EdColeman opened a new pull request, #2769: URL: https://github.com/apache/accumulo/pull/2769
Modify the synchronization of configurations cached in the ServerConfigurationFactory with ZooKeeper. The previous implementation leveraged the caffeine cache refresh after write capability - however, the secondary caching of configurations in the SeverConfigurationFactory makes that capability less effective. Because the secondary cache and the data versions use the secondary cache, the prop cache implementation is read less frequently. The use of data versions is an optimization for iterators that avoids any overhead from reading the entire property payload. These changes provide the following benefits over the original implementation: - deletions are detected and eliminate the persistent caching of configurations. - detected changes are propagated to the prop store. - uses lighter weight getStatus calls. - provides jitter between calls and staggered invocations to reduce ZooKeeper load -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@accumulo.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
