Am 30.05.2018 um 21:21 schrieb A. Schulze:

Am 30.05.2018 um 18:08 schrieb SATOH Fumiyasu:

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I have a patchset to implement that. Please see the attachment.

Thanks!, I'll try to apply the patch on 2.2.36 and report my results...

done && looks good.

It's a matter of flavor if the processes should be contain the string with "dovecot" so I skipped the first patch "Do not prepend "dovecot-" to a process name"

now I could set:

• no instance_name -> everything as usual

• instance_name = foo -> syslog entries start with "foo: ..." -> child processes are named "dovecot-foo/..."

• instance_name = dovecot/foo -> syslog entries start with "dovecot/foo: ..." -> child processes are named "dovecot/foo/..." (same if I replace / with - or +)

• instance_name = bar/foo -> syslog entries start with "bar/foo: ..." -> child prosesses are named "dovecot-bar/foo/..."

I would love to see that feature upstream one day.

Thanks, Andreas

On 30 May 2018, at 19.08, SATOH Fumiyasu fumiyas@osstech.co.jp wrote:

Hi!

On Thu, 31 May 2018 00:44:58 +0900, A. Schulze wrote:

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When running multiple instances of dovecot on the same host (or running multiple docker container), it is hard to distinguish logs from different processes: the syslog entries are all prefixed with the same identifier "dovecot" It is hardcoded here: https://github.com/dovecot/core/blob/master/src/lib-master/master-service.c#...

Would it make sense to use the already implemented instance-name as syslog ident? How do others solve that problem?

I have a patchset to implement that. Please see the attachment.

Subject: [PATCH 1/2] master: Do not prepend "dovecot-" to a process name

Why not? I'd think it would be useful to always find dovecot processes.

• openlog(ident, options, facility);

• static char *syslog_ident = NULL;
• i_free(syslog_ident);
• syslog_ident = i_strdup(ident);
• openlog(syslog_ident, options, facility);

I don't think this is necessary?

•   env_put(t_strconcat("INSTANCE_NAME=", set->instance_name, NULL));

Also not needed.

But yeah, I guess in general it would make sense to use instance_name for syslog ident.

On Fri, 01 Jun 2018 03:40:07 +0900, Timo Sirainen wrote:

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When running multiple instances of dovecot on the same host (or running multiple docker container), it is hard to distinguish logs from different processes: the syslog entries are all prefixed with the same identifier "dovecot" It is hardcoded here: https://github.com/dovecot/core/blob/master/src/lib-master/master-service.c#...

Would it make sense to use the already implemented instance-name as syslog ident? How do others solve that problem?

I have a patchset to implement that. Please see the attachment.

...

Subject: [PATCH 1/2] master: Do not prepend "dovecot-" to a process name

Why not? I'd think it would be useful to always find dovecot processes.

I want to use 'director/*' names, not 'dovecot-director/*' for short name.

...

• openlog(ident, options, facility);

• static char *syslog_ident = NULL;
• i_free(syslog_ident);
• syslog_ident = i_strdup(ident);
• openlog(syslog_ident, options, facility);

I don't think this is necessary?

Sorry. I'm not expert of Dovecot implementation...

...

•   env_put(t_strconcat("INSTANCE_NAME=", set->instance_name, NULL));

Also not needed.

I think $INSTANCE_NAME environment variable is useful for external program, e.g., custom checkpassword program.

But yeah, I guess in general it would make sense to use instance_name for syslog ident.

Thanks.

-- -- Name: SATOH Fumiyasu @ OSS Technology Corp. (fumiyas @ osstech co jp) -- Business Home: https://www.OSSTech.co.jp/ -- GitHub Home: https://GitHub.com/fumiyas/ -- PGP Fingerprint: BBE1 A1C9 525A 292E 6729 CDEC ADC2 9DCA 5E1C CBCA