? postgresql-8.1devel.tar.gz
Index: doc/src/sgml/runtime.sgml
===================================================================
RCS file: /projects/cvsroot/pgsql/doc/src/sgml/runtime.sgml,v
retrieving revision 1.335
diff -u -c -r1.335 runtime.sgml
*** doc/src/sgml/runtime.sgml 2 Jul 2005 19:16:36 -0000 1.335
--- doc/src/sgml/runtime.sgml 4 Jul 2005 10:41:33 -0000
***************
*** 894,899 ****
--- 894,946 ----
+
+ tcp_keepalives_idle (integer)
+
+ tcp_keepalives_idle> configuration parameter
+
+
+
+ On systems that support the TCP_KEEPIDLE socket option, specifies the
+ number of seconds between sending keepalives on an otherwise idle
+ connection. A value of 0 uses the system default. If TCP_KEEPIDLE is
+ not supported, this parameter must be 0. This option is ignored for
+ connections made via a Unix-domain socket.
+
+
+
+
+
+ tcp_keepalives_interval (integer)
+
+ tcp_keepalives_interval> configuration parameter
+
+
+
+ On systems that support the TCP_KEEPINTVL socket option, specifies how
+ long, in seconds, to wait for a response to a keepalive before
+ retransmitting. A value of 0 uses the system default. If TCP_KEEPINTVL
+ is not supported, this parameter must be 0. This option is ignored
+ for connections made via a Unix-domain socket.
+
+
+
+
+
+ tcp_keepalives_count (integer)
+
+ tcp_keepalives_count> configuration parameter
+
+
+
+ On systems that support the TCP_KEEPCNT socket option, specifies how
+ many keepalives may be lost before the connection is considered dead.
+ A value of 0 uses the system default. If TCP_KEEPINTVL is not
+ supported, this parameter must be 0.
+
+
+
+
Index: src/backend/libpq/pqcomm.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/libpq/pqcomm.c,v
retrieving revision 1.176
diff -u -c -r1.176 pqcomm.c
*** src/backend/libpq/pqcomm.c 22 Feb 2005 04:35:57 -0000 1.176
--- src/backend/libpq/pqcomm.c 4 Jul 2005 10:41:33 -0000
***************
*** 87,93 ****
#include "libpq/libpq.h"
#include "miscadmin.h"
#include "storage/ipc.h"
!
/*
* Configuration options
--- 87,93 ----
#include "libpq/libpq.h"
#include "miscadmin.h"
#include "storage/ipc.h"
! #include "utils/guc.h"
/*
* Configuration options
***************
*** 594,599 ****
--- 594,612 ----
elog(LOG, "setsockopt(SO_KEEPALIVE) failed: %m");
return STATUS_ERROR;
}
+
+ /* Set default keepalive parameters. This should also catch
+ * misconfigurations (non-zero values when socket options aren't
+ * supported)
+ */
+ if (pq_setkeepalivesidle(tcp_keepalives_idle, port) != STATUS_OK)
+ return STATUS_ERROR;
+
+ if (pq_setkeepalivesinterval(tcp_keepalives_interval, port) != STATUS_OK)
+ return STATUS_ERROR;
+
+ if (pq_setkeepalivescount(tcp_keepalives_count, port) != STATUS_OK)
+ return STATUS_ERROR;
}
return STATUS_OK;
***************
*** 1158,1160 ****
--- 1171,1369 ----
/* in non-error case, copy.c will have emitted the terminator line */
DoingCopyOut = false;
}
+
+ int
+ pq_getkeepalivesidle(Port *port)
+ {
+ #ifdef TCP_KEEPIDLE
+ if (IS_AF_UNIX(port->laddr.addr.ss_family))
+ return 0;
+
+ if (port->keepalives_idle != 0)
+ return port->keepalives_idle;
+
+ if (port->default_keepalives_idle == 0)
+ {
+ socklen_t size = sizeof(port->default_keepalives_idle);
+ if (getsockopt(port->sock, SOL_TCP, TCP_KEEPIDLE,
+ (char *) &port->default_keepalives_idle,
+ &size) < 0)
+ {
+ elog(LOG, "getsockopt(TCP_KEEPIDLE) failed: %m");
+ return -1;
+ }
+ }
+
+ return port->default_keepalives_idle;
+ #else
+ return 0;
+ #endif
+ }
+
+ int
+ pq_setkeepalivesidle(int idle, Port *port)
+ {
+ if (IS_AF_UNIX(port->laddr.addr.ss_family))
+ return STATUS_OK;
+
+ #ifdef TCP_KEEPIDLE
+ if (idle == port->keepalives_idle)
+ return STATUS_OK;
+
+ if (port->default_keepalives_idle == 0)
+ {
+ if (pq_getkeepalivesidle(port) < 0)
+ return STATUS_ERROR;
+ }
+
+ if (idle == 0)
+ idle = port->default_keepalives_idle;
+
+ if (setsockopt(port->sock, SOL_TCP, TCP_KEEPIDLE,
+ (char *) &idle, sizeof(idle)) < 0)
+ {
+ elog(LOG, "setsockopt(TCP_KEEPIDLE) failed: %m");
+ return STATUS_ERROR;
+ }
+
+ port->keepalives_idle = idle;
+ #else
+ if (idle != 0)
+ {
+ elog(LOG, "setsockopt(TCP_KEEPIDLE) not supported");
+ return STATUS_ERROR;
+ }
+ #endif
+
+ return STATUS_OK;
+ }
+
+ int
+ pq_getkeepalivesinterval(Port *port)
+ {
+ #ifdef TCP_KEEPINTVL
+ if (IS_AF_UNIX(port->laddr.addr.ss_family))
+ return 0;
+
+ if (port->keepalives_interval != 0)
+ return port->keepalives_interval;
+
+ if (port->default_keepalives_interval == 0)
+ {
+ socklen_t size = sizeof(port->default_keepalives_interval);
+ if (getsockopt(port->sock, SOL_TCP, TCP_KEEPINTVL,
+ (char *) &port->default_keepalives_interval,
+ &size) < 0)
+ {
+ elog(LOG, "getsockopt(TCP_KEEPINTVL) failed: %m");
+ return -1;
+ }
+ }
+
+ return port->default_keepalives_interval;
+ #else
+ return 0;
+ #endif
+ }
+
+ int
+ pq_setkeepalivesinterval(int interval, Port *port)
+ {
+ if (IS_AF_UNIX(port->laddr.addr.ss_family))
+ return STATUS_OK;
+
+ #ifdef TCP_KEEPINTVL
+ if (interval == port->keepalives_interval)
+ return STATUS_OK;
+
+ if (port->default_keepalives_interval == 0) {
+ if (pq_getkeepalivesinterval(port) < 0)
+ return STATUS_ERROR;
+ }
+
+ if (interval == 0)
+ interval = port->default_keepalives_interval;
+
+ if (setsockopt(port->sock, SOL_TCP, TCP_KEEPINTVL,
+ (char *) &interval, sizeof(interval)) < 0)
+ {
+ elog(LOG, "setsockopt(TCP_KEEPINTVL) failed: %m");
+ return STATUS_ERROR;
+ }
+
+ port->keepalives_interval = interval;
+ #else
+ if (interval != 0)
+ {
+ elog(LOG, "setsockopt(TCP_KEEPINTVL) not supported");
+ return STATUS_ERROR;
+ }
+ #endif
+
+ return STATUS_OK;
+ }
+
+ int
+ pq_getkeepalivescount(Port *port)
+ {
+ #ifdef TCP_KEEPCNT
+ if (IS_AF_UNIX(port->laddr.addr.ss_family))
+ return 0;
+
+ if (port->keepalives_count != 0)
+ return port->keepalives_count;
+
+ if (port->default_keepalives_count == 0)
+ {
+ socklen_t size = sizeof(port->default_keepalives_count);
+ if (getsockopt(port->sock, SOL_TCP, TCP_KEEPCNT,
+ (char *) &port->default_keepalives_count,
+ &size) < 0)
+ {
+ elog(LOG, "getsockopt(TCP_KEEPCNT) failed: %m");
+ return -1;
+ }
+ }
+
+ return port->default_keepalives_count;
+ #else
+ return 0;
+ #endif
+ }
+
+ int
+ pq_setkeepalivescount(int count, Port *port)
+ {
+ if (IS_AF_UNIX(port->laddr.addr.ss_family))
+ return STATUS_OK;
+
+ #ifdef TCP_KEEPCNT
+ if (count == port->keepalives_count)
+ return STATUS_OK;
+
+ if (port->default_keepalives_count == 0) {
+ if (pq_getkeepalivescount(port) < 0)
+ return STATUS_ERROR;
+ }
+
+ if (count == 0)
+ count = port->default_keepalives_count;
+
+ if (setsockopt(port->sock, SOL_TCP, TCP_KEEPCNT,
+ (char *) &count, sizeof(count)) < 0)
+ {
+ elog(LOG, "setsockopt(TCP_KEEPCNT) failed: %m");
+ return STATUS_ERROR;
+ }
+
+ port->keepalives_count = count;
+ #else
+ if (count != 0)
+ {
+ elog(LOG, "setsockopt(TCP_KEEPCNT) not supported");
+ return STATUS_ERROR;
+ }
+ #endif
+
+ return STATUS_OK;
+ }
Index: src/backend/utils/misc/guc.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/utils/misc/guc.c,v
retrieving revision 1.271
diff -u -c -r1.271 guc.c
*** src/backend/utils/misc/guc.c 28 Jun 2005 05:09:02 -0000 1.271
--- src/backend/utils/misc/guc.c 4 Jul 2005 10:41:33 -0000
***************
*** 117,122 ****
--- 117,128 ----
static bool assign_transaction_read_only(bool newval, bool doit, GucSource source);
static const char *assign_canonical_path(const char *newval, bool doit, GucSource source);
+ static bool assign_tcp_keepalives_idle(int newval, bool doit, GucSource source);
+ static bool assign_tcp_keepalives_interval(int newval, bool doit, GucSource source);
+ static bool assign_tcp_keepalives_count(int newval, bool doit, GucSource source);
+ static const char *show_tcp_keepalives_idle(void);
+ static const char *show_tcp_keepalives_interval(void);
+ static const char *show_tcp_keepalives_count(void);
/*
* GUC option variables that are exported from this module
***************
*** 158,163 ****
--- 164,172 ----
char *IdentFileName;
char *external_pid_file;
+ int tcp_keepalives_idle;
+ int tcp_keepalives_interval;
+ int tcp_keepalives_count;
/*
* These variables are all dummies that don't do anything, except in some
***************
*** 1375,1380 ****
--- 1384,1418 ----
BLCKSZ, BLCKSZ, BLCKSZ, NULL, NULL
},
+ {
+ {"tcp_keepalives_idle", PGC_USERSET, CLIENT_CONN_OTHER,
+ gettext_noop("Seconds between issuing TCP keepalives."),
+ gettext_noop("A value of 0 uses the system default."),
+ },
+ &tcp_keepalives_idle,
+ 0, 0, INT_MAX, assign_tcp_keepalives_idle, show_tcp_keepalives_idle
+ },
+
+ {
+ {"tcp_keepalives_interval", PGC_USERSET, CLIENT_CONN_OTHER,
+ gettext_noop("Seconds between TCP keepalive retransmits."),
+ gettext_noop("A value of 0 uses the system default."),
+ },
+ &tcp_keepalives_interval,
+ 0, 0, INT_MAX, assign_tcp_keepalives_interval, show_tcp_keepalives_interval
+ },
+
+ {
+ {"tcp_keepalives_count", PGC_USERSET, CLIENT_CONN_OTHER,
+ gettext_noop("Maximum number of TCP keepalive retransmits."),
+ gettext_noop("This controls the number of consecutive keepalive retransmits that can be "
+ "lost before a connection is considered dead. A value of 0 uses the "
+ "system default."),
+ },
+ &tcp_keepalives_count,
+ 0, 0, INT_MAX, assign_tcp_keepalives_count, show_tcp_keepalives_count
+ },
+
/* End-of-list marker */
{
{NULL, 0, 0, NULL, NULL}, NULL, 0, 0, 0, NULL, NULL
***************
*** 5744,5748 ****
--- 5782,5842 ----
return newval;
}
+ static bool
+ assign_tcp_keepalives_idle(int newval, bool doit, GucSource source)
+ {
+ if (doit && MyProcPort != NULL)
+ {
+ return (pq_setkeepalivesidle(newval, MyProcPort) == STATUS_OK);
+ }
+
+ return true;
+ }
+
+ static const char *
+ show_tcp_keepalives_idle(void)
+ {
+ static char nbuf[32];
+ snprintf(nbuf, sizeof(nbuf), "%d", MyProcPort == NULL ? 0 : pq_getkeepalivesidle(MyProcPort));
+ return nbuf;
+ }
+
+ static bool
+ assign_tcp_keepalives_interval(int newval, bool doit, GucSource source)
+ {
+ if (doit && MyProcPort != NULL)
+ {
+ return (pq_setkeepalivesinterval(newval, MyProcPort) == STATUS_OK);
+ }
+
+ return true;
+ }
+
+ static const char *
+ show_tcp_keepalives_interval(void)
+ {
+ static char nbuf[32];
+ snprintf(nbuf, sizeof(nbuf), "%d", MyProcPort == NULL ? 0 : pq_getkeepalivesinterval(MyProcPort));
+ return nbuf;
+ }
+
+ static bool
+ assign_tcp_keepalives_count(int newval, bool doit, GucSource source)
+ {
+ if (doit && MyProcPort != NULL)
+ {
+ return (pq_setkeepalivescount(newval, MyProcPort) == STATUS_OK);
+ }
+
+ return true;
+ }
+
+ static const char *
+ show_tcp_keepalives_count(void)
+ {
+ static char nbuf[32];
+ snprintf(nbuf, sizeof(nbuf), "%d", MyProcPort == NULL ? 0 : pq_getkeepalivescount(MyProcPort));
+ return nbuf;
+ }
#include "guc-file.c"
Index: src/backend/utils/misc/postgresql.conf.sample
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/utils/misc/postgresql.conf.sample,v
retrieving revision 1.151
diff -u -c -r1.151 postgresql.conf.sample
*** src/backend/utils/misc/postgresql.conf.sample 2 Jul 2005 18:46:45 -0000 1.151
--- src/backend/utils/misc/postgresql.conf.sample 4 Jul 2005 10:41:33 -0000
***************
*** 70,75 ****
--- 70,80 ----
#krb_caseins_users = off
#krb_srvname = 'postgres'
+ # - TCP Keepalives -
+ # see 'man 7 tcp' for details
+ #tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds; 0 uses the system default.
+ #tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds; 0 uses the system default.
+ #tcp_keepalives_count = 0 # TCP_KEEPCNT, in seconds; 0 uses the system default.
#---------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
Index: src/bin/psql/tab-complete.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/bin/psql/tab-complete.c,v
retrieving revision 1.133
diff -u -c -r1.133 tab-complete.c
*** src/bin/psql/tab-complete.c 22 Jun 2005 21:14:30 -0000 1.133
--- src/bin/psql/tab-complete.c 4 Jul 2005 10:41:33 -0000
***************
*** 600,605 ****
--- 600,608 ----
"superuser_reserved_connections",
"syslog_facility",
"syslog_ident",
+ "tcp_keepalives_idle",
+ "tcp_keepalives_interval",
+ "tcp_keepalives_count",
"temp_buffers",
"TimeZone",
"trace_notify",
Index: src/include/libpq/libpq-be.h
===================================================================
RCS file: /projects/cvsroot/pgsql/src/include/libpq/libpq-be.h,v
retrieving revision 1.49
diff -u -c -r1.49 libpq-be.h
*** src/include/libpq/libpq-be.h 31 Dec 2004 22:03:32 -0000 1.49
--- src/include/libpq/libpq-be.h 4 Jul 2005 10:41:33 -0000
***************
*** 25,30 ****
--- 25,33 ----
#include
#include
#endif
+ #ifdef HAVE_NETINET_TCP_H
+ #include
+ #endif
#include "libpq/hba.h"
#include "libpq/pqcomm.h"
***************
*** 92,100 ****
--- 95,131 ----
char peer_cn[SM_USER + 1];
unsigned long count;
#endif
+
+ /*
+ * TCP keepalive settings;
+ * default values are 0 if AF_UNIX or not yet known;
+ * current values are 0 if AF_UNIX or using the default.
+ */
+ #ifdef TCP_KEEPIDLE
+ int default_keepalives_idle;
+ int keepalives_idle;
+ #endif
+ #ifdef TCP_KEEPINTVL
+ int default_keepalives_interval;
+ int keepalives_interval;
+ #endif
+ #ifdef TCP_KEEPCNT
+ int default_keepalives_count;
+ int keepalives_count;
+ #endif
} Port;
extern ProtocolVersion FrontendProtocol;
+ /* TCP keepalives configuration. These are no-ops on an AF_UNIX socket. */
+
+ extern int pq_getkeepalivesidle(Port *port);
+ extern int pq_getkeepalivesinterval(Port *port);
+ extern int pq_getkeepalivescount(Port *port);
+
+ extern int pq_setkeepalivesidle(int idle, Port *port);
+ extern int pq_setkeepalivesinterval(int interval, Port *port);
+ extern int pq_setkeepalivescount(int count, Port *port);
+
#endif /* LIBPQ_BE_H */
Index: src/include/utils/guc.h
===================================================================
RCS file: /projects/cvsroot/pgsql/src/include/utils/guc.h,v
retrieving revision 1.61
diff -u -c -r1.61 guc.h
*** src/include/utils/guc.h 26 Jun 2005 03:04:12 -0000 1.61
--- src/include/utils/guc.h 4 Jul 2005 10:41:33 -0000
***************
*** 134,139 ****
--- 134,142 ----
extern char *IdentFileName;
extern char *external_pid_file;
+ extern int tcp_keepalives_idle;
+ extern int tcp_keepalives_interval;
+ extern int tcp_keepalives_count;
extern void SetConfigOption(const char *name, const char *value,
GucContext context, GucSource source);