Обсуждение: pgsql: Improve logging of checkpoints.

Log Message:
-----------
Improve logging of checkpoints.  Patch by Greg Smith, worked over
by Heikki and a little bit by me.

Modified Files:
--------------
    pgsql/doc/src/sgml:
        config.sgml (r1.129 -> r1.130)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/config.sgml.diff?r1=1.129&r2=1.130)
    pgsql/src/backend/access/transam:
        xlog.c (r1.273 -> r1.274)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/xlog.c.diff?r1=1.273&r2=1.274)
    pgsql/src/backend/postmaster:
        bgwriter.c (r1.39 -> r1.40)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/postmaster/bgwriter.c.diff?r1=1.39&r2=1.40)
    pgsql/src/backend/storage/buffer:
        bufmgr.c (r1.222 -> r1.223)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/buffer/bufmgr.c.diff?r1=1.222&r2=1.223)
    pgsql/src/backend/utils/misc:
        guc.c (r1.403 -> r1.404)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c.diff?r1=1.403&r2=1.404)
        postgresql.conf.sample (r1.217 -> r1.218)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/postgresql.conf.sample.diff?r1=1.217&r2=1.218)
    pgsql/src/include/access:
        xlog.h (r1.79 -> r1.80)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/access/xlog.h.diff?r1=1.79&r2=1.80)

Does this

> +/*
> + * Log start of a checkpoint.
> + */
> +static void
> +LogCheckpointStart(int flags)
> +{
> +    elog(LOG, "checkpoint starting:%s%s%s%s%s%s",
> +         (flags & CHECKPOINT_IS_SHUTDOWN) ? " shutdown" : "",
> +         (flags & CHECKPOINT_IMMEDIATE) ? " immediate" : "",
> +         (flags & CHECKPOINT_FORCE) ? " force" : "",
> +         (flags & CHECKPOINT_WAIT) ? " wait" : "",
> +         (flags & CHECKPOINT_CAUSE_XLOG) ? " xlog" : "",
> +         (flags & CHECKPOINT_CAUSE_TIME) ? " time" : "");
> +}

work with translations?

--
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com

Heikki Linnakangas wrote:
> Does this
>
>> +/* + * Log start of a checkpoint.
>> + */
>> +static void
>> +LogCheckpointStart(int flags)
>> +{
>> +    elog(LOG, "checkpoint starting:%s%s%s%s%s%s",
>> +         (flags & CHECKPOINT_IS_SHUTDOWN) ? " shutdown" : "",
>> +         (flags & CHECKPOINT_IMMEDIATE) ? " immediate" : "",
>> +         (flags & CHECKPOINT_FORCE) ? " force" : "",
>> +         (flags & CHECKPOINT_WAIT) ? " wait" : "",
>> +         (flags & CHECKPOINT_CAUSE_XLOG) ? " xlog" : "",
>> +         (flags & CHECKPOINT_CAUSE_TIME) ? " time" : "");
>> +}
>
> work with translations?

In fact, they should be ereports, not elogs. I forgot to change them
when I increased the log level from DEBUG as it was in Greg's original
patch.

--
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com