databases/cego: 2.26.14 -> 2.26.16
lfcbase:
- Improvement for ListT template class. The end of the list is now
stored int _listEnd variable. This improves Insert performance,
since the end of the list can immediately accesed instead of tracking
through the whole list until the end is reached.
- Patch in ThreadLock, the mutex for lock statistics has been
removed, since there is no need for synchronization. Also errors
have not been checked for the pthread_rwlock_wrlock, which might
cause some deadlocks.
cego:
- Ugly bug fixed in CegoObjectManager::releaseDataPtrUnlocked.
The logical operator && must be replaced by ||, otherwise fix leak arises
- Fix in CegoSelect::nextTuple for query cache to avoid, that queries
including system tables are cached.
- Error message fixes in CegoXPorter
- Introduced bufferpool distribution rate information in show pool output.
This indicates, if the buffer pool is used in a balanced way.
The behaviour can be changed with the BUFFERPOOLHASHKEY parameter.
The list pool command now receives the pool information in several
chunk messages. This allows to print also very large buffer pool
configurations
- Introduced BUFFERPOOLHASHKEY as a database tuning parameter. Based
on this parameter, the corresponding bufferpool slot for a fileId,
pageId tuple is calculated. Depending on the configured datafile
size, it might be useful to adjust this parameter
- Cego Tera Test started. Approach is to load about 1TB of random
data through the whole stack ( via cgblow ). Actually we are running
with 19 parallel processes loading concurrently 4 different tables.
Estimated date to achieve TB-Size is in about one month.
- Changed command line argument --nolockstat to --lockstat. So the
default value is lockstat disabled, since this has impact to the
database performance
- Modification of hash function in CegoBufferPool to achieve a
better distribution for large buffer pool configurations
Submitted by: Bjoern Lemke <lemke@lemke-it.com>
990ae44848