deniskuzZ commented on code in PR #5186:
URL: https://github.com/apache/hive/pull/5186#discussion_r1574261500
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standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/txn/TxnHandler.java:
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@@ -705,12 +706,11 @@ public LockResponse lockMaterializationRebuild(String
dbName, String tableName,
public boolean heartbeatLockMaterializationRebuild(String dbName, String
tableName, long txnId) throws MetaException {
int result = jdbcResource.execute(
"UPDATE \"MATERIALIZATION_REBUILD_LOCKS\"" +
- " SET \"MRL_LAST_HEARTBEAT\" = " + Instant.now().toEpochMilli() +
- " WHERE \"MRL_TXN_ID\" = " + txnId +
- " AND \"MRL_DB_NAME\" = ?" +
- " AND \"MRL_TBL_NAME\" = ?",
+ " SET \"MRL_LAST_HEARTBEAT\" = " +
getEpochFn(jdbcResource.getDatabaseProduct()) +
Review Comment:
HIVE-6965: Transaction manager should use RDBMS time instead of machine
time. Determine the current time, using the RDBMS as a source of truth.
However, since it's only used for MV rebuild that's probably ok
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