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71 commits

Author SHA1 Message Date
Sears Russell
c5a36c032d remove compensations.h (This is a big change, and impacts lots of whitespace. I have left some indentation breakage in place in order to minimize the size of the diff) 2011-06-12 08:13:34 +00:00
Sears Russell
47a587ff81 fix memory leak in bTree 2011-04-26 04:16:07 +00:00
Sears Russell
188b03152c fix blob recovery issue; pages were being initialized outside of tupdate, breaking recovery 2011-03-29 22:27:31 +00:00
Sears Russell
c4ebeb1285 add missing calls to various pthread destructors 2011-02-02 21:20:18 +00:00
Sears Russell
8ee684d98e add version of Tupdate that takes a Page* instead of a pageid 2010-10-19 21:07:24 +00:00
Sears Russell
dc1f799a37 TarrayListAlloc() and TarrayListExtend() now generate O(1) bytes of log entries; they use the new multipage operation type. 2010-05-11 23:34:13 +00:00
Sears Russell
820f706faf TarrayListExtend now zeros out the contents of the newly allocated records (this is implemented by having fixed.c zero out the records) 2010-05-11 23:27:22 +00:00
Sears Russell
887832582c expose stasis_handle_t up through the buffer manager; add sequential I/O hinting; fix stupid busy-wait in prefetch 2010-04-12 20:54:10 +00:00
Sears Russell
ff2f2e9e1e add TregionPrefetch() 2010-03-31 22:41:33 +00:00
Sears Russell
5ffd1110e9 Added concept of "transaction fingerprints" 
The region allocator marks freed regions "Condemned" before actually freeing them.  Condemned regions are associated 
with a transaction; before they can be reused / coalesced the transaction that condemned them must complete.

The region allocator used "TisActiveTransaction(xid)" to determine whether a given transaction had completed.  The 
problem is that Stasis now reuses transaction id's, and condemned regions were never reclaimed in practice.  A transaction
fingerprint is a unique identifier (currently transaction id, rec_lsn) that can be used to distinguish transactions that
did not execute concurrently.

I considered an alternative design based upon end-of-transaction actions.  This would have worked as well, but would 
have been a more invasive change.
 2010-02-18 19:12:46 +00:00
Sears Russell
4e100479d1 Add TarrayListDealloc() to arrayList. Remove one region allocation from each array list alloc. Add unit test for dealloc. 
Also, removed some old compensations cruft.
 2010-02-18 04:12:39 +00:00
Sears Russell
98e0cb1fab implement TregionSize(), add TregionForce() 2010-02-12 16:44:28 +00:00
Sears Russell
250223086c reordered includes for compatibility with gcc3 2010-01-21 00:03:17 +00:00
Sears Russell
1409a9eb27 more refactoring; log handles now manage their log entries memory 2009-12-31 23:01:37 +00:00
Sears Russell
7ff80f37ef add deferred, end of transaction callbacks. addresses issue 15 2009-12-15 06:30:37 +00:00
Sears Russell
c4e80b41b5 more include cleaning on alloc, begin cleaning of bufferHash 2009-08-22 21:29:27 +00:00
Sears Russell
1ce1496226 dependency cleanups; removed compenastions from alloc.c 2009-08-22 00:01:02 +00:00
Sears Russell
a6aa8ed942 added method to access dirtyPageTable 2009-08-05 20:02:33 +00:00
Sears Russell
c961b34903 forgot to commit b-tree source files 2009-07-29 21:04:08 +00:00
Sears Russell
4493dbb88b Added support for segment based recovery. For now, Stasis doesn't support hybrid recovery, so mixing page deallocation and segments will make recovery corrupt data / segfault. 2009-07-13 17:18:01 +00:00
Sears Russell
b66328192c in-memory group by implementation 2009-07-01 01:33:24 +00:00
Sears Russell
7db06197ca refactored truncation + dirty page table, fixed doxygen warnings. 2009-05-20 21:23:51 +00:00
Sears Russell
bc554efc85 renamed some functions to match naming convention 2009-05-08 06:53:30 +00:00
Sears Russell
651a1a22e5 more refactoring; removed static variables from pageHandle.c 2009-05-08 04:56:34 +00:00
Sears Russell
564dfe426b Renamed / refactored operation implementation + registration functions. Added support for third party operations 2009-03-31 05:02:54 +00:00
Sears Russell
83ad15b6d0 more benchmarks; transactions can now be multithreaded 2009-03-20 11:36:27 +00:00
Sears Russell
d413bb27f3 support for lsn-free writeback; partial benchmark code for submission 2009-03-19 03:36:13 +00:00
Sears Russell
b1f44ab005 added simplistic support for log reordering 2009-03-16 08:11:49 +00:00
Sears Russell
45a2410a25 add support for lsn-free set (but not alloc, etc...) 2009-03-15 07:21:37 +00:00
Sears Russell
1f336255f5 fix shutdown of empty rose trees 2008-12-05 20:52:39 +00:00
Sears Russell
32950b2b98 fixed memory leaks and pointer aliasing bugs in lsmTree_iterator. 2008-12-05 00:08:46 +00:00
Sears Russell
79d1512a5e fixed problem in lsm tree recovery; it was not updating the lsm tree header when passing C1 into C2's merger thread. Then C2 freed C1, and C1 pointed to uninitialized data. 2008-12-04 09:22:17 +00:00
Sears Russell
e4341e10b9 partially fixed rose recovery; clean shutdowns now work 2008-12-04 04:12:47 +00:00
Sears Russell
549f97d297 rewrote mergeThread, added ability to start iterators mid lsmTable 2008-11-26 07:14:23 +00:00
Sears Russell
b8624d09b1 obtain readlocks on lsm tree pages while iterating over them 2008-11-26 07:05:22 +00:00
Sears Russell
6a5e7f5589 Fix two problems in lsmTree: 
- rewrite lookup() to be simpler, and fixed a few bugs
 - was keeping node records around after pages were released
 2008-11-26 07:01:43 +00:00
Sears Russell
11082997d8 revert accidentally committed files 2008-11-24 23:43:26 +00:00
Sears Russell
a321ba6e4e handle null lsmIiterator_ gracefully 2008-11-24 23:41:11 +00:00
Sears Russell
2b63991014 preliminary (and largely untested) support for opening LSM-tree iterators starting at a given tuple 2008-11-24 01:32:35 +00:00
Sears Russell
e2f604175b move hash iterator code around, update documentation 2008-11-13 00:12:19 +00:00
Sears Russell
f5d1229941 Recovery now maintains XactionTable's state in the same way as forward operation. 
Internal transactional2.c state is now declared static.
 2008-11-13 00:06:35 +00:00
Sears Russell
eb6ade59e4 fix doxygen warning 2008-11-06 21:06:55 +00:00
Sears Russell
794edb07d5 updated documentation 2008-11-06 07:19:02 +00:00
Sears Russell
2c2c603dd2 all naive linear hash methods now start with TnaiveHash; removed references to ThashAlloc from documentation 2008-11-03 21:42:42 +00:00
Sears Russell
a639d461b8 fail a bit earlier on error 2008-10-27 23:32:45 +00:00
Sears Russell
a2a8c73cb5 prevent rose from initiating lots of small merges when the writer process is slow 2008-10-27 23:26:16 +00:00
Sears Russell
108d40ec16 fix warnings on 32-bit platforms 2008-10-09 19:00:17 +00:00
Sears Russell
132a567533 removed dead/unnecessary code; private methods are now static 2008-10-04 07:08:35 +00:00
Sears Russell
ef487c4dc8 remove btree stub files 2008-10-04 00:53:11 +00:00
Sears Russell
6354fe8a2f use pageid instead of int; Tupdate now takes a pageid instead of a recordid 2008-10-03 02:42:25 +00:00