Shulou(Shulou.com)06/01 Report--

1) How WAL came you have to know,

2) What is synchronous stream replication and asynchronous stream replication

3) Which configuration parameters need to be changed for master and slave

4) How to check whether there are problems with replication, such as inconsistency, congestion, and data replication is not at the opposite end

5) What are the key parameters, such as archive_mode, archive_command, wal_keep_segments, synchronous_commit

Steps are better.

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