data/vmail/...)): > FETCH BODY[] got too little data: 38910 vs 70020" > > I tried to recover these messages by uncompress files with your command, > and I can say it was possible to uncompress some files while others (the > one that were reffered by these errors lines) seems can't be recovered. > > Seems like I have data lost in some messages and this is not something I > got used with dovecot which I use since pre-1.0 version. > > P.S. I also tried gzip-ing messages so how have to ask you for the > command to un-gzip messages, as "doveadm fs get compress > gzip:6:posix:prefix=$PWD/ filename" seems not working for me. > > > >> On 17/01/2024 18:08 eetacheka...@lazurit.com wrote: > >> > >> > >> Some time ago I enabled compression on incoming messages, so LMTP > >> delivered messages were compressed. Good idea in terms of disk space, but > >> now I cannot uncompress any of these messages even when I need to! > >> > >> I was using this setting: > >> > >> plugins { > >> zlib_save = lz4 > >> } > >> > >> and now I can see this string at the beginning of each message file - > >> "Dovecot-LZ4", so no other software can uncompress them for me. > >> > >> Please advise, how can I uncompress message file in Maildir mailbox when I > >> need to access its contents directly? > > > > One simple way: > > > > doveadm fs get compress lz4:6:posix:prefix=$PWD/ filename > > > > AkiThank you! > Here is the whole problem I see: > as I saw how good it is to have messages compressed I used https://github.com/ > George-NG/dovecot-maildir-compress script to compress whole mailboxes and thus > save more space on disk. Looks like lock won't worked well so now I can see > lines like that in Dovecot logs: > Error: Mailbox ... : Deleting corrupted cache record uid=61: UID 61: Broken > virtual size in mailbox ... : read(compress(/data/vmail/...)): FETCH BODY[] > got > too little data: 38910 vs 70020" > I tried to recover these messages by uncompress files with your command, and I > can say it was possible to uncompress some files while others (the one that > were reffered by these errors lines) seems can't be recovered. > Seems like I have data lost in some messages and this is not something I got > used with dovecot which I use since pre-1.0 version. > P.S. I also tried gzip-ing messages so how have to ask you for the command to > un-gzip messages, as "doveadm fs get compress gzip:6:posix:prefix=$PWD/ > filename" seems not working for me. > > On 17/01/2024 18:08 EET acheka...@lazurit.com wrote: > > > Some time ago I enabled compression on incoming messages, > so LMTP delivered messages were compressed. Good idea in > terms of disk space, but now I cannot uncompress any of > these messages even when I need to! > > I was using this setting: > > plugins { > zlib_save = lz4 > } > > and now I can see this string at the beginning of each > message file - "Dovecot-LZ4", so no other software can > uncompress them for me. > > Please advise, how can I uncompress message file in Maildir > mailbox when I need to access its contents directly? > > One simple way: > > doveadm fs get compress lz4:6:posix:prefix=$PWD/ filename > > Aki > _______________________________________________ > dovecot mailing list -- dovecot@dovecot.org > To unsubscribe send an email to dovecot-le...@dovecot.org _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-le...@dovecot.org
