I seem to recall a post a while back where, due to the age of the remote end, the remote side command had to be entered in the command executed on the local side.

Do you have dsync on the 2.0.9 machine?

On Jul 27, 2020, at 4:16 PM, Kishore Potnuru kishore.reachme@gmail.com wrote:

This is what my understanding. May be I am also wrong here.

Backup option is there in my new server, production2.

When I use the command with -R option from new server, it is connecting to old server, Production1 and giving the output of the doveadm backup command in old server to get the data. If you see the command and error I posted, it shows the same.

Sorry just incase if I am wrong.

Kishore

On Mon, 27 Jul, 2020, 11:32 pm Antonio Leding, mailto:tech@leding.net> wrote: Well that option set still doesn’t look correct…

Here is the doveadm option set from my 2.2.2 server which is several weeks\months before 2.2.36…

[Jul-27 @ 15:25:09 ] > dovecot --version 2.2.2

[Jul-27 @ 15:26:53 ] > ls -l /usr/local/bin/doveadm -rwxr-xr-x 1 root root 1379203 May 22 2013 /usr/local/bin/doveadm

[Jul-27 @ 15:25:12 ] > doveadm usage: doveadm [-Dv] [-f <formatter>] <command> [<args>]

altmove [-u <user>|-A] [-S ] [-r] <search query> auth cache|test backup [-u <user>|-A] [-S ] [-dfR] [-l <secs>] [-m <mailbox>] [-n <namespace>] [-s <state>] <dest> batch [-u <user>|-A] [-S ] <sep> <cmd1> [<sep> <cmd2> [..]] config [doveconf parameters] copy [-u <user>|-A] [-S ] <destination> [user <source user>] <search query> director add|dump|flush|map|move|remove|ring|ring|ring|status dump [-t <type>] <path> exec <binary> [binary parameters] expunge [-u <user>|-A] [-S ] [-d] <search query> fetch [-u <user>|-A] [-S ] <fields> <search query> force-resync [-u <user>|-A] [-S ] <mailbox mask> fs copy|delete|get|iter|iter-dirs|put|stat help <cmd> import [-u <user>|-A] [-S ] [-s] <source mail location> <dest parent mailbox> <search query> index [-u <user>|-A] [-S ] [-q] [-n <max recent>] <mailbox mask> instance list|remove kick [-a <anvil socket path>] [-f] <user mask>[|] log errors|find|reopen|test mailbox create|delete|list|mutf7|rename|status|subscribe|unsubscribe mount add|list|remove move [-u <user>|-A] [-S ] <destination> [user <source user>] <search query> penalty [-a <anvil socket path>] [] proxy kick|list purge [-u <user>|-A] [-S ] pw [-l] [-p plaintext] [-r rounds] [-s scheme] [-t hash] [-u user] [-V] reload replicator remove|replicate|status search [-u <user>|-A] [-S ] <search query> sis deduplicate|find stats dump|top stop sync [-u <user>|-A] [-S ] [-dfR] [-l <secs>] [-m <mailbox>] [-n <namespace>] [-s <state>] <dest> user [-a <userdb socket path>] [-x <auth info>] [-f field] [-u] <user mask> [...] who [-a <anvil socket path>] [-1] [<user mask>] [] zlibconnect <host> [<port>]

...

On Jul 27, 2020, at 3:28 PM, Kishore Potnuru mailto:kishore.reachme@gmail.com> wrote:

Oh, I am extremely sorry. I was confused when typing the issue. Please help me in fixing the issue. Production1 is my old server. Production2 is my new server. Typing here correctly. Ignore all previous one's.

The new version is:

[root@production2 ~]# dovecot --version 2.2.36 (1f10bfa63)

The old version is :

[root@production1 ~]# dovecot --version 2.0.9

I have executed the command from the new server:

================================= [root@production2 test.org.com http://test.org.com/]# doveadm backup -R -u kishore@test.org.com mailto:kishore@test.org.com remote:vmail@production1.baplc.com mailto:remote%3Avmail@production1.baplc.com vmail@production1.baplc.com mailto:vmail@production1.baplc.com's password: usage: doveadm [-Dv] [-f <formatter>] <command> [<args>]

altmove [-u <user>|-A] [-S ] <search query> auth [-a <auth socket path>] [-x <auth info>] <user> [<password>] config [doveconf parameters] director add|flush|map|remove|status dump [-t <type>] <path> expunge [-u <user>|-A] [-S ] <search query> fetch [-u <user>|-A] [-S ] <fields> <search query> force-resync [-u <user>|-A] [-S ] <mailbox> help <cmd> import [-u <user>|-A] [-S ] <source mail location> <dest parent mailbox> <search query> kick [-a <anvil socket path>] [-f] <user mask>[|] log find|reopen|test mailbox create|delete|list|mutf7|rename|status|subscribe|unsubscribe penalty [-a <anvil socket path>] [] purge [-u <user>|-A] [-S ] pw [-l] [-p plaintext] [-r rounds] [-s scheme] [-u user] [-V] reload search [-u <user>|-A] [-S ] <search query> sis deduplicate|find stop user [-a <userdb socket path>] [-x <auth info>] <user mask> [...] who [-a <anvil socket path>] [-1] [<user mask>] [] dsync-local(kishore@test.org.com mailto:kishore@test.org.com): Error: read(vmail@production1.baplc.com mailto:vmail@production1.baplc.com) failed: EOF (version not received) dsync-local(kishore@test.org.com mailto:kishore@test.org.com): Error: Remote command returned error 1: ssh -lvmail production1.baplc.com http://production1.baplc.com/ doveadm dsync-server -ukishore@test.org.com mailto:ukishore@test.org.com

[root@production2 test.org.com http://test.org.com/]#

=================================

On Mon, 27 Jul, 2020, 11:18 pm Antonio Leding, mailto:tech@leding.net> wrote: Fair enough but the command snippet I posted was taken directly from your earlier post dated Mon Jul 27 23:11:06 EEST 2020 and it does say “production1”…I just double-checked as well...

FWIW…the server order in the command you just pasted is the exact reverse from the Jul 27th post I mentioned above…

Here you appear to be exec’ing the command on prod2 and trying to pull from the remote of prod 1…your earlier post was exec’ing on prod1 and pulling from the remote of prod2…

...

On Jul 27, 2020, at 3:10 PM, Kishore Potnuru mailto:kishore.reachme@gmail.com> wrote:

I am executing the command from the new server. I was executing the command from production2 server only. It has the backup option, but whereas production1 doesn't have it. Though I am executing from production2, I am seeing the below error. Is it becasue production1 server doesn't have that option? Please let me know, if it is confusing.

The new version is:

[root@production2 ~]# dovecot --version 2.2.36 (1f10bfa63)

The old version is :

[root@production1 ~]# dovecot --version 2.0.9

I have executed the command from the new server:

================================= [root@production2 test.org.com http://test.org.com/]# doveadm backup -R -u kishore@test.org.com mailto:kishore@test.org.com remote:vmail@production1.baplc.com mailto:remote%3Avmail@production1.baplc.com vmail@production1.baplc.com mailto:vmail@production1.baplc.com's password: usage: doveadm [-Dv] [-f <formatter>] <command> [<args>]

altmove [-u <user>|-A] [-S ] <search query> auth [-a <auth socket path>] [-x <auth info>] <user> [<password>] config [doveconf parameters] director add|flush|map|remove|status dump [-t <type>] <path> expunge [-u <user>|-A] [-S ] <search query> fetch [-u <user>|-A] [-S ] <fields> <search query> force-resync [-u <user>|-A] [-S ] <mailbox> help <cmd> import [-u <user>|-A] [-S ] <source mail location> <dest parent mailbox> <search query> kick [-a <anvil socket path>] [-f] <user mask>[|] log find|reopen|test mailbox create|delete|list|mutf7|rename|status|subscribe|unsubscribe penalty [-a <anvil socket path>] [] purge [-u <user>|-A] [-S ] pw [-l] [-p plaintext] [-r rounds] [-s scheme] [-u user] [-V] reload search [-u <user>|-A] [-S ] <search query> sis deduplicate|find stop user [-a <userdb socket path>] [-x <auth info>] <user mask> [...] who [-a <anvil socket path>] [-1] [<user mask>] [] dsync-local(kishore@test.org.com mailto:kishore@test.org.com): Error: read(vmail@production1.baplc.com mailto:vmail@production1.baplc.com) failed: EOF (version not received) dsync-local(kishore@test.org.com mailto:kishore@test.org.com): Error: Remote command returned error 1: ssh -lvmail production1.baplc.com http://production1.baplc.com/ doveadm dsync-server -ukishore@test.org.com mailto:ukishore@test.org.com

[root@production2 test.org.com http://test.org.com/]#

=================================

On Mon, Jul 27, 2020 at 10:55 PM Antonio Leding mailto:tech@leding.net> wrote: Not sure if this matters but the prompt when attempting the “doveadm backup” command shows it to be a “production" server…

[root at production1 https://dovecot.org/mailman/listinfo/dovecot test.org.com http://test.org.com/]# doveadm backup -R -u kishore at test.org.com https://dovecot.org/mailman/listinfo/dovecot remote:vmail at production2.baplc.com https://dovecot.org/mailman/listinfo/dovecot

...that would seem to me to indicate the old box. If so, then per Kishore’s earlier posts, the machine where this is being attempted is running 2.0.9…not 2.2.36

Maybe nothing but thought I would mention it…

...

On Jul 27, 2020, at 2:50 PM, Sami Ketola mailto:sami.ketola@dovecot.fi> wrote:

...

On 28. Jul 2020, at 0.10, Kishore Potnuru mailto:kishore.reachme@gmail.com> wrote:

Yes. Please find the details of the servers below. I am executing the command from one of the new servers.

I find it very hard to believe this. Shall I look at the version control when backup was added as option to doveadm?

2.2.36 has it:

[root@ketola ~]# dovecot --version 2.2.36.8 (0c9d56b41) [root@ketola ~]# doveadm backup doveadm backup [-u <user>|-A] [-S ] [-fPRU] [-l <secs>] [-r <rawlog path>] [-m <mailbox>] [-g ] [-n <namespace> | -N] [-x <exclude>] [-s <state>] [-t <start date>] -d|<dest>

Sami