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* This trivial patch removes an unused variable. From Alvaro Herrera.Neil Conway2005-06-24
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* Add lock file contents printout to "can't happen" case to helpTom Lane2005-06-20
| | | | investigate buildfarm failures.
* Two-phase commit. Original patch by Heikki Linnakangas, with additionalTom Lane2005-06-17
| | | | hacking by Alvaro Herrera and Tom Lane.
* Mention ipcrm and ipcclean in error message.Bruce Momjian2005-06-07
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* Ipcrm -> ipcclean in error message:Bruce Momjian2005-06-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | --------------------------------------------------------------------------- While playing around, I got the following error message: -- FATAL: pre-existing shared memory block (key 5432001, ID 90898435) is still in use HINT: If you're sure there are no old server processes still running, remove the shared memory block with the command "ipcrm", or just delete the file "/home/hlinnaka/pgsql/data/postmaster.pid". --- Thats normal because I used "kill -9 postmaster" to shut down. The hint advises me to use "ipcrm", but there's the "ipcclean" script in bin for just this purpose. The hint should probably advise to use ipcclean. The attached patch replaces all occurances of "ipcrm" with "ipcclean" in src/backend/utils/init/miscinit.c and all the translations in src/backend/po. While reviewing the patch, I noticed a likely typo in hr.po. While I don't speak Croatian, the translation seems to advise to use the "icpm(1)" command. I changed that to "ipcclean" too. Heikki Linnakangas
* Remove the mostly-stubbed-out-anyway support routines for WAL UNDO.Tom Lane2005-06-06
| | | | | | That code is never going to be used in the foreseeable future, and where it's more than a stub it's making the redo routines harder to read.
* Split the shared-memory array of PGPROC pointers out of the sinvalTom Lane2005-05-19
| | | | | | communication structure, and make it its own module with its own lock. This should reduce contention at least a little, and it definitely makes the code seem cleaner. Per my recent proposal.
* Back out check for unreferenced files.Bruce Momjian2005-05-10
| | | | Heikki Linnakangas
* Fix bogus hashtable setup. (This code has quite a few other problemsTom Lane2005-05-05
| | | | too, but that one is in my way at the moment.)
* Make standalone backends ignore pg_database.datallowconn, so that thereTom Lane2005-05-05
| | | | is a way to recover from disabling connections to all databases at once.
* Check the file system on postmaster startup and report any unreferencedBruce Momjian2005-05-02
| | | | | | files in the server log. Heikki Linnakangas
* Completion of project to use fixed OIDs for all system catalogs andTom Lane2005-04-14
| | | | | | | indexes. Replace all heap_openr and index_openr calls by heap_open and index_open. Remove runtime lookups of catalog OID numbers in various places. Remove relcache's support for looking up system catalogs by name. Bulky but mostly very boring patch ...
* First phase of project to use fixed OIDs for all system catalogs andTom Lane2005-04-14
| | | | | | | | | | | | | | | | indexes. Extend the macros in include/catalog/*.h to carry the info about hand-assigned OIDs, and adjust the genbki script and bootstrap code to make the relations actually get those OIDs. Remove the small number of RelOid_pg_foo macros that we had in favor of a complete set named like the catname.h and indexing.h macros. Next phase will get rid of internal use of names for looking up catalogs and indexes; but this completes the changes forcing an initdb, so it looks like a good place to commit. Along the way, I made the shared relations (pg_database etc) not be 'bootstrap' relations any more, so as to reduce the number of hardwired entries and simplify changing those relations in future. I'm not sure whether they ever really needed to be handled as bootstrap relations, but it seems to work fine to not do so now.
* Add temp_buffers GUC variable to allow users to determine the sizeTom Lane2005-03-19
| | | | of the local buffer arena for temporary table access.
* Need to reset local buffer pin counts, not only shared buffer pins,Tom Lane2005-03-18
| | | | before we attempt any file deletions in ShutdownPostgres. Per Tatsuo.
* Need to release buffer pins before attempting to drop files duringTom Lane2005-03-18
| | | | backend exit. Per report from Bruce.
* Treat EPERM as a non-error case when checking to see if old postmasterTom Lane2005-03-18
| | | | | | | | | is still alive. This improves our odds of not getting fooled by an unrelated process when checking a stale lock file. Other checks already in place, plus one newly added in checkDataDir(), ensure that we cannot attempt to usurp the place of a postmaster belonging to a different userid, so there is no need to error out. Add comments indicating the importance of these other checks.
* Finish up the flat-files project: get rid of GetRawDatabaseInfo() hackTom Lane2005-02-26
| | | | | | | | | | | in favor of looking at the flat file copy of pg_database during backend startup. This should finally eliminate the various corner cases in which backend startup fails unexpectedly because it isn't able to distinguish live and dead tuples in pg_database. Simplify locking on pg_database to be similar to the rules used with pg_shadow and pg_group, and eliminate FlushRelationBuffers operations that were used only to reduce the odds of failure of GetRawDatabaseInfo. initdb forced due to addition of a trigger to pg_database.
* Use SnapshotNow instead of SnapshotSelf for reading the catalogsTom Lane2005-02-20
| | | | | | | | during flat-file writing. The only difference is that SnapshotSelf would consider tuples of the 'current command' within the current transaction as valid, where SnapshotNow wouldn't. We can eliminate the need for this with one extra CommandCounterIncrement call before we start reading the catalogs.
* Remove some no-longer-needed kluges for bootstrapping, in particularTom Lane2005-02-20
| | | | | | | | the AMI_OVERRIDE flag. The fact that TransactionLogFetch treats BootstrapTransactionId as always committed is sufficient to make bootstrap work, and getting rid of extra tests in heavily used code paths seems like a win. The files produced by initdb are demonstrably the same after this change.
* Flat file cleanup phase 2: make it work for pg_group. The flat groupTom Lane2005-02-20
| | | | | | | | | | | file now identifies group members by usesysid not name; this avoids needing to depend on SearchSysCache which we can't use during startup. (The old representation was entirely broken anyway, since we did not regenerate the file following RENAME USER.) It's only a 95% solution because if the group membership list is big enough to be toasted out of line, we cannot read it during startup. I think this will do for the moment, until we have time to implement the planned pg_role replacement for pg_group.
* Add code to prevent transaction ID wraparound by enforcing a safe limitTom Lane2005-02-20
| | | | | | | | | | | | | | in GetNewTransactionId(). Since the limit value has to be computed before we run any real transactions, this requires adding code to database startup to scan pg_database and determine the oldest datfrozenxid. This can conveniently be combined with the first stage of an attack on the problem that the 'flat file' copies of pg_shadow and pg_group are not properly updated during WAL recovery. The code I've added to startup resides in a new file src/backend/utils/init/flatfiles.c, and it is responsible for rewriting the flat files as well as initializing the XID wraparound limit value. This will eventually allow us to get rid of GetRawDatabaseInfo too, but we'll need an initdb so we can add a trigger to pg_database.
* Tag appropriate files for rc3PostgreSQL Daemon2004-12-31
| | | | | | | | Also performed an initial run through of upgrading our Copyright date to extend to 2005 ... first run here was very simple ... change everything where: grep 1996-2004 && the word 'Copyright' ... scanned through the generated list with 'less' first, and after, to make sure that I only picked up the right entries ...
* Fix func_ptr declaration for netbsd-mac68k, per Rémi Zara.Tom Lane2004-12-26
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* Remove GUC USERLIMIT variable category, making the affected variablesTom Lane2004-11-14
| | | | | | | plain SUSET instead. Also delay processing of options received in client connection request until after we know if the user is a superuser, so that SUSET values can be set that way by legitimate superusers. Per recent discussion.
* Adjust configuration-files GUC behavior as per my recent proposal.Tom Lane2004-10-09
| | | | | | | | The vars are renamed to data_directory, config_file, hba_file, and ident_file, and are guaranteed to be set to accurate absolute paths during postmaster startup. This commit does not yet do anything about hiding path values from non-superusers.
* Suppress getppid test on WIN32, per Dave Page.Tom Lane2004-10-04
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* Adjust postmaster to recognize that a lockfile containing its parent's PIDTom Lane2004-10-01
| | | | | | | | must be stale. Tweak example startup scripts to not use pg_ctl but launch the postmaster directly, thereby ensuring that only the postmaster's direct parent shell will be a postgres-owned process. In combination these should fix the longstanding problem of the postmaster sometimes refusing to start during reboot because it thinks the old lockfile is not stale.
* Pgindent run for 8.0.Bruce Momjian2004-08-29
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* Update copyright to 2004.Bruce Momjian2004-08-29
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* Rename vacuum_cost_naptime to vacuum_cost_delay, with agreement from Jan.Bruce Momjian2004-08-06
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* Some mop-up work for savepoints (nested transactions). Store a smallTom Lane2004-08-01
| | | | | | | | | | | | number of active subtransaction XIDs in each backend's PGPROC entry, and use this to avoid expensive probes into pg_subtrans during TransactionIdIsInProgress. Extend EOXactCallback API to allow add-on modules to get control at subxact start/end. (This is deliberately not compatible with the former API, since any uses of that API probably need manual review anyway.) Add basic reference documentation for SAVEPOINT and related commands. Minor other cleanups to check off some of the open issues for subtransactions. Alvaro Herrera and Tom Lane.
* Canonicalize preload_libraries after it is split up, not before.Bruce Momjian2004-07-12
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* Cleanup for canonicalization fixes, from Tom.Bruce Momjian2004-07-11
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* Nested transactions. There is still much left to do, especially on theTom Lane2004-07-01
| | | | | | | performance front, but with feature freeze upon us I think it's time to drive a stake in the ground and say that this will be in 7.5. Alvaro Herrera, with some help from Tom Lane.
* Tablespaces. Alternate database locations are dead, long live tablespaces.Tom Lane2004-06-18
| | | | | | | | | There are various things left to do: contrib dbsize and oid2name modules need work, and so does the documentation. Also someone should think about COMMENT ON TABLESPACE and maybe RENAME TABLESPACE. Also initlocation is dead, it just doesn't know it yet. Gavin Sherry and Tom Lane.
* Use the new List API function names throughout the backend, and disable theNeil Conway2004-05-30
| | | | | list compatibility API by default. While doing this, I decided to keep the llast() macro around and introduce llast_int() and llast_oid() variants.
* Paranoia: ensure MyBackendId is InvalidBackendId in a process that hasTom Lane2004-05-30
| | | | never executed SIBackendInit().
* Separate out bgwriter code into a logically separate module, ratherTom Lane2004-05-29
| | | | | | | | | than being random pieces of other files. Give bgwriter responsibility for all checkpoint activity (other than a post-recovery checkpoint); so this child process absorbs the functionality of the former transient checkpoint and shutdown subprocesses. While at it, create an actual include file for postmaster.c, which for some reason never had its own file before.
* Code review for EXEC_BACKEND changes. Reduce the number of #ifdefs byTom Lane2004-05-28
| | | | | | | | | | | about a third, make it work on non-Windows platforms again. (But perhaps I broke the WIN32 code, since I have no way to test that.) Fold all the paths that fork postmaster child processes to go through the single routine SubPostmasterMain, which takes care of resurrecting the state that would normally be inherited from the postmaster (including GUC variables). Clean up some places where there's no particularly good reason for the EXEC and non-EXEC cases to work differently. Take care of one or two FIXMEs that remained in the code.
* Get rid of the former rather baroque mechanism for propagating the valuesTom Lane2004-05-27
| | | | | | | | | | of ThisStartUpID and RedoRecPtr into new backends. It's a lot easier just to make them all grab the values out of shared memory during startup. This helps to decouple the postmaster from checkpoint execution, which I need since I'm intending to let the bgwriter do it instead, and it also fixes a bug in the Win32 port: ThisStartUpID wasn't getting propagated at all AFAICS. (Doesn't give me a lot of faith in the amount of testing that port has gotten.)
* Reimplement the linked list data structure used throughout the backend.Neil Conway2004-05-26
| | | | | | | | | | | | | | | | In the past, we used a 'Lispy' linked list implementation: a "list" was merely a pointer to the head node of the list. The problem with that design is that it makes lappend() and length() linear time. This patch fixes that problem (and others) by maintaining a count of the list length and a pointer to the tail node along with each head node pointer. A "list" is now a pointer to a structure containing some meta-data about the list; the head and tail pointers in that structure refer to ListCell structures that maintain the actual linked list of nodes. The function names of the list API have also been changed to, I hope, be more logically consistent. By default, the old function names are still available; they will be disabled-by-default once the rest of the tree has been updated to use the new API names.
* Clean up some relative path install issues with Claudio's help.Bruce Momjian2004-05-18
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* Reorganize code to allow path-relative installs.Bruce Momjian2004-05-17
| | | | | | | Create new get_* functions to access compiled-in paths and adjust if relative installs are to be used. Clean up substitute_libpath_macro() code.
* Reorganize backend code to more cleanly manage executable names andBruce Momjian2004-05-13
| | | | backend startup.
* As part of the work for making relocatable installs, I have re-factoredBruce Momjian2004-05-11
| | | | | | | | | | | | all the code that looks for other binaries. I move FindExec into port/exec.c (and renamed it to find_my_binary()). I also added find_other_binary that looks for another binary in the same directory as the calling program, and checks the version string. The only behavior change was that initdb and pg_dump would look in the hard-coded bindir directory if it can't find the requested binary in the same directory as the caller. The new code throws an error. The old behavior seemed too error prone for version mismatches.
* * Most changes are to fix warnings issued when compiling win32Bruce Momjian2004-04-19
| | | | | | | | | | | | | | | | | | | | | * removed a few redundant defines * get_user_name safe under win32 * rationalized pipe read EOF for win32 (UPDATED PATCH USED) * changed all backend instances of sleep() to pg_usleep - except for the SLEEP_ON_ASSERT in assert.c, as it would exceed a 32-bit long [Note to patcher: If a SLEEP_ON_ASSERT of 2000 seconds is acceptable, please replace with pg_usleep(2000000000L)] I added a comment to that part of the code: /* * It would be nice to use pg_usleep() here, but only does 2000 sec * or 33 minutes, which seems too short. */ sleep(1000000); Claudio Natoli
* * postmaster.c: cleanup pmdaemonize under win32; missed failure messageBruce Momjian2004-03-15
| | | | | | | | | in CreateOptsFile * s_lock.c: minor comment fix * findbe.c: variables not used under win32 moved within #ifndef WIN32 case Claudio Natoli
* Centralize implementation of delay code by creating a pg_usleep()Tom Lane2004-02-10
| | | | | | | | | subroutine in src/port/pgsleep.c. Remove platform dependencies from miscadmin.h and put them in port.h where they belong. Extend recent vacuum cost-based-delay patch to apply to VACUUM FULL, ANALYZE, and non-btree index vacuuming. By the way, where is the documentation for the cost-based-delay patch?
* Restructure smgr API as per recent proposal. smgr no longer depends onTom Lane2004-02-10
| | | | | | | | | the relcache, and so the notion of 'blind write' is gone. This should improve efficiency in bgwriter and background checkpoint processes. Internal restructuring in md.c to remove the not-very-useful array of MdfdVec objects --- might as well just use pointers. Also remove the long-dead 'persistent main memory' storage manager (mm.c), since it seems quite unlikely to ever get resurrected.
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