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Code Issues Releases Activity

databases/cego: 2.26.7 -> 2.26.9

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- Version passed concurrent load test with 10 million concurrent
  operations ( random insert, update and delete on one table with 2
  processes )
- Fix in CegoFileHandler::allocatePage, In case of page exceed with
  appendMode = true, a second try is done with appendMode = false
- Small fix in CegoObjectManager::reorgObject, ref page id information
  for append mode is set to new last page id
- Small fix in CegoSelect::filterRefs, allow expressions with constant
  values ( getAttrRefList= 0 ) in aggregation
- Locking improvements for delete and update operations.
  All delete operations are done now via transactions ( introduced
  CegoTableManager::deleteDataTableAtomic ). This allows to use a
  shared lock as the table lock for using the table
  (CegoDistManager::deleteLocalDataTable and
  CegoDistManager::updateLocalDataTable )
  As a result, a table can be accessed in parallel during a ( long
  running ) delete operation on the table( e.g. delete from table).
  E.g. select count(*) from table will not block anymore, rather
  indicates the remaining number of tuples in the table.
  This modification is still under investigation and must verfied
  ( also in combination with btree/index objects on the table )
- Fix in CegoBTreeManager::deleteBTree, the relevance value was not
  calculated correctly
  Fix in CegoQuery, cache invalidation is done before query operations.
  Otherwise, if the query is aborted, an exception is thrown and
  the cache is not cleaned
- Small modifications on cgblow load simulation client
- Changed locking for delete an update operations to exclusive due
  to concurrency prpblems with btree operations
- Added page locking to AVLIndexManager and AVLIndexCursor
- Improvements for locking done. Since locking is done on page level,
  Insert and delete operations can be done now in parallel . For this
  locking had to be introduced in CegoBtreeManager::insertBTree and
  CegoBTreeManager::deleteBTree
  Further performance path for grouping queries in CegoGroupSpace.
  Since the current grouping key is stored now in the class variable
  _groupSchema, some expensive list copy operations could be avoided.
  This improves performance for about 4%.

Submitted by:	Bjoern Lemke <lemke@lemke-it.com>
This commit is contained in:
Kurt Jaeger 2015-11-07 09:28:21 +00:00
parent f507e2d07b
commit cae03e9374
Notes: svn2git 2021-03-31 03:12:20 +00:00 
svn path=/head/; revision=400974
3 changed files with 4 additions and 3 deletions
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2
databases/cego/Makefile
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@ -1,7 +1,7 @@
# $FreeBSD$
PORTNAME= cego
PORTVERSION= 2.26.7
PORTVERSION= 2.26.9
CATEGORIES= databases
MASTER_SITES= http://www.lemke-it.com/

4
databases/cego/distinfo
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@ -1,2 +1,2 @@
SHA256 (cego-2.26.7.tar.gz) = 9843a5f00cdc0b806a1e2fc65b8124b36b88d6a2a9cdb3fcc405603d5dcf272b
SIZE (cego-2.26.7.tar.gz) = 1226686
SHA256 (cego-2.26.9.tar.gz) = 31f38e21226ff20cd5fc81db7568297a6e8364f652e0c6276c19931aaeab7ef7
SIZE (cego-2.26.9.tar.gz) = 1227953

1
databases/cego/pkg-plist
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@ -137,5 +137,6 @@ lib/libcgwrap.so.2.0.0
%%DATADIR%%/cgbackup
%%DATADIR%%/cgmkdb
%%DATADIR%%/cgrecover
%%DATADIR%%/cgsimload
%%DATADIR%%/startdb
%%DATADIR%%/stopdb