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Commit1e3e8b5

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Change the type of WalReceiverWaitStart wait event from Client to IPC.
Previously the type of this wait event was Client. But while thiswait event is being reported, walreceiver process is waiting forthe startup process to set initial data for streaming replication.It's not waiting for any activity on a socket connected to a userapplication or walsender. So this commit changes the type forWalReceiverWaitStart wait event to IPC.Author: Fujii MasaoReviewed-by: Kyotaro HoriguchiDiscussion:https://postgr.es/m/cdacc27c-37ff-f1a4-20e2-ce19933abfcc@oss.nttdata.com
1 parent51893c8 commit1e3e8b5

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3 files changed

+9
-9
lines changed

3 files changed

+9
-9
lines changed

‎doc/src/sgml/monitoring.sgml

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -1171,11 +1171,6 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
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<entry><literal>SSLOpenServer</literal></entry>
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<entry>Waiting for SSL while attempting connection.</entry>
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</row>
1174-
<row>
1175-
<entry><literal>WalReceiverWaitStart</literal></entry>
1176-
<entry>Waiting for startup process to send initial data for streaming
1177-
replication.</entry>
1178-
</row>
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<row>
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<entry><literal>WalSenderWaitForWAL</literal></entry>
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<entry>Waiting for WAL to be flushed in WAL sender process.</entry>
@@ -1771,6 +1766,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
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<entry><literal>WalrcvExit</literal></entry>
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<entry>Waiting for the walreceiver to exit.</entry>
17731768
</row>
1769+
<row>
1770+
<entry><literal>WalReceiverWaitStart</literal></entry>
1771+
<entry>Waiting for startup process to send initial data for streaming
1772+
replication.</entry>
1773+
</row>
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<row>
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<entry><literal>XactGroupUpdate</literal></entry>
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<entry>Waiting for the group leader to update transaction status at

‎src/backend/postmaster/pgstat.c

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -3970,9 +3970,6 @@ pgstat_get_wait_client(WaitEventClient w)
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caseWAIT_EVENT_SSL_OPEN_SERVER:
39713971
event_name="SSLOpenServer";
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break;
3973-
caseWAIT_EVENT_WAL_RECEIVER_WAIT_START:
3974-
event_name="WalReceiverWaitStart";
3975-
break;
39763973
caseWAIT_EVENT_WAL_SENDER_WAIT_WAL:
39773974
event_name="WalSenderWaitForWAL";
39783975
break;
@@ -4127,6 +4124,9 @@ pgstat_get_wait_ipc(WaitEventIPC w)
41274124
caseWAIT_EVENT_WALRCV_EXIT:
41284125
event_name="WalrcvExit";
41294126
break;
4127+
caseWAIT_EVENT_WAL_RECEIVER_WAIT_START:
4128+
event_name="WalReceiverWaitStart";
4129+
break;
41304130
caseWAIT_EVENT_XACT_GROUP_UPDATE:
41314131
event_name="XactGroupUpdate";
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break;

‎src/include/pgstat.h

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -953,7 +953,6 @@ typedef enum
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WAIT_EVENT_LIBPQWALRECEIVER_CONNECT,
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WAIT_EVENT_LIBPQWALRECEIVER_RECEIVE,
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WAIT_EVENT_SSL_OPEN_SERVER,
956-
WAIT_EVENT_WAL_RECEIVER_WAIT_START,
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WAIT_EVENT_WAL_SENDER_WAIT_WAL,
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WAIT_EVENT_WAL_SENDER_WRITE_DATA,
959958
}WaitEventClient;
@@ -1010,6 +1009,7 @@ typedef enum
10101009
WAIT_EVENT_SAFE_SNAPSHOT,
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WAIT_EVENT_SYNC_REP,
10121011
WAIT_EVENT_WALRCV_EXIT,
1012+
WAIT_EVENT_WAL_RECEIVER_WAIT_START,
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WAIT_EVENT_XACT_GROUP_UPDATE
10141014
}WaitEventIPC;
10151015

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