diff options
| author | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2018-04-11 23:39:48 +0300 |
|---|---|---|
| committer | Heikki Linnakangas <heikki.linnakangas@iki.fi> | 2018-04-11 23:40:27 +0300 |
| commit | 310d1379dd710322da398f5223051368fc876e23 (patch) | |
| tree | b040523a12b5c10565fc915d2e1805eacc9a5e5a /src | |
| parent | f530af8fc931b4063f1a9f4239908c7110666848 (diff) | |
Make local copy of client hostnames in backend status array.
The other strings, application_name and query string, were snapshotted to
local memory in pgstat_read_current_status(), but we forgot to do that for
client hostnames. As a result, the client hostname would appear to change in
the local copy, if the client disconnected.
Backpatch to all supported versions.
Author: Edmund Horner
Reviewed-by: Michael Paquier
Discussion: https://www.postgresql.org/message-id/CAMyN-kA7aOJzBmrYFdXcc7Z0NmW%2B5jBaf_m%3D_-77uRNyKC9r%3DA%40mail.gmail.com
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/postmaster/pgstat.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c index 189381f4a68..64b32d8578a 100644 --- a/src/backend/postmaster/pgstat.c +++ b/src/backend/postmaster/pgstat.c @@ -2842,6 +2842,7 @@ pgstat_read_current_status(void) LocalPgBackendStatus *localtable; LocalPgBackendStatus *localentry; char *localappname, + *localclienthostname, *localactivity; int i; @@ -2857,6 +2858,9 @@ pgstat_read_current_status(void) localappname = (char *) MemoryContextAlloc(pgStatLocalContext, NAMEDATALEN * MaxBackends); + localclienthostname = (char *) + MemoryContextAlloc(pgStatLocalContext, + NAMEDATALEN * MaxBackends); localactivity = (char *) MemoryContextAlloc(pgStatLocalContext, pgstat_track_activity_query_size * MaxBackends); @@ -2888,6 +2892,8 @@ pgstat_read_current_status(void) */ strcpy(localappname, (char *) beentry->st_appname); localentry->backendStatus.st_appname = localappname; + strcpy(localclienthostname, (char *) beentry->st_clienthostname); + localentry->backendStatus.st_clienthostname = localclienthostname; strcpy(localactivity, (char *) beentry->st_activity); localentry->backendStatus.st_activity = localactivity; } @@ -2910,6 +2916,7 @@ pgstat_read_current_status(void) localentry++; localappname += NAMEDATALEN; + localclienthostname += NAMEDATALEN; localactivity += pgstat_track_activity_query_size; localNumBackends++; } |