Hello, I'm running an application doing a lot of Puts (size anywhere between 0 and 10MB, one cell at a time); occasionally I'm getting an error like the below: 2017-10-09 04:29:29,811 WARN [AsyncProcess] - #13368, table=researchplatform:repo_stripe, attempt=1/1 failed=1ops, last exception: java.io.IOException: com.google.protobuf.ServiceException: java.lang.OutOfMemoryError: Direct buffer memory on c169dzv.int.westgroup.com,60020,1506476748534, tracking started Mon Oct 09 04:29:29 EDT 2017; not retrying 1 - final failure
After that the connection to RegionServer becomes unusable. Every subsequent attempt to execute Put on that connection results in CallTimeoutException. I only found the OutOfMemory by reducing the number of tries to 1. The host running HBase appears to have at least a few GB of free memory available. Server logs do not mention anything about this error. Cluster is running HBase 1.2.0-cdh5.10.2. Is this a known problem? Are there workarounds available? Thanks, Daniel
