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https://issues.apache.org/jira/browse/HIVE-24259?focusedWorklogId=504740&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-504740
]
ASF GitHub Bot logged work on HIVE-24259:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Oct/20 14:32
Start Date: 26/Oct/20 14:32
Worklog Time Spent: 10m
Work Description: sankarh commented on a change in pull request #1610:
URL: https://github.com/apache/hive/pull/1610#discussion_r511995335
##########
File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/CachedStore.java
##########
@@ -2836,14 +2836,32 @@ long getPartsFound() {
@Override
public SQLAllTableConstraints getAllTableConstraints(String catName, String
dbName, String tblName)
throws MetaException, NoSuchObjectException {
- SQLAllTableConstraints sqlAllTableConstraints = new
SQLAllTableConstraints();
- sqlAllTableConstraints.setPrimaryKeys(getPrimaryKeys(catName, dbName,
tblName));
- sqlAllTableConstraints.setForeignKeys(getForeignKeys(catName, null, null,
dbName, tblName));
- sqlAllTableConstraints.setUniqueConstraints(getUniqueConstraints(catName,
dbName, tblName));
-
sqlAllTableConstraints.setDefaultConstraints(getDefaultConstraints(catName,
dbName, tblName));
- sqlAllTableConstraints.setCheckConstraints(getCheckConstraints(catName,
dbName, tblName));
-
sqlAllTableConstraints.setNotNullConstraints(getNotNullConstraints(catName,
dbName, tblName));
- return sqlAllTableConstraints;
+
+ catName = StringUtils.normalizeIdentifier(catName);
+ dbName = StringUtils.normalizeIdentifier(dbName);
+ tblName = StringUtils.normalizeIdentifier(tblName);
+ if (!shouldCacheTable(catName, dbName, tblName) || (canUseEvents &&
rawStore.isActiveTransaction())) {
+ return rawStore.getAllTableConstraints(catName, dbName, tblName);
+ }
+
+ Table tbl = sharedCache.getTableFromCache(catName, dbName, tblName);
+ if (tbl == null) {
+ // The table containing the constraints is not yet loaded in cache
+ return rawStore.getAllTableConstraints(catName, dbName, tblName);
+ }
+ SQLAllTableConstraints constraints =
sharedCache.listCachedAllTableConstraints(catName, dbName, tblName);
+
+ // if any of the constraint value is missing then there might be the case
of partial constraints are stored in cached.
+ // So fall back to raw store for correct values
+ if (constraints != null &&
CollectionUtils.isNotEmpty(constraints.getPrimaryKeys()) && CollectionUtils
Review comment:
Majority of the calls are likely to be redirected to RawStore and lose
the advantage of cache. How about an optional flag in SQLAllTableConstraints
and TableWrapper to mark if it is a complete snapshot of constraints?
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Issue Time Tracking
-------------------
Worklog Id: (was: 504740)
Time Spent: 20m (was: 10m)
> [CachedStore] Optimise getAlltableConstraint from 6 cache call to 1 cache call
> ------------------------------------------------------------------------------
>
> Key: HIVE-24259
> URL: https://issues.apache.org/jira/browse/HIVE-24259
> Project: Hive
> Issue Type: Sub-task
> Reporter: Ashish Sharma
> Assignee: Ashish Sharma
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Description -
> currently inorder to get all constraint form the cachedstore. 6 different
> call is made to the store. Instead combine that 6 call in 1
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