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switchover: check for pending archive files on the demotion candidate

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If the current primary (demotion candidate) still has any files to archive,
it will delay the shutdown until all files are archived. If there is a
substantial number of files, and/or the archive command executes slowly,
this will probably lead to an unwelcome delay in the switchover process.
This commit is contained in:
Ian Barwick
2017-08-08 00:37:20 +09:00
parent 068ecc963d
commit 2499b42ef8
12 changed files with 543 additions and 67 deletions
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dbutils.h
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@@ -323,6 +323,7 @@ RecoveryType get_recovery_type(PGconn *conn);
int get_primary_node_id(PGconn *conn);
bool get_replication_info(PGconn *conn, ReplInfo *replication_info);
bool can_use_pg_rewind(PGconn *conn, const char *data_directory, PQExpBufferData *reason);
int get_ready_archive_files(PGconn *conn, const char *data_directory);
/* extension functions */
ExtensionStatus get_repmgr_extension_status(PGconn *conn);