On Sun, Apr 16, 2017 at 06:12:58AM +0000, Noah Misch wrote: > On Wed, Apr 12, 2017 at 10:55:08PM +0900, Fujii Masao wrote: > > When I shut down the publisher while I repeated creating and dropping > > the subscription in the subscriber, the publisher emitted the following > > PANIC error during shutdown checkpoint. > > > > PANIC: concurrent transaction log activity while database system is > > shutting down > > > > The cause of this problem is that walsender for logical replication can > > generate WAL records even during shutdown checkpoint. > > > > Firstly walsender keeps running until shutdown checkpoint finishes > > so that all the WAL including shutdown checkpoint record can be > > replicated to the standby. This was safe because previously walsender > > could not generate WAL records. However this assumption became > > invalid because of logical replication. That is, currenty walsender for > > logical replication can generate WAL records, for example, by executing > > CREATE_REPLICATION_SLOT command. This is an oversight in > > logical replication patch, I think. > > > > To fix this issue, we should terminate walsender for logical replication > > before shutdown checkpoint starts. Of course walsender for physical > > replication still needs to keep running until shutdown checkpoint ends, > > though. > > [Action required within three days. This is a generic notification.] > > The above-described topic is currently a PostgreSQL 10 open item. Peter, > since you committed the patch believed to have created it, you own this open > item. If some other commit is more relevant or if this does not belong as a > v10 open item, please let us know. Otherwise, please observe the policy on > open item ownership[1] and send a status update within three calendar days of > this message. Include a date for your subsequent status update. Testers may > discover new open items at any time, and I want to plan to get them all fixed > well in advance of shipping v10. Consequently, I will appreciate your efforts > toward speedy resolution. Thanks. > > [1] > https://www.postgresql.org/message-id/20170404140717.GA2675809%40tornado.leadboat.com
This PostgreSQL 10 open item is past due for your status update. Kindly send a status update within 24 hours, and include a date for your subsequent status update. Refer to the policy on open item ownership: https://www.postgresql.org/message-id/20170404140717.GA2675809%40tornado.leadboat.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
