Notes/Domino Fix List
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| SPR # GMUD5T75ZJ | Fixed in 6.0.4 release |  |
Product Area: Server Technical Area: DECS Platform: Cross Platform
SPR# GMUD5T75ZJ - This SPR changes the concurrency control design for the LCField and LCFieldList hash tables. A mutex lock is provided for each bucket of the hash table and requires most LCField and LCFieldList procedures to use the hash table bucket locks instead of the whole table lock.
Technote Number: 1155213
Problem:
This issue was been reported to Quality Engineering as SPR# GMUD5T75ZJ and has
been addressed in Domino 6.5.1.
Excerpt from the Lotus Notes and Domino Release 6.5.1 MR fix list (available at
http://www.ibm.com/developerworks/lotus/):
DECS
SPR# GMUD5T75ZJ - This SPR changes the concurrency control design for the
LCField and LCFieldList hash tables. A mutex lock is provided for each bucket
of the hash table and requires most LCField and LCFieldList procedures to use
the hash table bucket locks instead of the whole table lock.
The only current workaround is the division of the EI interactive workloads
across multiple Domino servers in a cluster. This would diminish the number of
entries in each respective LCField and LCFieldList hash table, and reduce the
contention for the whole table gating mutexes.
Supporting Information:
Mutex - (Mutual Exclusive). Mutex locks are used to prevent multiple threads
from a simultaneous execute of sections of code which modify shared data. More >
Last Modified on 05/17/2007
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