This is the OVIS-4.3.4 G/A Release
Significant testing on the socket, RDMA, and uGNI transports has been
done with Socket and uGNI scaling to three levels of aggregation and
30,000 sets in the aggregate.
The RDMA transport has been tested to a few thousands of sets.
The fabric transport should be considered Alpha and is suitable
for development, but not deployment at this time.
This release includes the following new features
* LDMS Transport performance statistics (ldmsd_controller xprt_stats command)
* Zap Thread utilization tracking (ldmsd_controller thread_stats command)
* uGNI resliency improvements to aid with resource error handling
* Packaging updates and github automation to help with tarball generation and release tagging
* A reference counting service has been implemented that supports 'named references'. In debug mode (when REF_TRACK is defined), references are tracked (function name, and line number) when they are taken and when they are released, and individual reference counts are kept for each name. This makes it easier to debug reference tracking during development.
* The new ref_t reference counting mechanism has been added to struct ldms_set and struct ldms_rbuf_desc in support of a robust set-delete capability
* An "end-to-end" protocol has been added for deleting metric sets. When an ldmsd deletes a set, each peer that has a memory handle on the set is notified. The set resources are not freed until all peers acknowledge that they have received the delete notification.
* A service (zap_zerr2errno) has been added to consistently map Zap errors to Unix errno
* Updates to the lustre2_client sampler to support newer version of Lustre
