[jira] [Updated] (HBASE-10241) implement mvcc-consistent scanners (across recovery)
[ https://issues.apache.org/jira/browse/HBASE-10241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Sergey Shelukhin updated HBASE-10241: - Assignee: (was: Sergey Shelukhin) > implement mvcc-consistent scanners (across recovery) > > > Key: HBASE-10241 > URL: https://issues.apache.org/jira/browse/HBASE-10241 > Project: HBase > Issue Type: New Feature > Components: HFile, regionserver, Scanners >Affects Versions: 0.99.0 >Reporter: Sergey Shelukhin > Attachments: Consistent scanners.pdf > > > Scanners currently use mvcc for consistency. However, mvcc is lost on server > restart, or even a region move. This JIRA is to enable the scanners to > transfer mvcc (or seqId, or some other number, see HBASE-8763) between > servers. First, client scanner needs to get and store the readpoint. Second, > mvcc needs to be preserved in WAL. Third, the mvcc needs to be stored in > store files per KV and discarded when not needed. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Updated] (HBASE-10241) implement mvcc-consistent scanners (across recovery)
[ https://issues.apache.org/jira/browse/HBASE-10241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Sergey Shelukhin updated HBASE-10241: - Attachment: Consistent scanners.pdf One-pager implement mvcc-consistent scanners (across recovery) Key: HBASE-10241 URL: https://issues.apache.org/jira/browse/HBASE-10241 Project: HBase Issue Type: New Feature Components: HFile, regionserver, Scanners Affects Versions: 0.99.0 Reporter: Sergey Shelukhin Assignee: Sergey Shelukhin Attachments: Consistent scanners.pdf Scanners currently use mvcc for consistency. However, mvcc is lost on server restart, or even a region move. This JIRA is to enable the scanners to transfer mvcc (or seqId, or some other number, see HBASE-8763) between servers. First, client scanner needs to get and store the readpoint. Second, mvcc needs to be preserved in WAL. Third, the mvcc needs to be stored in store files per KV and discarded when not needed. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
