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Enhance pg_stat_wal_receiver view to display host and port of sender server.

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Previously there was no way in the standby side to find out the host and port
of the sender server that the walreceiver was currently connected to when
multiple hosts and ports were specified in primary_conninfo. For that purpose,
this patch adds sender_host and sender_port columns into pg_stat_wal_receiver
view. They report the host and port that the active replication connection
currently uses.

Bump catalog version.

Author: Haribabu Kommi
Reviewed-by: Michael Paquier and me

Discussion: https://postgr.es/m/CAJrrPGcV_aq8=cdqkFhVDJKEnDQ70yRTTdY9RODzMnXNrCz2Ow@mail.gmail.com
This commit is contained in:
Fujii Masao
2018-03-31 07:51:22 +09:00
parent 11002f8afa
commit 9a895462d9
8 changed files with 94 additions and 6 deletions
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13
src/include/replication/walreceiver.h
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@@ -108,6 +108,13 @@ typedef struct
*/
char conninfo[MAXCONNINFO];
/*
* Host name (this can be a host name, an IP address, or a directory
* path) and port number of the active replication connection.
*/
char sender_host[NI_MAXHOST];
int sender_port;
/*
* replication slot name; is also used for walreceiver to connect with the
* primary
@@ -197,6 +204,9 @@ typedef WalReceiverConn *(*walrcv_connect_fn) (const char *conninfo, bool logica
char **err);
typedef void (*walrcv_check_conninfo_fn) (const char *conninfo);
typedef char *(*walrcv_get_conninfo_fn) (WalReceiverConn *conn);
typedef void (*walrcv_get_senderinfo_fn) (WalReceiverConn *conn,
char **sender_host,
int *sender_port);
typedef char *(*walrcv_identify_system_fn) (WalReceiverConn *conn,
TimeLineID *primary_tli,
int *server_version);
@@ -227,6 +237,7 @@ typedef struct WalReceiverFunctionsType
walrcv_connect_fn walrcv_connect;
walrcv_check_conninfo_fn walrcv_check_conninfo;
walrcv_get_conninfo_fn walrcv_get_conninfo;
walrcv_get_senderinfo_fn walrcv_get_senderinfo;
walrcv_identify_system_fn walrcv_identify_system;
walrcv_readtimelinehistoryfile_fn walrcv_readtimelinehistoryfile;
walrcv_startstreaming_fn walrcv_startstreaming;
@@ -246,6 +257,8 @@ extern PGDLLIMPORT WalReceiverFunctionsType *WalReceiverFunctions;
WalReceiverFunctions->walrcv_check_conninfo(conninfo)
#define walrcv_get_conninfo(conn) \
WalReceiverFunctions->walrcv_get_conninfo(conn)
#define walrcv_get_senderinfo(conn, sender_host, sender_port) \
WalReceiverFunctions->walrcv_get_senderinfo(conn, sender_host, sender_port)
#define walrcv_identify_system(conn, primary_tli, server_version) \
WalReceiverFunctions->walrcv_identify_system(conn, primary_tli, server_version)
#define walrcv_readtimelinehistoryfile(conn, tli, filename, content, size) \