[ https://issues.apache.org/jira/browse/HDFS-9814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dinesh S. Atreya updated HDFS-9814: ----------------------------------- Summary: Advance Hybrid Cloud Architecture (AHA) - HDFS Block Level Leases (Locks) (was: Advance Hadoop Architecture (AHA) - HDFS Block Level Leases (Locks)) > Advance Hybrid Cloud Architecture (AHA) - HDFS Block Level Leases (Locks) > ------------------------------------------------------------------------- > > Key: HDFS-9814 > URL: https://issues.apache.org/jira/browse/HDFS-9814 > Project: Hadoop HDFS > Issue Type: New Feature > Reporter: Dinesh S. Atreya > Priority: Major > > Link to Umbrella JIRA https://issues.apache.org/jira/browse/HADOOP-12620 > See > https://issues.apache.org/jira/browse/HADOOP-12620?focusedCommentId=15046300&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15046300 > for more details. > Currently, only file level leases (locks) are supported. This JIRA is for > expanding the capability to allow block level leases (locks). > Block level leases presume that Block Manager as a Service (reference JIRA > https://issues.apache.org/jira/browse/HDFS-5477) solution is available. > File level leases are default. When block level leases are requested, they > will supersede file level leases and lease (lock) capability will advance to > block levels. In the absence of block level leases, leases degenerate into > file level leases. > If we correspond to DBMS paradigm, file level leases amount to table locks; > while row level locks are not possible with HDFS, the closest we can get to > is block level leases (locks). > > This JIRA is within the broad initiative: > Advance Hadoop Architecture (AHA) / Advance Hadoop Adaptabilities (AHA) / > Advance Hybrid Cloud Architecture (AHA) -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org