jackjlli commented on a change in pull request #4323: [Controller Separation] Add logic for lead controller resource URL: https://github.com/apache/incubator-pinot/pull/4323#discussion_r313056862
########## File path: pinot-common/src/main/java/org/apache/pinot/common/utils/helix/LeadControllerUtils.java ########## @@ -0,0 +1,111 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.pinot.common.utils.helix; + +import java.util.Map; +import java.util.Set; +import org.apache.helix.model.ExternalView; +import org.apache.helix.model.MasterSlaveSMD; +import org.apache.pinot.common.utils.HashUtil; +import org.apache.pinot.common.utils.StringUtil; + + +public class LeadControllerUtils { + public static final String RESOURCE_ENABLED = "RESOURCE_ENABLED"; + + /** + * Gets hash code for table using murmur2 function, ignores the most significant bit. + * Note: This method CANNOT be changed when lead controller resource is enabled. + * Otherwise it will assign different controller for the same table, which will mess up the controller periodic tasks and realtime segment completion. + * @param rawTableName table name + * @return hash code ignoring the most significant bit. + */ + private static int getHashCodeForTable(String rawTableName) { + return (HashUtil.murmur2(StringUtil.encodeUtf8(rawTableName)) & Integer.MAX_VALUE); Review comment: Done. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
