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Author SHA1 Message Date
martinsumner
36a48c16e5 Add timing log to position scan 
Position scan may be very expensive, add timing log to confirm
 2017-05-19 13:59:57 +01:00
martinsumner
18a12ff9ff Improve comments 2017-05-18 14:09:45 +01:00
martinsumner
43bfbe3e0e Add in scheduler function 
To assist in scheduling compaction
 2017-03-30 15:46:37 +01:00
martinsumner
11ff3129f3 Reduce compaction targets 
Cmpaction is overly aggressive.  It is a lot of work to compact a run of
files for just 20% reduction in disk space, when disk space for the
Journal (i.e. low IOPS disk space should be relatively inexpensive).
Require at least a 40% reduction for a compaction job.
 2017-03-30 12:15:36 +01:00
Martin Sumner
512af7f41a Missing space 2017-03-24 16:11:20 +00:00
Martin Sumner
1335b11d82 Merge pull request #55 from martinsumner/mas-docs2i 
Mas docs2i
 2017-03-24 16:09:17 +00:00
martinsumner
f838ffda2c Typo 2017-03-24 15:41:33 +00:00
martinsumner
6de9740bda Typo 2017-03-24 15:31:19 +00:00
Martin Sumner
eeae245442 Merge pull request #54 from martinsumner/mas-sstfiveblocks 
Mas sstfiveblocks
 2017-03-24 15:27:09 +00:00
martinsumner
5e1482d71b 2i query test results 
Write-up of 2i query test results
 2017-03-24 15:20:03 +00:00
Martin Sumner
8db73917fb Need also to remove unused bits 2017-03-22 00:14:37 +00:00
Martin Sumner
15af4942ae Remove busy log 
Accounts for 60% of logs
 2017-03-22 00:11:17 +00:00
martinsumner
97312e1356 Test to reflect vclock not binary 2017-03-21 18:28:28 +00:00
martinsumner
e59585d733 Merge remote-tracking branch 'refs/remotes/origin/mas-etsmem-i52' into mas-sstfiveblocks 2017-03-21 18:25:18 +00:00
martinsumner
eef2199335 Up level for yield to 2 2017-03-21 18:24:11 +00:00
martinsumner
f108871691 Vclock metadata change 
Test performance ocntinues to be worse since the vlock metadata change.
Reversing out juts in case.
 2017-03-21 18:15:56 +00:00
martinsumner
756b46bb4d Return to merge scan width of 16 
This was reduced before the use of binary blocks was committed
 2017-03-21 17:53:34 +00:00
martinsumner
1fdcdf3b37 Midblock size - lookup 
No real reason for the midblock to be smaller in lookup slots - so give
the blocks a more consistent size
 2017-03-21 17:47:08 +00:00
martinsumner
64e944d9ba Change to 5 blocks in SST Slot 
Change to 5 blocks is intended to make the blocks in lookup slots
fractionally smaller, but more importantly to introduce a middle block
that cna be opened in a binary-split style fashion to reduce the number
of blocks that need to be opened for range queries.   Worst case for
full slots is 3 blocks now not 4.
 2017-03-21 16:54:23 +00:00
martinsumner
682dfc4d59 Revert "Revert "ETS - delete table not objects"" 
This reverts commit c46377584f.
 2017-03-21 12:02:22 +00:00
martinsumner
dd0316eedf Yield on query selectively 
Still not clear if yielding is the cause of memory problems, but taking
it away universally has impacted throughput.  At the very least we
should continue to yield on high-contention files (those at higher
levels), where the processes are more likely to be quickly terminated
anyway allowing GC to be invoked.
 2017-03-21 11:03:29 +00:00
martinsumner
c46377584f Revert "ETS - delete table not objects" 
This reverts commit 7dc4913d5a.
 2017-03-21 01:32:41 +00:00
martinsumner
e18d2f2f00 Delete the ETS table from CDB files 
Rather than simply dereference it - delete it
 2017-03-21 01:31:42 +00:00
martinsumner
419541f5dd Fix to delete_pending state 2017-03-20 23:43:31 +00:00
martinsumner
415ac6017b Move sst get_kv range back inside process 
Moved outside to stop blocking, but also avoids copy.  Move back out to
see if it may be related to the binary memory leak
 2017-03-20 23:22:46 +00:00
martinsumner
14d445b989 Merge remote-tracking branch 'refs/remotes/origin/master' into mas-etsmem-i52 2017-03-20 22:46:18 +00:00
Martin Sumner
46759b945b Merge pull request #53 from martinsumner/mas-cdbcrc-i31 
Switch to binary vclock
 2017-03-20 22:44:59 +00:00
Martin Sumner
a2c164e1dd Switch to binary vclock 2017-03-20 22:44:19 +00:00
martinsumner
7dc4913d5a ETS - delete table not objects 
Try and delete the table not just the objects in the table - will this
improve memory leak?
 2017-03-20 22:43:22 +00:00
Martin Sumner
43c5f2fb07 Merge pull request #51 from martinsumner/mas-cdbcrc-i31 
Mas cdbcrc i31
 2017-03-20 22:18:40 +00:00
Martin Sumner
eec9d509f9 Add back hash performance tests 
Need to consider if magic hash is an issue
 2017-03-20 20:28:47 +00:00
martinsumner
7154815a2b Keep vclock as binary 
No obvious, need at present for vlock to be a term within leveled
 2017-03-20 20:28:02 +00:00
Martin Sumner
994d9758b0 Object now 4 bytes larger 
due to addition of key changes length
 2017-03-20 16:21:49 +00:00
martinsumner
f3ffa920af Trying to standardise binary manipulation of value 
Looking into theory that use of term_to_binary is imperfect.  Also may
be better to compress values only when they are compacted?
 2017-03-20 15:43:54 +00:00
Martin Sumner
0cdc0eb558 Merge pull request #50 from martinsumner/mas-sstbinarytrim-i42 
Mas sstbinarytrim i42
 2017-03-20 10:28:55 +00:00
martinsumner
5c662aeca1 Additional unit test 
Need to test scenario where the key list the SST file created from is an
exact multiple of the slot size
 2017-03-19 23:42:24 +00:00
martinsumner
431c2cee40 Remove unnecessary line 
Brnach cannot be reached as firts key is always discovered when it is a
no_loolup
 2017-03-19 23:37:50 +00:00
martinsumner
f20aba9c8b Curtail trimmed slot crazyness 
There was complicated and confusing code that achieved nothing for
effiency when trimming slots.  the expensive part (binary_to_term) was
still needed on every block, and it was hard to get code coverage and
make sense of what it was really trying to achieve.

This is now much simpler - and may set us up for potential further
indexing help.
 2017-03-19 21:47:22 +00:00
martinsumner
c203e2ee06 Range queries - pass out as binaries 
Avoid converting to erlang temr wihtin the FSM and then requiring a copy
outside of the FSM - pass out as a binary
 2017-03-17 10:47:20 +00:00
martinsumner
f287895db0 Pass out slots as a binary 
If we convetr firts to a list, then the list has to be copied - passing
out as binaries means the bulk can be passed as references
 2017-03-17 10:43:34 +00:00
Martin Sumner
2e1a5e7537 Merge pull request #49 from martinsumner/mas-treelog 
Debug excessive log
 2017-03-16 20:03:41 +00:00
martinsumner
80b62cbff2 Debug excessive log 
Logs excessively during 2i tests.  Set to debug for now, until can think
further about this
 2017-03-16 20:03:18 +00:00
Martin Sumner
7c835eefc3 Merge pull request #48 from martinsumner/mas-snapshotlog 
Remaining ledger snapshots log -> debug
 2017-03-16 19:38:36 +00:00
martinsumner
8b2091cef7 Remaining ledger snapshots log -> debug 
This log under 2i load appears thousands of times per second.  Not
sustainable as an info log.  Will need to think about how to manage
this, but setting back to debug for now
 2017-03-16 19:37:39 +00:00
Martin Sumner
7f50540120 Merge pull request #47 from martinsumner/mas-pushmem-i46 
Mas pushmem i46
 2017-03-16 09:28:44 +00:00
martinsumner
5dbd7a2bc2 Check query out of range 
It doesn't work - so protecting against it in fetch_range is pointless,
will blow up in lookup_slots
 2017-03-16 08:43:18 +00:00
martinsumner
6199a2c352 RTrim 
RTrim only worked in special case of key matching, that would never
occur in real world range query.  RTrim should really check for key
passing.

Returning empty list should not be possible - unless the query is
outside of the range entirely (and such a query should never go to this
SST).
 2017-03-16 08:37:36 +00:00
martinsumner
dde37566b9 Add unit test for more than one slot 2017-03-15 16:40:43 +00:00
martinsumner
c6d17b998e Additional unit tests for SST range fetches 
Resolve some of coverage issues
 2017-03-15 11:27:46 +00:00
martinsumner
508da0be45 Additional unit tests 2017-03-14 22:47:48 +00:00