Michael Banck wrote:
> diff --git a/src/backend/access/transam/xlog.c
> b/src/backend/access/transam/xlog.c
> index 5a4dbb9..f2716ae 100644
> --- a/src/backend/access/transam/xlog.c
> +++ b/src/backend/access/transam/xlog.c
> @@ -8085,10 +8085,14 @@ CreateCheckPoint(int flags)
>
> /*
> * If enabled, log checkpoint start. We postpone this until now so as
> not
> - * to log anything if we decided to skip the checkpoint.
> + * to log anything if we decided to skip the checkpoint. If we are
> during
> + * shutdown and checkpoints are not being logged, add a log message
> that a
> + * checkpoint is to be written and shutdown is potentially delayed.
> */
> if (log_checkpoints)
> LogCheckpointStart(flags, false);
> + else if (shutdown)
> + ereport(LOG, (errmsg("waiting for checkpoint ...")));
>
> TRACE_POSTGRESQL_CHECKPOINT_START(flags);
I think if we're going to emit log messages for shutdown checkpoints, we
ought to use the same format we already have, i.e. instead of having the
separate "waiting for checkpoint" message, just test "log_checkpoints ||
shutdown", then LogCheckpointStart. And for consistency also make sure
that the checkpoint end log line is also reported on shutdown
checkpoints regardless of log_checkpoints.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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