how to recovery your database when stops replicating

Hi all,

I´m testing BDR and have a big deal. When it gets corrupted, after time of working well, I cannot do a recovery and the only way to get the system working again seems to reset all again. It means:

-          Stop all nodes.

-          Delete data directories in both nodes

-          Comment BDR entries in postgresql.conf in node A.

-          Start node A and restore database.

-          Uncomment BDR entries in node A.

-          Start node B with BDR entries so that executes initial copy.

-          It works again.

I think there should be a better way to do it. I have some mails from here telling this:

-          Execute this sql in both nodes:

SELECT slot_name, datoid, database, active FROM pg_replication_slots WHERE slot_name LIKE 'bdr_'||(SELECT oid FROM pg_database WHERE datname = current_database())||'_%';

-          Execute this sql to be able to DDL again:

COPY (SELECT * FROM pg_logical_slot_get_binary_changes('bdr_17911_6120567807158814813_1_16385__', NULL, 1, 'interactive', 'true')) TO '/dev/null';

-          Reconnect  and do this:

SET bdr.skip_ddl_replication = on;

But that method don´t work for me. Any help? How do you recovery your database when stops replicating?

Thanks in advance

Ruth Patricia Melendo Ventura

Software Engineer

TELTRONIC, S.A.U.

T: +34 976 465656   Ext. 179

F: +34 976 465722

www.teltronic.es

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