Tommy Li created HBASE-21775: -------------------------------- Summary: The BufferedMutator doesn't ever refresh region location cache Key: HBASE-21775 URL: https://issues.apache.org/jira/browse/HBASE-21775 Project: HBase Issue Type: Bug Components: Client Reporter: Tommy Li Assignee: Tommy Li Fix For: 3.0.0
{color:#222222}I noticed in some of my writing jobs that the BufferedMutator would get stuck retrying writes against a dead server.{color} {code:java} 19/01/18 15:15:47 INFO [Executor task launch worker for task 0] client.AsyncRequestFutureImpl: #2, waiting for 1 actions to finish on table: dummy_table 19/01/18 15:15:54 WARN [htable-pool3-t56] client.AsyncRequestFutureImpl: id=2, table=dummy_table, attempt=15/21, failureCount=1ops, last exception=org.apache.hadoop.hbase.DoNotRetryIOException: Operation rpcTimeout on <SERVER>,17020,1547848193782, tracking started Fri Jan 18 14:55:37 PST 2019; NOT retrying, failed=1 -- final attempt! 19/01/18 15:15:54 ERROR [Executor task launch worker for task 0] IngestRawData.map(): [B@258bc2c7: org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException: Failed 1 action: Operation rpcTimeout: 1 time, servers with issues: <SERVER>,17020,1547848193782 {code} After the single remaining action permanently failed, it would resume progress only to get stuck again retrying against the same dead server: {code:java} 19/01/18 15:21:18 INFO [Executor task launch worker for task 0] client.AsyncRequestFutureImpl: #2, waiting for 1 actions to finish on table: dummy_table 19/01/18 15:21:18 INFO [Executor task launch worker for task 0] client.AsyncRequestFutureImpl: #2, waiting for 1 actions to finish on table: dummy_table 19/01/18 15:21:20 INFO [htable-pool3-t55] client.AsyncRequestFutureImpl: id=2, table=dummy_table, attempt=6/21, failureCount=1ops, last exception=java.net.ConnectException: Call to <SERVER> failed on connection exception: org.apache.hbase.thirdparty.io.netty.channel.ConnectTimeoutException: connection timed out: <SERVER> on <SERVER>,17020,1547848193782, tracking started null, retrying after=20089ms, operationsToReplay=1 {code} Only restarting the client process to generate a new BufferedMutator instance would fix the issue, at least until the next regionserver crash -- This message was sent by Atlassian JIRA (v7.6.3#76005)