Native Client for VMware Tanzu GemFire 10.2 Documentation

Published September 10, 2021.

The Native Client for VMware Tanzu GemFire is a library that provides access for C++ and Microsoft® .NET™ clients to a GemFire distributed system.

The Release Notes, below, describe new features and list issue resolutions for both C++ and .NET clients.

The C++ and .NET clients are documented in separate user guides:

See the API docs for API details:

See the VMware Tanzu GemFire User Guide for information regarding the server.

Native Client for VMware Tanzu GemFire version 10.2 Release Notes

What’s New in Native Client for VMware Tanzu GemFire version 10.2

Native Client for VMware Tanzu GemFire version 10.2 is based on Apache Geode Native.

The Apache Geode community has a host of examples based on the latest C++ and .NET APIs (https://github.com/apache/geode-native/tree/develop/examples).

Native Client for VMware Tanzu GemFire version 10.2 includes the following enhancements:

  • Support for off-platform access to VMware Tanzu GemFire for VMs via SNI proxy
  • Support for autoserializing unsigned types, guids, and decimals
  • Support for lazy loading of OpenSSL, significantly improving the developer’s experience on Windows when using .NET
  • Performance improvements for PDX deserialization
  • Addition of a client-side exception for server low memory

Resolved Issues

This section describes issues resolved in each maintenance release of Native Client v10.2, showing the most recent release first.

Issues Resolved in Native Client 10.2.5

GEMNC-505: Fixed a session state bug wherein session state entries were not being persisted for the full user-specified timeout.

Issues Resolved in Native Client 10.2.4

GEODE-9412, GEMNC-504: Fixed a problem with unicode character translation that could cause client apps to crash with an “external component” exception.

Issues Resolved in Native Client 10.2.3

GEODE-9147, GEMNC-501: Fixed an issue in the single-hop PutAll operation in which keys were silently dropped when the server bucket locations for the keys were not found. The operation now waives the single-hop restriction in this case to ensure that the PutAll operation is completed.

GEODE-9171, GEMNC-503: Fixed a memory leak in .NET client applications that occurred on cache closure.

Issues Resolved in Native Client 10.2.2

GEODE-8887, GEMNC-495: Tightened up runtime initialization code to eliminate timing-related event messaging issues that could, on rare occasions, result in a client data operation being ignored on the server.

GEODE-8892: Loosened restrictions on log file names to allow characters that are legal in a variety of operating systems.

Issues Resolved in Native Client 10.2.1

GEMNC-492: .NET session state provider now correctly parses a locators parameter in Web.config that specifies multiple locators.

GEMNC-494, GEODE-8806: Fixed log rolling code to properly honor file and disk space limits.

Issues Resolved in Native Client 10.2.0

GEODE-7868: Added support for autoserializing unsigned types, guids, and decimals.

GEODE-7930: Endpoint names are no longer truncated to 99 characters. The Native Client now supports endpoint names that meet the RFC 2181 standard of 255 characters for fully-qualified domain names. This solution also corrects a spurious “Failed to add endpoint” error that was issued when, in fact, no error had occurred.

GEODE-7944: Fixed a “No locators available” exception that occurred when subscriptions are enabled and log-level=debug.

GEODE-8015, GEMNC-470: Added debugging symbols to the released libraries. The Native Client release for Windows now includes a .pdb symbol file. On Linux, the symbols are now embedded in the shared library (.so file).

GEODE-8053: Fixed a shutdown hang. The statistics-gathering system’s StatsManager no longer attempts to run on a closed, but not yet destroyed, Cache instance.

GEODE-8102: Added support for lazy loading of OpenSSL, significantly improving the developer’s experience on Windows when using .NET.

GEODE-8181: Changed default setting for statistic-sampling-enabled from true to false to match behavior of the Java client.

GEODE-8212: Reduced the number of server connections required to obtain a type ID, improving the performance of PDX deserialization.

GEODE-8537: Fixed a memory leak that occurred when LRU eviction was enabled.

GEODE-8614: Added a client-side exception for server low memory.

GEODE-8397, GEODE-8398: Extended PoolFactory API to support SNI proxy and added SNI support to .NET API.

GEODE-8441, GEMNC-468: Fixed an issue where AppDomainContext was initialized too late, generating the exception “Can’t pass GCHandle across AppDomains”.

GEODE-8674, GEMNC-488: Fixed a memory leak that occurred when a DataInput object created using a constructor with a buffer parameter is removed.

GEODE-8754, GEMNC-485: Fixed a deserialization error in .NET DataInput::ReadObject.

GEODE-8773, GEMNC-490: Fixed bug which caused client PING and CLOSE_CONNECTION calls to implicitly initiate a transaction on servers.