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Clean up a number of autovacuum loose ends. Make the stats collector

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track shared relations in a separate hashtable, so that operations done
from different databases are counted correctly.  Add proper support for
anti-XID-wraparound vacuuming, even in databases that are never connected
to and so have no stats entries.  Miscellaneous other bug fixes.
Alvaro Herrera, some additional fixes by Tom Lane.
This commit is contained in:
Tom Lane
2005-07-29 19:30:09 +00:00
parent 507b758ad9
commit 5d5f1a79e6
13 changed files with 432 additions and 279 deletions
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11
src/backend/utils/init/postinit.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.153 2005/07/14 05:13:41 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/init/postinit.c,v 1.154 2005/07/29 19:30:05 tgl Exp $
*
*
*-------------------------------------------------------------------------
@ -78,6 +78,7 @@ FindMyDatabase(const char *name, Oid *db_id, Oid *db_tablespace)
char *filename;
FILE *db_file;
char thisname[NAMEDATALEN];
TransactionId frozenxid;
filename = database_getflatfilename();
db_file = AllocateFile(filename, "r");
@ -86,7 +87,8 @@ FindMyDatabase(const char *name, Oid *db_id, Oid *db_tablespace)
(errcode_for_file_access(),
errmsg("could not open file \"%s\": %m", filename)));
while (read_pg_database_line(db_file, thisname, db_id, db_tablespace))
while (read_pg_database_line(db_file, thisname, db_id,
db_tablespace, &frozenxid))
{
if (strcmp(thisname, name) == 0)
{
@ -170,10 +172,11 @@ ReverifyMyDatabase(const char *name)
/*
* Also check that the database is currently allowing connections.
* (We do not enforce this in standalone mode, however, so that there is
* a way to recover from "UPDATE pg_database SET datallowconn = false;")
* a way to recover from "UPDATE pg_database SET datallowconn = false;".
* We do not enforce it for the autovacuum process either.)
*/
dbform = (Form_pg_database) GETSTRUCT(tup);
if (IsUnderPostmaster && !dbform->datallowconn)
if (IsUnderPostmaster && !IsAutoVacuumProcess() && !dbform->datallowconn)
ereport(FATAL,
(errcode(ERRCODE_OBJECT_NOT_IN_PREREQUISITE_STATE),
errmsg("database \"%s\" is not currently accepting connections",