Our environment: Postgres version 9.2.2 running on CentOS 6.4
Our backups using pg_basebackup are frequently failing with following error
"pg_basebackup: could not send feedback packet: server closed the connection
unexpectedly
This probably means the server terminated abnormally
before or while processing the request."
We are invoking pg_basebackup with these arguments : pg_basebackup -D
backup_dir -X stream -l backup_dir
In postgres logs we see this log message "terminating walsender process due to
replication timeout".
Our replication timeout is default 60 seconds. If we increase the replication
time to say 180 seconds, we see better results but backups still fail
occasionally.
Running strace on pg_basebackup process, we see that the fsync() call takes
significant time and could be responsible for causing this timeout in postgres.
Has anybody else run into the same issue? Is there a way to run pg_basebackup
without fsync() ?
