[jira] [Updated] (HIVE-17340) TxnHandler.checkLock() - reduce number of SQL statements
[ https://issues.apache.org/jira/browse/HIVE-17340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Eugene Koifman updated HIVE-17340: -- Resolution: Fixed Fix Version/s: 3.0.0 Status: Resolved (was: Patch Available) > TxnHandler.checkLock() - reduce number of SQL statements > > > Key: HIVE-17340 > URL: https://issues.apache.org/jira/browse/HIVE-17340 > Project: Hive > Issue Type: Improvement > Components: Transactions >Reporter: Eugene Koifman >Assignee: Eugene Koifman > Fix For: 3.0.0 > > Attachments: HIVE-17340.03.patch > > > This calls acquire(Connection dbConn, Statement stmt, long extLockId, > LockInfo lockInfo) > for each lock in the same DB transaction - 1 Update stmt per acquire(). > There is no reason all of them cannot be sent in 1 statement if all the locks > are granted > With a lot of partitions this can be a perf issue -- This message was sent by Atlassian JIRA (v6.4.14#64029)
[jira] [Updated] (HIVE-17340) TxnHandler.checkLock() - reduce number of SQL statements
[ https://issues.apache.org/jira/browse/HIVE-17340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Eugene Koifman updated HIVE-17340: -- Attachment: HIVE-17340.03.patch > TxnHandler.checkLock() - reduce number of SQL statements > > > Key: HIVE-17340 > URL: https://issues.apache.org/jira/browse/HIVE-17340 > Project: Hive > Issue Type: Improvement > Components: Transactions >Reporter: Eugene Koifman >Assignee: Eugene Koifman > Attachments: HIVE-17340.03.patch > > > This calls acquire(Connection dbConn, Statement stmt, long extLockId, > LockInfo lockInfo) > for each lock in the same DB transaction - 1 Update stmt per acquire(). > There is no reason all of them cannot be sent in 1 statement if all the locks > are granted > With a lot of partitions this can be a perf issue -- This message was sent by Atlassian JIRA (v6.4.14#64029)
[jira] [Updated] (HIVE-17340) TxnHandler.checkLock() - reduce number of SQL statements
[ https://issues.apache.org/jira/browse/HIVE-17340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Eugene Koifman updated HIVE-17340: -- Status: Patch Available (was: Open) > TxnHandler.checkLock() - reduce number of SQL statements > > > Key: HIVE-17340 > URL: https://issues.apache.org/jira/browse/HIVE-17340 > Project: Hive > Issue Type: Improvement > Components: Transactions >Reporter: Eugene Koifman >Assignee: Eugene Koifman > Attachments: HIVE-17340.03.patch > > > This calls acquire(Connection dbConn, Statement stmt, long extLockId, > LockInfo lockInfo) > for each lock in the same DB transaction - 1 Update stmt per acquire(). > There is no reason all of them cannot be sent in 1 statement if all the locks > are granted > With a lot of partitions this can be a perf issue -- This message was sent by Atlassian JIRA (v6.4.14#64029)
[jira] [Updated] (HIVE-17340) TxnHandler.checkLock() - reduce number of SQL statements
[ https://issues.apache.org/jira/browse/HIVE-17340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Eugene Koifman updated HIVE-17340: -- Summary: TxnHandler.checkLock() - reduce number of SQL statements (was: TxnHandler.checkLock(Connection dbConn, long extLockId) optimization) > TxnHandler.checkLock() - reduce number of SQL statements > > > Key: HIVE-17340 > URL: https://issues.apache.org/jira/browse/HIVE-17340 > Project: Hive > Issue Type: Improvement > Components: Transactions >Reporter: Eugene Koifman >Assignee: Eugene Koifman > > This calls acquire(Connection dbConn, Statement stmt, long extLockId, > LockInfo lockInfo) > for each lock in the same DB transaction - 1 Update stmt per acquire(). > There is no reason all of them cannot be sent in 1 statement if all the locks > are granted > With a lot of partitions this can be a perf issue -- This message was sent by Atlassian JIRA (v6.4.14#64029)
