[ https://issues.apache.org/jira/browse/HADOOP-13047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran resolved HADOOP-13047. ------------------------------------- Resolution: Duplicate > S3a Forward seek in stream length to be configurable > ---------------------------------------------------- > > Key: HADOOP-13047 > URL: https://issues.apache.org/jira/browse/HADOOP-13047 > Project: Hadoop Common > Issue Type: Sub-task > Components: fs/s3 > Affects Versions: 2.8.0 > Reporter: Steve Loughran > Assignee: Steve Loughran > Attachments: HADOOP-13047.WIP.2.patch, HADOOP-13047.WIP.patch > > > Even with lazy seek, tests can show that sometimes a short-distance forward > seek is triggering a close + reopen, because the threshold for the seek is > simply available bytes in the inner stream. > A configurable threshold would allow data to be read and discarded before > that seek. This should be beneficial over long-haul networks as the time to > set up the TCP channel is high, and TCP-slow-start means that the ramp up of > bandwidth is slow. In such deployments, it will better to read forward than > re-open, though the exact "best" number will vary with client and endpoint. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org