pvary commented on code in PR #10484: URL: https://github.com/apache/iceberg/pull/10484#discussion_r1639280951
########## flink/v1.19/flink/src/main/java/org/apache/iceberg/flink/maintenance/operator/TriggerManager.java: ########## @@ -0,0 +1,295 @@ +/* + * 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.util.List; +import java.util.stream.Collectors; +import org.apache.flink.annotation.Internal; +import org.apache.flink.api.common.state.ListState; +import org.apache.flink.api.common.state.ListStateDescriptor; +import org.apache.flink.api.common.state.ValueState; +import org.apache.flink.api.common.state.ValueStateDescriptor; +import org.apache.flink.api.common.typeinfo.TypeInformation; +import org.apache.flink.api.common.typeinfo.Types; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.metrics.Counter; +import org.apache.flink.runtime.state.FunctionInitializationContext; +import org.apache.flink.runtime.state.FunctionSnapshotContext; +import org.apache.flink.streaming.api.TimerService; +import org.apache.flink.streaming.api.checkpoint.CheckpointedFunction; +import org.apache.flink.streaming.api.functions.KeyedProcessFunction; +import org.apache.flink.util.Collector; +import org.apache.iceberg.SerializableTable; +import org.apache.iceberg.flink.TableLoader; +import org.apache.iceberg.relocated.com.google.common.base.Preconditions; +import org.apache.iceberg.relocated.com.google.common.collect.Lists; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** . */ +@Internal +class TriggerManager extends KeyedProcessFunction<Boolean, TableChange, Trigger> + implements CheckpointedFunction { + private static final Logger LOG = LoggerFactory.getLogger(TriggerManager.class); + + private final TableLoader tableLoader; + private final TriggerLockFactory lockFactory; + private final List<String> taskNames; + private final List<TriggerEvaluator> evaluators; + private final long minFireDelayMs; + private final long lockCheckDelayMs; + private final boolean clearLocks; + private transient Counter rateLimiterTriggeredCounter; + private transient Counter concurrentRunTriggeredCounter; + private transient Counter nothingToTriggerCounter; + private transient List<Counter> triggerCounters; + private transient ValueState<Long> nextEvaluationTime; + private transient ListState<TableChange> accumulatedChanges; + private transient ListState<Long> lastTriggerTimes; + private transient TriggerLockFactory.Lock lock; + private transient TriggerLockFactory.Lock recoveryLock; + private transient boolean isCleanUp = false; + private transient boolean inited = false; + private transient int startsFrom = 0; + + TriggerManager( + TableLoader tableLoader, + TriggerLockFactory lockFactory, + List<String> taskNames, + List<TriggerEvaluator> evaluators, + long minFireDelayMs, + long lockCheckDelayMs, + boolean clearLocks) { + Preconditions.checkNotNull(tableLoader, "Table loader should no be null"); + Preconditions.checkNotNull(lockFactory, "Lock factory should no be null"); + Preconditions.checkArgument( + evaluators != null && !evaluators.isEmpty(), "Evaluators should not be empty"); + Preconditions.checkArgument( + taskNames.size() == evaluators.size(), "Provide a name and evaluator for all of the tasks"); Review Comment: These are the specific Maintenance Tasks scheduled by the user. It could be one or more of the following: - DataFileRewrite - ManifestFileRewrite - ExpireSnapshots - DeleteOrphanFiles We can add more later, if we need/want. Also, the user might decide to schedule a given type multiple times with different configurations, like RewriteDataFiles with only small file compaction on every 10 commits, but a full table rewrite on every day. -- 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
