liutang123 commented on a change in pull request #6159:
URL: https://github.com/apache/incubator-doris/pull/6159#discussion_r665517707
##########
File path: fe/fe-core/src/main/java/org/apache/doris/qe/QeProcessorImpl.java
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@@ -79,10 +88,58 @@ public void registerQuery(TUniqueId queryId, QueryInfo
info) throws UserExceptio
}
}
+ public void registerInstances(TUniqueId queryId, Integer instancesNum)
throws UserException {
+ if (!coordinatorMap.containsKey(queryId)) {
+ throw new UserException("query not exists in coordinatorMap:" +
DebugUtil.printId(queryId));
+ }
+ QueryInfo queryInfo = coordinatorMap.get(queryId);
+ if (queryInfo.getConnectContext() != null &&
+
!Strings.isNullOrEmpty(queryInfo.getConnectContext().getQualifiedUser())
+ ) {
+ String user = queryInfo.getConnectContext().getQualifiedUser();
+ long maxQueryInstances =
queryInfo.getConnectContext().getCatalog().getAuth().getMaxQueryInstances(user);
Review comment:
If save `maxQueryInstances` in `ConnectionContext `, we can not change
it after `ConnectionContext` created.
`getMaxQueryInstances` will try to obtain an read lock in PlaoAuth. I think
the cost should be very small, because it is a situation of reading more and
writing less.
However, we can update parameters and disconnect all links to make
parameters take effect.
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