[ https://issues.apache.org/jira/browse/HDFS-8320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zhe Zhang updated HDFS-8320: ---------------------------- Attachment: HDFS-8320-HDFS-7285.02.patch Thanks Jing for the good catch! Updated patch to address the issue. The Jenkins failures don't seem related. I hand picked a few and they passed. > Erasure coding: consolidate striping-related terminologies > ---------------------------------------------------------- > > Key: HDFS-8320 > URL: https://issues.apache.org/jira/browse/HDFS-8320 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Zhe Zhang > Assignee: Zhe Zhang > Attachments: HDFS-8320-HDFS-7285.00.patch, > HDFS-8320-HDFS-7285.01.patch, HDFS-8320-HDFS-7285.02.patch > > > Right now we are doing striping-based I/O in a number of places: > # Client output stream (HDFS-7889) > # Client input stream > #* pread (HDFS-7782, HDFS-7678) > #* stateful read (HDFS-8033, HDFS-8281, HDFS-8319) > # DN reconstruction (HDFS-7348) > In each place we use one or multiple of the following terminologies: > # Cell > # Stripe > # Block group > # Internal block > # Chunk > This JIRA aims to systematically define these terminologies in relation with > each other and in the context of the containing file. For example, a cell > belong to stripe _i_ and internal block _j_ can be indexed as {{(i, j)}} and > its logical index _k_ in the file can be calculated. > With the above consolidation, hopefully we can further consolidate striping > I/O codes. -- This message was sent by Atlassian JIRA (v6.3.4#6332)