Release Notes NCache 4.4 (Service Pack 2)

Tuesday, July 28, 2015

Introduction

NCache 4.4 SP2 contains a few important enhancements related to memory and performance of NCache. This is a recommended upgrade for all NCache users.

Enhancements and New Additions

Following are some enhancements made in this release:

1. DumpCacheData Tool:

Dumpcachedata tool takes a dump of a running cache by enumerating cache data and stores this data on a location specified by user. This data can later be reloaded to a new or same cache. This tool is helpful when customers need to restart their cache servers while they don’t want to lose their business critical data in cache.

2. DumpCacheKeys Tool:

DumpCache tool is renamed to DumpCacheKeys.

3. LinqPad Integration:

LinqPad is a third party tool that can be used with NCache to query cache data. Data is shown on LinqPad console in a tabular form.

4. HotApplicable Settings in Service Configuration:

There are a few settings at service config level that now can be hot applied to caches running on a server. Previously, service restart was needed to apply settings defined in service configuration file. The list of HotApplicable settings is as follows:

#	Property Name	Hot Applicable
1	NCacheServer.LicenseLogging	Yes
2	NCacheServer.EnableNagling	Yes
3	NCacheServer.NaglingSize	Yes
3	NCacheServer.NaglingSize	Yes
4	NCacheServer.EventBulkCount	Yes
5	NCacheServer.ExpirationBulkRemoveSize	Yes
6	NCacheServer.ExpirationBulkRemoveDelay	Yes
7	NCacheServer.EvictionBulkRemoveSize	Yes
8	NCacheServer.EvictionBulkRemoveDelay	Yes
9	NCacheServer.BulkItemsToReplicate	Yes
10	NCacheServer.EnableCacheLastAccessCount	Yes
11	NCacheServer.EnableCacheLastAccessCountLogging	Yes
12	NCacheServer.CacheLastAccessCountInterval	Yes
13	NCacheServer.CacheLastAccessLogInterval	Yes
14	NCacheServer.LOHPoolSize	Yes
15	NCacheServer.LOHPoolBufferSize	Yes
16	NCacheServer.CacheSizeThreshold	Yes
17	NCacheServer.CacheSizeReportInterval	Yes
18	NCacheServer.LogClientEvents	Yes
19	NCacheServer.EventLogLevel	Yes
20	NCacheServer.AllowRequestEnquiry	Yes
21	NCacheServer.RequestEnquiryInterval	Yes
22	NCacheServer.ResponseDataSize	Yes
23	NCacheServer.EnableSnapshotPoolingCacheSize	Yes
24	NCacheServer.SnapshotPoolSize	Yes
25	NCacheServer.SnapshotCreationThreshold	Yes
26	NCacheServer.RequestInquiryCleanInterval	Yes

5. Optimizations in Client Cache:

A few architectural changes are made in client cache to have a better performance in case of bulk operations.

List of Bugs Fixed:

• 744113 FIX: Operations are not retried in case of connection failures or other internal exceptions. Instead these exceptions are thrown to client applications.
• 744114 FIX: Eviction is turned off by default.
• 744115 FIX: Session locking is turned off by default.
• 744116 FIX: NCache Manager allows non-admins to perform administrative operations.
• 744117 FIX: Activation tool crashes while activating machines with more than or equal to 32 cores.