B92: Could not receive data from WAL stream
Category: Standby Server Events
SQLSTATE: n/a
Urgency: low
SQLSTATE: n/a
Urgency: low
Example Postgres Log Output:
FATAL: could not receive data from WAL stream: SSL error: sslv3 alert unexpected messageExplanation:
This indicates that the receiving process for streaming replication on the standby server was terminated since it couldn't stream any more changes from the connection to the primary.
Typically you would see this when there is a network interruption between the primary and the secondary.
After this event the primary will retry connecting, and if that fails consecutively it will switch back to archive recovery.
Recommended Action:
Investigate the underlying network connection between primary and secondary. If the connection works as expected, this may also be due to high load on the primary.
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