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146 commits

Author SHA1 Message Date
Gregory Burd
7d0ad2dce1 Update the version strings and a few config values which changed names. 2013-10-02 14:42:26 -04:00
Gregory Burd
84a85bbe38 Open a *statistics* cursor when gathering statistics. 2013-10-02 14:41:36 -04:00
Gregory Burd
c60fa22422 Retry three times, then bail out and return not found. 2013-09-04 13:12:37 -04:00
Gregory Burd
48419ce4d0 Start the penalty after queues are 25% full because a) that makes sense, and b) 
that avoids some odd badarith errors when PctBusy is very small.
 2013-08-21 14:19:52 -04:00
Gregory Burd
1bf66ae960 Every enqueued request now includes a hint as to how much work is pending in 
the lower C-code.  We use that to scale the reduction count penalty so that we
can (hopefully) signal to the Erlang scheduler enough information for it to
properly throttle work.  'eagain' should only happen when queues are full, we
have no choice but to keep this calling proc busy in a recursive loop trying
the request over and over if we're going to preserve request ordering.
 2013-08-21 12:15:34 -04:00
Gregory Burd
e67da86a9b Change backpressure method from EAGAIN to bump_reductions so as not to block Riak/KV vnode processes when queues backup. 2013-08-19 13:32:58 -04:00
Gregory Burd
2047104cda Remove the sleep from async_nif's EAGAIN path because it doesn't seem to have a positive effect. 2013-08-19 12:20:36 -04:00
Gregory Burd
96d43d5d17 Re-use the unchanging value of 'Args' rather than including it in every recursive call. 2013-08-02 14:22:30 -04:00
Gregory Burd
05c8c615ef I think the make_ref() needs to be within the fun()'s context to trigger selective receive optimization in the beam's runtime. 2013-08-01 10:02:21 -04:00
Gregory Burd
f153509409 With some input from Jon I've managed to reduce this back into a macro rather than a fun and a macro calling a fun. He also suggested that on eagain I sleep a small amount of time so as to allow other work to catch up a bit. 2013-07-31 15:39:55 -04:00
Gregory Burd
c9a4ab8325 Revert changes to async_nif and re-enable stats. Fixed selective recv. 2013-07-31 09:41:36 -04:00
Gregory Burd
2393257bef Really disable stats. 2013-07-30 14:34:04 -04:00
Gregory Burd
211ffd884c Ignore requests for stats for right now. 2013-07-30 14:30:04 -04:00
Gregory Burd
56c2ac27c2 Revert to a macro-only, non-recursive on eagain method for managing requests. 2013-07-30 13:27:13 -04:00
Gregory Burd
27dba903ef The ref needs to be in-scope of the recieve for it to be optimized. 2013-07-30 13:20:49 -04:00
Gregory Burd
452d7694a6 Added some sanity checking of key/value sizes. Check for EAGAIN/INVAL/NOMEM when starting worker threads. Switch back to the 1.6.3 release branch of WT. 2013-07-26 10:27:21 -04:00
Gregory Burd
122963133a Seems logging isn't a valid config value anymore, so remove it. 2013-07-18 13:26:53 -04:00
Gregory Burd
c3d3d39c36 Remove default setting from configuration. 2013-07-15 12:36:28 -04:00
Gregory Burd
420b658e27 Really fix the lower bound for session handles (session_max) to 1024 (upper bound is 8192). 2013-07-08 19:59:00 -04:00
Gregory Burd
fea52c4ec3 Change lower bound for session handles (session_max) to 1024 (upper bound is 8192). 2013-07-08 19:45:45 -04:00
Gregory Burd
ac835f7617 Reduce precision of bloom filters to something more reasonable to avoid having very large bloom filters in cache. Reduce leaf pages to a more reasonable default. Given all data in Riak is <<Bucket, Key>> enable prefix_compression to hopefully reduce key overhead. 2013-07-08 13:49:44 -04:00
Gregory Burd
00e5889ac9 Changed conditions for worker thread creation. 2013-07-02 16:46:04 -04:00
Gregory Burd
c7b45a7c2b Still ironing out stats. 2013-06-27 10:57:41 -04:00
Gregory Burd
060abffcff Minor oversight, fixed. 2013-06-19 14:42:56 -04:00
Gregory Burd
0f180a6531 Fixed a few mistakes. 2013-06-19 14:37:30 -04:00
Gregory Burd
450299dc2d Comment out a test that's not yet working. 2013-06-18 16:40:43 -04:00
Gregory Burd
4ae8ffb4cd Update debugging messages a bit. Fix a bug in the signature function. 2013-06-18 13:49:25 -04:00
Gregory Burd
50e24d0f48 Add a longer, multi-table test. Use a release version of WiredTiger from now on. 2013-06-18 09:21:58 -04:00
Gregory Burd
53307e8c01 A great deal of cleanup. EUnit and EQC tests pass. 2013-06-14 16:57:53 -04:00
Gregory Burd
2a4b8ee7d2 WIP: simplify the cache from hash-of-lists to list; use a CAS() operation to protect the most-recently-used (mru) list. 2013-06-10 14:31:59 -04:00
Gregory Burd
0fef28de92 WIP: basho_bench tests are running fine now, need more work to ensure cache is functioning properly. 2013-06-05 11:41:41 -04:00
Gregory Burd
778ba20352 WIP: a bit of cleanup fixes a few mistakes 2013-06-04 17:21:50 -04:00
Gregory Burd
f1b7d8322d WIP: replcae the kbtree with khash, we don't need the tree features (yet, if ever) and hash is faster; add a most-recently-used stash for contexts as it's highly likely that worker threads will do many operations with the same shape/signature of session/cursors/tables/config and that path can be lock-free as well making it much faster (one would hope); somewhere something is stepping on read-only ErlNifBinary data and so a crc check is failing and causing the runtime to abort, that's the latest item to find/fix. 2013-06-04 14:45:23 -04:00
Gregory Burd
b002294c4e WIP: all tests (but drop) passing again, need to fix that and valgrind next. 2013-05-31 20:32:02 -04:00
Gregory Burd
9468870e1f WIP: use a log2 histogram to track how long items live in the cache, evict items which have been in cache greater than the mean time. 2013-05-30 17:10:51 -04:00
Gregory Burd
a2cd1d562c WIP: devising a better way to cache/reuse session/cursor pairs. 2013-05-28 16:14:19 -04:00
Gregory Burd
013251e6d9 Update WiredTiger statistics less frequently and fix a build script 
mistake preventing checking out by branch name.
 2013-05-14 13:51:44 -04:00
Gregory Burd
0bde789af5 Tune the LSM a bit based on testing, increase the chunk size and add more merge 
worker threads into the mix.
 2013-05-01 07:06:13 -04:00
Gregory Burd
f1cb6f8c61 Remove support for bzip2. Change build_deps.sh to only remove the 
build files from wiredtiger when cleaning rather than all the files.
 2013-04-26 10:34:57 -04:00
Gregory Burd
422dcfda89 Return 'eagain' when request queue is full and then try the request again. 
In the worst case is the request queue remains full and we loop between
the NIF and Erlang forever trying over and over to enqueue the request. If
that happens we shouldn't take schedulers offline as the NIF calls are fast
and we shouldn't run out of memory as that is bounded.  CPU will show a lot
of activity, but progress will continue in Erlang.
 2013-04-25 15:18:23 -04:00
Gregory Burd
35e36d1cae Whitespace 2013-04-24 14:28:24 -04:00
Gregory Burd
54c5158490 Merge pull request #7 from basho-labs/gsb-event-handlers 
Deliver WiredTiger event notifications (messages, errors, progress) into Erlang for logging
 2013-04-23 12:02:22 -07:00
Gregory Burd
35de23c0f3 Include the gen_server module that will log events using lager. 2013-04-23 08:22:48 -04:00
Gregory Burd
6f58faaba2 Turn on some of the verbose options, but leave most off. 2013-04-22 20:55:45 -04:00
Gregory Burd
fc59ae3f90 WIP: Finished transitioning to a gen_server and a few other tasks. This works 
except that when trying to enif_send a bunch of messages eventually one causes
a segv just after reporting: size_object: bad tag for 0x80
 2013-04-22 17:45:48 -04:00
Gregory Burd
652771003e WIP: a good start, I need to switch over wterl_event_handler to be a 
gen_server and I need to add a way to set the pid of the message handler
process to the NIF API.
 2013-04-22 09:52:21 -04:00
Gregory Burd
6c74c825e4 Avoid calling a process that may have already exited. 2013-04-20 13:30:09 -04:00
Gregory Burd
48141346f0 Remove redundant wt from filenames. 2013-04-20 12:49:14 -04:00
Gregory Burd
a1459ce607 It's statistics:<your table name here> not table:statistics (oops). 2013-04-20 12:33:36 -04:00
Gregory Burd
b69f35364b Use the less onerous version of statistics. 2013-04-20 12:27:42 -04:00