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https://issues.apache.org/jira/browse/HIVE-22015?focusedWorklogId=454344&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-454344
]
ASF GitHub Bot logged work on HIVE-22015:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 03/Jul/20 09:38
Start Date: 03/Jul/20 09:38
Worklog Time Spent: 10m
Work Description: adesh-rao commented on a change in pull request #1109:
URL: https://github.com/apache/hive/pull/1109#discussion_r449486010
##########
File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/SharedCache.java
##########
@@ -1788,6 +2082,58 @@ public void addPartitionToCache(String catName, String
dbName, String tblName, P
}
}
+ public void addPrimaryKeysToCache(String catName, String dbName, String
tblName, List<SQLPrimaryKey> keys) {
+ try {
+ cacheLock.readLock().lock();
Review comment:
This is fine, the below method (cachePrimaryKeys), takes the writeLock.
the read lock here, is just to get the tblWrapper object.
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Issue Time Tracking
-------------------
Worklog Id: (was: 454344)
Time Spent: 1h 50m (was: 1h 40m)
> [CachedStore] Cache table constraints in CachedStore
> ----------------------------------------------------
>
> Key: HIVE-22015
> URL: https://issues.apache.org/jira/browse/HIVE-22015
> Project: Hive
> Issue Type: Sub-task
> Reporter: Daniel Dai
> Assignee: Adesh Kumar Rao
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> Currently table constraints are not cached. Hive will pull all constraints
> from tables involved in query, which results multiple db reads (including
> get_primary_keys, get_foreign_keys, get_unique_constraints, etc). The effort
> to cache this is small as it's just another table component.
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