Do we need to review the fsync error handling in pg_receivewal and
pg_recvlogical, following the recent backend changes? The current
default behavior is that these tools will log fsync errors and then
reconnect and proceed with the next data streaming in. As a result, you
might then have some files in the accumulated WAL that have not been
fsynced. Perhaps a hard exit would be more appropriate?
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Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services