I just found this post from 2017: http://dovecot.2317879.n4.nabble.com/replicator-crashing-oom-td59402.html I removed the replication_sync_timeout setting and now it's working fine.
Thomas Tsiakalakis Team Applikationsbetrieb GDV Dienstleistungs-GmbH Tel: +49(40)33449-4318 E-Mail: mailto:thomas.tsiakala...@gdv-dl.de GDV Dienstleistungs-GmbH Glockengießerwall 1 D-20095 Hamburg www.gdv-dl.de Niederlassungen: Wilhelmstraße 43 / 43 G 10117 Berlin Frankenstraße 18a 20097 Hamburg Sitz und Registergericht: Hamburg HRB 145291 USt.-IdNr : DE 205183123 Geschäftsführer: Dr. Jens Bartenwerfer Fred di Giuseppe Chiachiarella Aufsichtsratsvorsitzender: Werner Schmidt ------------------------------------------------------------------ Diese E-Mail und alle Anhänge enthalten vertrauliche und/oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe der E-Mail ist nicht gestattet. This e-mail and any attached files may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden. -----Ursprüngliche Nachricht----- Von: Aki Tuomi <aki.tu...@open-xchange.com> Gesendet: Freitag, 14. August 2020 12:21 An: Thomas Tsiakalakis <thomas.tsiakala...@gdv-dl.de>; dovecot@dovecot.org Betreff: Re: replicator: Panic: data stack: Out of memory Try setting service replicator { vsz_limit = 0 } Aki > On 14/08/2020 13:19 Thomas Tsiakalakis <thomas.tsiakala...@gdv-dl.de> wrote: > > > > So nobody has any idea why this could happen? > Let me know if I should provide more Information Thanks > > ThomasTsiakalakis > > Team Applikationsbetrieb > GDV Dienstleistungs-GmbH > Tel: +49(40)33449-4318 > Fax: > E-Mail:thomas.tsiakala...@gdv-dl.de > > > > > GDV Dienstleistungs-GmbH > Glockengießerwall 1 > D-20095 Hamburg > www.gdv-dl.de (http://www.gdv-dl.de) > > Niederlassungen: > > Wilhelmstraße 43 / 43 G > 10117 Berlin > > Frankenstraße 18 > 20097 Hamburg > > Sitz und Registergericht: Hamburg > HRB 145291 > USt.-IdNr : DE 205183123 > > Geschäftsführer: > Dr. Jens Bartenwerfer > Fred di Giuseppe Chiachiarella > > Aufsichtsratsvorsitzender: Werner Schmidt > > ------------------------------------------------------------------ > Diese E-Mail und alle Anhänge enthalten vertrauliche und/oder rechtlich > geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder > diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den > Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die > unbefugte Weitergabe der E-Mail ist nicht gestattet. > > This e-mail and any attached files may contain confidential and/or > privileged information. If you are not the intended recipient (or have > received this e-mail in error) please notify the sender immediately and > destroy this e-mail. Any unauthorised copying, disclosure or distribution of > the material in this e-mail is strictly forbidden. > > > Von:Thomas Tsiakalakis > Gesendet: Dienstag, 23. Juni 2020 11:25 > An: dovecot@dovecot.org > Betreff: AW: replicator: Panic: data stack: Out of memory I managed > to convince the System that I really want a core dump Von:Thomas > Tsiakalakis > Gesendet: Donnerstag, 18. Juni 2020 16:26 > An: 'dovecot@dovecot.org' <dovecot@dovecot.org> > Betreff: replicator: Panic: data stack: Out of memory Hi, I have set > up 2 SLES 15 Hosts with dovecot and replication. Everything seems to work > fine but every time a message is delivered, I get an out of memory error in > the logs. The Replication itself seems to work fine though. > I increased default_vsz_limit to 512M but the only thing that changed > was that dovecot was trying to allocate 1073741864 bytes instead of > 268435496 As I said, I’m running SLES 15 SP1 and Dovecot 2.3.10 (0da0eff44) > (both Hosts have the same version) Each Host currently has 8GB of Memory. > # free -h > total used free shared buff/cache available > Mem: 7.8Gi 278Mi 7.3Gi 47Mi 183Mi 7.2Gi > Swap: 4.0Gi 0B 4.0Gi > # journalctl -f > Jun 18 15:55:48 mail1 postfix/pickup[3457]: 18533C009C8: uid=0 > from=<root> Jun 18 15:55:48 mail1 postfix/cleanup[3669]: 18533C009C8: > message-id=<20200618135548.18533C009C8@mail1> > Jun 18 15:55:48 mail1 postfix/qmgr[3458]: 18533C009C8: > from=<root@mail1>, size=431, nrcpt=1 (queue active) Jun 18 15:55:48 > mail1 dovecot[1833]: lmtp(3673): Connect from local Jun 18 15:55:48 > mail1 dovecot[1833]: replicator: Panic: data stack: Out of memory when > allocating 268435496 bytes Jun 18 15:55:48 mail1 dovecot[1833]: replicator: > Error: Raw backtrace: > /usr/lib64/dovecot/libdovecot.so.0(backtrace_append+0x42) [0x7f8346d6d262] -> > /usr/lib64/dovecot/libdovecot.so.0(backtrace_get+0x1e) [0x7f8346d6d37e] -> > /usr/lib64/dovecot/libdovecot.so.0(+0xebcee) [0x7f8346d77cee] -> > /usr/lib64/dovecot/libdovecot.so.0(+0xebd91) [0x7f8346d77d91] -> > /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f8346cd1f8b] -> > /usr/lib64/dovecot/libdovecot.so.0(t_pop_last_unsafe+0) [0x7f8346d73660] -> > /usr/lib64/dovecot/libdovecot.so.0(+0xe7a50) [0x7f8346d73a50] -> > /usr/lib64/dovecot/libdovecot.so.0(+0x10eb58) [0x7f8346d9ab58] -> > /usr/lib64/dovecot/libdovecot.so.0(+0xe3ac5) [0x7f8346d6fac5] -> > /usr/lib64/dovecot/libdovecot.so.0(buffer_write+0xf2) [0x7f8346d6fdb2] -> > dovecot/replicator(replicator_queue_push+0xde) [0x5648989a5cde] -> > dovecot/replicator(+0x5464) [0x5648989a5464] -> dovecot/replicator(+0x4a0b) > [0x5648989a4a0b] -> dovecot/replicator(+0x4c02) [0x5648989a4c02] -> > /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x69) [0x7f8346d90c99] -> > /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x134) > [0x7f8346d92574] -> > /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c) [0x7f8346d90d9c] > -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f8346d90fc8] -> > /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f8346d01873] > -> dovecot/replicator(main+0x1a0) [0x5648989a3cb0] -> > /lib64/libc.so.6(__libc_start_main+0xea) [0x7f83468f534a] -> > dovecot/replicator(_start+0x2a) [0x5648989a3d5a] Jun 18 15:55:48 mail1 > dovecot[1833]: lmtp(t...@example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: Warning: > replication(t...@example.com): Sync failure: > Jun 18 15:55:48 mail1 dovecot[1833]: > lmtp(t...@example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: Warning: > replication(t...@example.com): Remote sent invalid input: - Jun 18 > 15:55:48 mail1 dovecot[1833]: > lmtp(t...@example.com)<3673><q5sLCGRy615ZDgAATn/NZw>: > msgid=<20200618135548.18533C009C8@mail1>: saved mail to INBOX Jun 18 > 15:55:48 mail1 dovecot[1833]: lmtp(3673): Disconnect from local: > Client has quit the connection (state=READY) Jun 18 15:55:48 mail1 > postfix/lmtp[3672]: 18533C009C8: to=<t...@example.com>, > orig_to=<t...@domain.com>, relay=mail1[private/dovecot-lmtp], > delay=0.17, delays=0.02/0.01/0.02/0.13, dsn=2.0.0, status=sent (250 > 2.0.0 <t...@example.com> q5sLCGRy615ZDgAATn/NZw Saved) Jun 18 15:55:48 > mail1 postfix/qmgr[3458]: 18533C009C8: removed Jun 18 15:55:48 mail1 > dovecot[1833]: replicator: Fatal: master: service(replicator): child > 2948 killed with signal 6 (core not dumped - > https://dovecot.org/bugreport.html#coredumps - set > /proc/sys/fs/suid_dumpable to 2)
