adesh-rao commented on a change in pull request #1109:
URL: https://github.com/apache/hive/pull/1109#discussion_r449528675
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File path:
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/cache/SharedCache.java
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@@ -514,6 +655,130 @@ public boolean containsPartition(List<String> partVals) {
return containsPart;
}
+ public void removeConstraint(String name) {
+ try {
+ tableLock.writeLock().lock();
+ Object constraint = null;
+ MemberName mn = null;
+ Class constraintClass = null;
+ if (this.primaryKeyCache.containsKey(name)) {
+ constraint = this.primaryKeyCache.remove(name);
+ mn = MemberName.PRIMARY_KEY_CACHE;
+ this.memberCacheDirty[mn.ordinal()].set(true);
+ constraintClass = SQLPrimaryKey.class;
+ } else if (this.foreignKeyCache.containsKey(name)) {
+ constraint = this.foreignKeyCache.remove(name);
+ mn = MemberName.FOREIGN_KEY_CACHE;
+ this.memberCacheDirty[mn.ordinal()].set(true);
+ constraintClass = SQLForeignKey.class;
+ } else if (this.notNullConstraintCache.containsKey(name)) {
+ constraint = this.notNullConstraintCache.remove(name);
+ mn = MemberName.NOTNULL_CONSTRAINT_CACHE;
+ this.memberCacheDirty[mn.ordinal()].set(true);
+ constraintClass = SQLNotNullConstraint.class;
+ } else if (this.uniqueConstraintCache.containsKey(name)) {
+ constraint = this.uniqueConstraintCache.remove(name);
+ mn = MemberName.UNIQUE_CONSTRAINT_CACHE;
+ this.memberCacheDirty[mn.ordinal()].set(true);
+ constraintClass = SQLUniqueConstraint.class;
+ }
+
+ if(constraint == null) {
+ LOG.debug("Constraint: " + name + " does not exist in cache.");
+ return;
+ }
+ int size = getObjectSize(constraintClass, constraint);
+ updateMemberSize(mn, -1 * size, SizeMode.Delta);
+
+ } finally {
+ tableLock.writeLock().unlock();
+ }
+ }
+
+ public void refreshPrimaryKeys(List<SQLPrimaryKey> keys) {
+ Map<String, SQLPrimaryKey> newKeys = new ConcurrentHashMap<>();
+ try {
+ tableLock.writeLock().lock();
+ int size = 0;
+ for (SQLPrimaryKey key : keys) {
+ if
(this.memberCacheDirty[MemberName.PRIMARY_KEY_CACHE.ordinal()].compareAndSet(true,
false)) {
Review comment:
Updated the name of the variable. This is used during refreshOperation.
If a particular Object cache is set to true, means it was updated after the
last refresh operation and should be refreshed now, otherwise, current refresh
operation will not modify/refresh the cache.
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