pvary commented on code in PR #10484: URL: https://github.com/apache/iceberg/pull/10484#discussion_r1724745652
########## flink/v1.19/flink/src/main/java/org/apache/iceberg/flink/maintenance/operator/JdbcLockFactory.java: ########## @@ -0,0 +1,246 @@ +/* + * 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.iceberg.flink.maintenance.operator; + +import java.io.IOException; +import java.sql.DatabaseMetaData; +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.sql.SQLNonTransientConnectionException; +import java.sql.SQLTimeoutException; +import java.sql.SQLTransientConnectionException; +import java.util.Map; +import java.util.UUID; +import org.apache.iceberg.jdbc.JdbcClientPool; +import org.apache.iceberg.jdbc.UncheckedInterruptedException; +import org.apache.iceberg.jdbc.UncheckedSQLException; +import org.apache.iceberg.relocated.com.google.common.annotations.VisibleForTesting; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.util.PropertyUtil; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class JdbcLockFactory implements TriggerLockFactory { + private static final Logger LOG = LoggerFactory.getLogger(JdbcLockFactory.class); + private static final String INIT_LOCK_TABLES_PROPERTY = "maintenance.lock.jdbc.init-lock-tables"; + private static final String LOCK_TABLE_NAME = "maintenance_lock"; + private static final int MAX_PREFIX_LENGTH = 100; + private static final String CREATE_LOCK_TABLE_SQL = + "CREATE TABLE " + + LOCK_TABLE_NAME + + "(LOCK_TYPE CHAR(1) NOT NULL, ISSUER VARCHAR(" + + MAX_PREFIX_LENGTH Review Comment: I think that would be misleading. The entityId is more-or-less descriptive, but the ownerId is different, as this lock doesn't really care about the ownership at all. I opted for renaming them differently, which might be better: - LOCK_TYPE - LOCK_ID - previously `ISSUER` - INSTANCE_ID - previously `LOCK_ID` -- 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. To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
