Hi Team, I am seeing in postgresql release notes that below bugs are fix in 9.6.x version but unable to find the details for about that bug .
*Fixed in 9.6.11* Fix unexpected timeouts when using wal_sender_timeout on a slow server (Noah Misch) . *Fixed in 9.6.12* 1. A new server parameter data_sync_retry has been added to control this; if you are certain that your kernel does not discard dirty data buffers in such scenarios, you can set data_sync_retry to on to restore the old behavior. 2. Fix logic for stopping a subset of WAL senders when synchronous replication is enabled 3. Make the archiver prioritize WAL history files over WAL data files while choosing which file to archive next *Fixed in 9.6.16* Ensure that temporary WAL and history files are removed at the end of archive recovery. Avoid unwanted delay during shutdown of a logical replication walsender. *Fixed in 9.6.17* Fix failure in logical replication publisher after a database crash and restart *Fixed in 9.6.18:* This can eliminate many attempts to fetch non-existent WAL files from archive storage, which is helpful if archive access is slow. Regards, Sameer Malve
