[HDFS-4642] Allow lease recovery for multiple paths to be issued in one request

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Later
• Assignee: Unassigned
• Reporter: Ted Yu
• Created: 27/Mar/13 16:16
• Updated: 12/Nov/13 04:42
• Resolved: 12/Nov/13 04:42

Description

Currently client can only request lease recovery for one Path:

  public boolean recoverLease(Path f) throws IOException {

For HBase distributed log splitting, Nicolas made a suggestion here:
https://issues.apache.org/jira/browse/HBASE-7878?focusedCommentId=13615364&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13615364

HBase master collects the files that should be split, it issues lease recovery for the files (in one request), then distribute log splitting.

This would help shorten MTTR.

Issue Links

• relates to: HBASE-5843 Improve HBase MTTR - Mean Time To Recover