[jira] [Created] (HDFS-17080) Fix ec connection leak (GitHub PR#5807)

["Wei-Chiu Chuang (Jira)" <ji...@apache.org>]

Wei-Chiu Chuang created HDFS-17080:
--------------------------------------

             Summary: Fix ec connection leak (GitHub PR#5807)
                 Key: HDFS-17080
                 URL: https://issues.apache.org/jira/browse/HDFS-17080
             Project: Hadoop HDFS
          Issue Type: Task
            Reporter: Wei-Chiu Chuang


Creating this jira to track GitHub PR #5807.

{quote}Description of PR
This PR fixes EC connection leak if got exception when constructing reader.

How was this patch tested?
Cluster: Presto
Data: EC
Query: select col from table(EC data) limit 10

Presto is a long time running process to deal with query.
In this case, when it gets 10 records, it will interrupt other threads.
Other threads may be in constructing reader or getting next record.
If getting next record is interrupted, it will be caught and Presto will close it.
But if constructing reader is interrupted, Presto cannot close it because reader in Presto has not been created.
So we can observe whether EC connection is closed when doing EC limit query.
Use netstat command.{quote}



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org