I ran into an issue where one instance in a cluster of application servers backed by HBase stopped processing requests. Looking at a thread dump, it seems HBase client threads are deadlocked:
https://pastebin.com/raw/B3FJL1Ag The deadlock seemed to happen at the same time that a region server was abruptly stopped (the physical server was restarted unexpectedly). I'm using the hbase async API. The hbase client version is 2.2.4. The server is running 2.2.4 as well. What can I do to help get this fixed or work around it? Thanks, Whitney
