61 Commits (d1af2694e52f8945992fea7de2c3d40279fb55b0)

Author	SHA1	Message	Date
Heikki Linnakangas	15c121b3ed	Rewrite the FSM. Instead of relying on a fixed-size shared memory segment, the ... free space information is stored in a dedicated FSM relation fork, with each relation (except for hash indexes; they don't use FSM). This eliminates the max_fsm_relations and max_fsm_pages GUC options; remove any trace of them from the backend, initdb, and documentation. Rewrite contrib/pg_freespacemap to match the new FSM implementation. Also introduce a new variant of the get_raw_page(regclass, int4, int4) function in contrib/pageinspect that let's you to return pages from any relation fork, and a new fsm_page_contents() function to inspect the new FSM pages.	17 years ago
Tom Lane	3fcc7e8e18	Reduce memory consumption during VACUUM of large relations, by using ... FSMPageData (6 bytes) instead of PageFreeSpaceInfo (8 or 16 bytes) for the temporary array of page-free-space information. Itagaki Takahiro	18 years ago
Bruce Momjian	9098ab9e32	Update copyrights in source tree to 2008.	18 years ago
Bruce Momjian	29dccf5fe0	Update CVS HEAD for 2007 copyright. Back branches are typically not ... back-stamped for this.	19 years ago
Peter Eisentraut	409600942b	KB -> kB	19 years ago
Bruce Momjian	f99a569a2e	pgindent run for 8.2.	19 years ago
Tom Lane	9e936693a9	Fix free space map to correctly track the total amount of FSM space needed ... even when a single relation requires more than max_fsm_pages pages. Also, make VACUUM emit a warning in this case, since it likely means that VACUUM FULL or other drastic corrective measure is needed. Per reports from Jeff Frost and others of unexpected changes in the claimed max_fsm_pages need.	19 years ago
Bruce Momjian	e0522505bd	Remove 576 references of include files that were not needed.	19 years ago
Tom Lane	ae643747b1	Fix a passel of recently-committed violations of the rule 'thou shalt ... have no other gods before c.h'. Also remove some demonstrably redundant #include lines, mostly of <errno.h> which was added to c.h years ago.	19 years ago
Bruce Momjian	f2f5b05655	Update copyright for 2006. Update scripts.	20 years ago
Bruce Momjian	d5dd3d451e	Add contrib/pg_freespacemap to display free space map information. ... Mark Kirkwood	20 years ago
Peter Eisentraut	07bb9f086b	Message corrections	20 years ago
Bruce Momjian	1dc3498251	Standard pgindent run for 8.1.	20 years ago
Tom Lane	0007490e09	Convert the arithmetic for shared memory size calculation from 'int' ... to 'Size' (that is, size_t), and install overflow detection checks in it. This allows us to remove the former arbitrary restrictions on NBuffers etc. It won't make any difference in a 32-bit machine, but in a 64-bit machine you could theoretically have terabytes of shared buffers. (How efficiently we could manage 'em remains to be seen.) Similarly, num_temp_buffers, work_mem, and maintenance_work_mem can be set above 2Gb on a 64-bit machine. Original patch from Koichi Suzuki, additional work by moi.	20 years ago
Bruce Momjian	28d0515d18	Fix FSM warning to mention increasing max_fsm_pages. Was incorrectly ... max_fsm_relations.	20 years ago
Tom Lane	eb5949d190	Arrange for the postmaster (and standalone backends, initdb, etc) to ... chdir into PGDATA and subsequently use relative paths instead of absolute paths to access all files under PGDATA. This seems to give a small performance improvement, and it should make the system more robust against naive DBAs doing things like moving a database directory that has a live postmaster in it. Per recent discussion.	20 years ago
Tom Lane	e92a88272e	Modify hash_search() API to prevent future occurrences of the error ... spotted by Qingqing Zhou. The HASH_ENTER action now automatically fails with elog(ERROR) on out-of-memory --- which incidentally lets us eliminate duplicate error checks in quite a bunch of places. If you really need the old return-NULL-on-out-of-memory behavior, you can ask for HASH_ENTER_NULL. But there is now an Assert in that path checking that you aren't hoping to get that behavior in a palloc-based hash table. Along the way, remove the old HASH_FIND_SAVE/HASH_REMOVE_SAVED actions, which were not being used anywhere anymore, and were surely too ugly and unsafe to want to see revived again.	21 years ago
Bruce Momjian	3b0a5e50d7	Update VACUUM VERBOSE FSM message, per Tom.	21 years ago
Bruce Momjian	714d5a4c37	Update VACUUM VERBOSE update, per Alvaro.	21 years ago
Bruce Momjian	9ba6587f8b	Update working of VACUUM VERBOSE.	21 years ago
Bruce Momjian	52e08c35f7	Make VACUUM VERBOSE FSM output all output in a single INFO output ... statement.	21 years ago
Bruce Momjian	e947e1153a	Modify output of VACUUM VERBOSE to be clearer.	21 years ago
Bruce Momjian	2c4dea126a	Issue free space notices to both the user and the server log file.	21 years ago
Bruce Momjian	45905425a0	Add warning about the need to increase "max_fsm_relations" and ... "max_fsm_relations" for vacuums. Also improve VACUUM VERBOSE final message text. Ron Mayer	21 years ago
PostgreSQL Daemon	2ff501590b	Tag appropriate files for rc3 ...	21 years ago
Tom Lane	0fb3152ea9	Minor adjustments to improve the accuracy of our computation of required ... shared memory size.	21 years ago
Tom Lane	3a246cc285	Arrange to preallocate all required space for the buffer and FSM hash ... tables in shared memory. This ensures that overflow of the lock table creates no long-lasting problems. Per discussion with Merlin Moncure.	21 years ago
Bruce Momjian	b6b71b85bc	Pgindent run for 8.0.	21 years ago
Bruce Momjian	da9a8649d8	Update copyright to 2004.	21 years ago
Tom Lane	2467394ee1	Tablespaces. Alternate database locations are dead, long live tablespaces. ... 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.	22 years ago
Tom Lane	c3a153afed	Tweak palloc/repalloc to allow zero bytes to be requested, as per recent ... proposal. Eliminate several dozen now-unnecessary hacks to avoid palloc(0). (It's likely there are more that I didn't find.)	22 years ago
Tom Lane	c77f363384	Ensure that close() and fclose() are checked for errors, at least in ... cases involving writes. Per recent discussion about the possibility of close-time failures on some filesystems. There is a TODO item for this, too.	22 years ago
Bruce Momjian	4cdf51e646	Drops in the CreateProcess calls for Win32 (essentially wrapping up the ... fork/exec portion of the port), and fixes a handful of whitespace issues Claudio Natoli	22 years ago
Bruce Momjian	d75b2ec4eb	This patch is the next step towards (re)allowing fork/exec. ... Claudio Natoli	22 years ago
Peter Eisentraut	2afacfc403	This patch properly sets the prototype for the on_shmem_exit and ... on_proc_exit functions, and adjust all other related code to use the proper types too. by Kurt Roeckx	22 years ago
PostgreSQL Daemon	969685ad44	$Header: -> $PostgreSQL Changes ...	22 years ago
Tom Lane	9ea738827c	Second try at fixing no-room-to-move-down PANIC in compact_fsm_storage. ... Ward's report that it can still happen in RC2 forces me to realize that this is not a can't-happen condition after all, and that the compaction code had better cope rather than panicking.	22 years ago
Tom Lane	abec4cbf1f	compact_fsm_storage() does need to handle the case where a relation's ... FSM data has to be both moved down and compressed. Per report from Dror Matalon.	22 years ago
Peter Eisentraut	7438af96fa	More message editing, some suggested by Alvaro Herrera	22 years ago
Peter Eisentraut	feb4f44d29	Message editing: remove gratuitous variations in message wording, standardize ... terms, add some clarifications, fix some untranslatable attempts at dynamic message building.	22 years ago
Bruce Momjian	46785776c4	Another pgindent run with updated typedefs.	22 years ago
Bruce Momjian	f3c3deb7d0	Update copyrights to 2003.	22 years ago
Bruce Momjian	089003fb46	pgindent run.	22 years ago
Tom Lane	cfa191f3b8	Error message editing in backend/storage.	22 years ago
Tom Lane	4b6c198a6a	Add code to dump contents of free space map into $PGDATA/global/pg_fsm.cache ... at database shutdown, and then load it again at database startup. This preserves our hard-won knowledge of free space across restarts (given an orderly shutdown, that is).	23 years ago
Tom Lane	391eb5e5b6	Reimplement free-space-map management as per recent discussions. ... Adjustable threshold is gone in favor of keeping track of total requested page storage and doling out proportional fractions to each relation (with a minimum amount per relation, and some quantization of the results to avoid thrashing with small changes in page counts). Provide special- case code for indexes so as not to waste space storing useless page free space counts. Restructure internal data storage to be a flat array instead of list-of-chunks; this may cost a little more work in data copying when reorganizing, but allows binary search to be used during lookup_fsm_page_entry().	23 years ago
Tom Lane	88dc31e3f2	First cut at recycling space in btree indexes. Still some rough edges ... to fix, but it seems to basically work...	23 years ago
Tom Lane	b2735fcd52	Performance improvement for MultiRecordFreeSpace on large relations --- ... avoid O(N^2) behavior. Problem noted and fixed by Stephen Marshall <smarshall@wsicorp.com>, with some help from Tom Lane.	23 years ago
Bruce Momjian	e50f52a074	pgindent run.	23 years ago
Bruce Momjian	d84fe82230	Update copyright to 2002.	24 years ago