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authorFujii Masao <fujii@postgresql.org>2021-03-23 10:09:42 +0900
committerFujii Masao <fujii@postgresql.org>2021-03-23 10:09:42 +0900
commit1e3e8b51bda8ddd59984230f876f199c9ce3166a (patch)
treea2e9e464919db1b5d2f7c58309d75f2dff450cc7
parent51893c8463501fc9a38e39cc097773dbdfb9db82 (diff)
downloadpostgresql-1e3e8b51bda8ddd59984230f876f199c9ce3166a.tar.gz
postgresql-1e3e8b51bda8ddd59984230f876f199c9ce3166a.zip
Change the type of WalReceiverWaitStart wait event from Client to IPC.
Previously the type of this wait event was Client. But while this wait event is being reported, walreceiver process is waiting for the startup process to set initial data for streaming replication. It's not waiting for any activity on a socket connected to a user application or walsender. So this commit changes the type for WalReceiverWaitStart wait event to IPC. Author: Fujii Masao Reviewed-by: Kyotaro Horiguchi Discussion: https://postgr.es/m/cdacc27c-37ff-f1a4-20e2-ce19933abfcc@oss.nttdata.com
-rw-r--r--doc/src/sgml/monitoring.sgml10
-rw-r--r--src/backend/postmaster/pgstat.c6
-rw-r--r--src/include/pgstat.h2
3 files changed, 9 insertions, 9 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index db4b4e460c0..19540206f97 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1172,11 +1172,6 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<entry>Waiting for SSL while attempting connection.</entry>
</row>
<row>
- <entry><literal>WalReceiverWaitStart</literal></entry>
- <entry>Waiting for startup process to send initial data for streaming
- replication.</entry>
- </row>
- <row>
<entry><literal>WalSenderWaitForWAL</literal></entry>
<entry>Waiting for WAL to be flushed in WAL sender process.</entry>
</row>
@@ -1772,6 +1767,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<entry>Waiting for the walreceiver to exit.</entry>
</row>
<row>
+ <entry><literal>WalReceiverWaitStart</literal></entry>
+ <entry>Waiting for startup process to send initial data for streaming
+ replication.</entry>
+ </row>
+ <row>
<entry><literal>XactGroupUpdate</literal></entry>
<entry>Waiting for the group leader to update transaction status at
end of a parallel operation.</entry>
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index 208a33692f3..b7af7c2707a 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -3970,9 +3970,6 @@ pgstat_get_wait_client(WaitEventClient w)
case WAIT_EVENT_SSL_OPEN_SERVER:
event_name = "SSLOpenServer";
break;
- case WAIT_EVENT_WAL_RECEIVER_WAIT_START:
- event_name = "WalReceiverWaitStart";
- break;
case WAIT_EVENT_WAL_SENDER_WAIT_WAL:
event_name = "WalSenderWaitForWAL";
break;
@@ -4127,6 +4124,9 @@ pgstat_get_wait_ipc(WaitEventIPC w)
case WAIT_EVENT_WALRCV_EXIT:
event_name = "WalrcvExit";
break;
+ case WAIT_EVENT_WAL_RECEIVER_WAIT_START:
+ event_name = "WalReceiverWaitStart";
+ break;
case WAIT_EVENT_XACT_GROUP_UPDATE:
event_name = "XactGroupUpdate";
break;
diff --git a/src/include/pgstat.h b/src/include/pgstat.h
index be43c048028..2c823135509 100644
--- a/src/include/pgstat.h
+++ b/src/include/pgstat.h
@@ -953,7 +953,6 @@ typedef enum
WAIT_EVENT_LIBPQWALRECEIVER_CONNECT,
WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE,
WAIT_EVENT_SSL_OPEN_SERVER,
- WAIT_EVENT_WAL_RECEIVER_WAIT_START,
WAIT_EVENT_WAL_SENDER_WAIT_WAL,
WAIT_EVENT_WAL_SENDER_WRITE_DATA,
} WaitEventClient;
@@ -1010,6 +1009,7 @@ typedef enum
WAIT_EVENT_SAFE_SNAPSHOT,
WAIT_EVENT_SYNC_REP,
WAIT_EVENT_WALRCV_EXIT,
+ WAIT_EVENT_WAL_RECEIVER_WAIT_START,
WAIT_EVENT_XACT_GROUP_UPDATE
} WaitEventIPC;