Hi all, I would like to merge the HDFS-347 branch back to trunk. It's been under intensive review and testing for several months. The branch adds a lot of new unit tests, and passes Jenkins as of 2/15 [1]
We have tested HDFS-347 with both random and sequential workloads. The short-circuit case is substantially faster [2], and overall performance looks very good. This is especially encouraging given that the initial goal of this work was to make security compatible with short-circuit local reads, rather than to optimize the short-circuit code path. We've also stress-tested HDFS-347 on a number of clusters. This iniial VOTE is to merge only into trunk. Just as we have done with our other recent merges, we will consider merging into branch-2 after the code has been in trunk for few weeks. Please cast your vote by EOD Sunday 2/24. best, Colin McCabe [1] https://issues.apache.org/jira/browse/HDFS-347?focusedCommentId=13579704&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13579704 [2] https://issues.apache.org/jira/browse/HDFS-347?focusedCommentId=13551755&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13551755
