deniskuzZ commented on code in PR #5246:
URL: https://github.com/apache/hive/pull/5246#discussion_r1600412336
##########
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HMSHandler.java:
##########
@@ -5563,26 +5563,21 @@ public List<Partition> get_partitions_with_auth(final
String dbName,
private void checkLimitNumberOfPartitionsByFilter(String catName, String
dbName,
String tblName, String
filterString,
int maxParts) throws
TException {
- if (isPartitionLimitEnabled()) {
+ if (needCheckPartitionLimit(maxParts)) {
Review Comment:
````
private void checkLimitNumberOfPartitionsByPs(String catName, String
dbName, String tblName,
List<String> partVals, int
maxParts)
throws TException {
if (needCheckPartitionLimit(maxParts)) {
checkLimitNumberOfPartitions(tblName, getNumPartitionsByPs(catName,
dbName, tblName,
partVals));
}
}
private boolean needCheckPartitionLimit(int requestSize) {
int partitionLimit = MetastoreConf.getIntVar(conf,
ConfVars.LIMIT_PARTITION_REQUEST);
return partitionLimit > -1 && (requestSize < 0 || requestSize >
partitionLimit);
}
private void checkLimitNumberOfPartitions(String tblName, int
numPartitions) throws MetaException {
int partitionLimit = MetastoreConf.getIntVar(conf,
ConfVars.LIMIT_PARTITION_REQUEST);
if (partitionLimit > -1 && numPartitions > partitionLimit) {
String configName = ConfVars.LIMIT_PARTITION_REQUEST.toString();
throw new
MetaException(String.format(PARTITION_NUMBER_EXCEED_LIMIT_MSG, numPartitions,
tblName, partitionLimit, configName));
}
}
````
1. can we reuse `if (needCheckPartitionLimit(partitionLimit) {...}`
to be honest I don't really get what is the purpose of that check
2. where do we limit the fetch size? we throws exception if returned
`numPartitions` > `partitionLimit`?
say request size it 100, LIMIT = 50 and it db we have 1000, we'll return
PARTITION_NUMBER_EXCEED_LIMIT_MSG exception to the end user?
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