Release Notes NCache 4.4
Wednesday, January 08, 2015
Introduction
NCache 4.4 contains some important enhancements and few major bug fixes related to the
stability of the cache. It is a recommended upgrade for all users.
Enhancements and New Additions
Following are some enhancements made in this release:
- Annual Licensing:
NCache licensing has been moved to Annual licensing model from previously
supported perpetual model.
- Memory optimization of internal data structures:
Internal data structures are optimized to reduce the memory overhead of stored
items.
- Cluster startup time improvements:
Huge improvements in cluster startup time for cluster sizes over 20 nodes.
- New perfmon counter for memory usage:
New perfmon counters are introduced to measure the memory acquired by various
indexes. Following are the brief descriptions for each of them:
- Eviction Index Size: Size of eviction indices define on the cache.
- Expiration Index Size: Size of expiration indices defined on cache. (All dependencies
meta info is also covered under this counter like meta info of ‘Key Dependency’,
‘SQL Dependency’ etc…)
- Group Index Size: Size of group and sub group indices.
- Query Index Size: Size of query indices defined on cache.
- NOTE: “Cache Size” counter now includes the size of actual key, value pair and the
memory utilized by above mentioned indexes.
- OQL related new permfon counters:
OQL related new perfmon counters are also introduced to measure the performance
of the query related cache operations like:
Average µs/Query Execution: Average time query take while executing.
Average Query Size: Average Number of items returned by queries.
Queries/sec: Number of queries per sec on cache.
- Support for Windows Server 2012 R2:
NCache is now fully compatible with Windows Server 2012 R2.
List of Bugs Fixed:
- 744101 FIX: Timeouts to some of the connected clients on server node join.
- 744102 FIX: Item loss in partitioned-replica of two nodes, when one of them goes down
while each node has more than 50% of cache filled.
- 744103 FIX: NCache Manager lists down IPv6 addresses on multiple NIC configuration
dialog.
- 744104 FIX: Few other minor bug fixes in command line tools.