> Hi, > > I'm researching the synchronous replication. I see the backend of the > Primary Server calls SyncRepWaitForLSN() to wait for the Standby Server to > write the WAL records. > > If some thing happens, such as network failure or disk failure, causes the > Standby Server fail to receive WAL records or fail to write WAL records, > would the backend of the Primary Server catch and handle this failure? > Would the backend roll-back the transactions? Would the backend continue to > work?
I don't think the backend would roll back the transaction because when SyncRepWaitForLSN() is called, the transaction has been already committed. There's no way to roll back a transaction which has been committed. Best regards, -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese:http://www.sraoss.co.jp -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
