org.apache.paimon.flink.sink.AdaptiveParallelism Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
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package org.apache.paimon.flink.sink;
import org.apache.flink.api.common.ExecutionConfig;
import org.apache.flink.configuration.BatchExecutionOptions;
import org.apache.flink.configuration.ReadableConfig;
import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
/** Get adaptive config from Flink. Only work for Flink 1.17+. */
public class AdaptiveParallelism {
public static boolean isEnabled(StreamExecutionEnvironment env) {
return env.getConfiguration().get(BatchExecutionOptions.ADAPTIVE_AUTO_PARALLELISM_ENABLED);
}
/**
* Get default max parallelism of AdaptiveBatchScheduler of Flink. See {@link
* org.apache.flink.runtime.scheduler.adaptivebatch.AdaptiveBatchSchedulerFactory#getDefaultMaxParallelism(Configuration,
* ExecutionConfig)}.
*/
public static int getDefaultMaxParallelism(
ReadableConfig configuration, ExecutionConfig executionConfig) {
return configuration
.getOptional(BatchExecutionOptions.ADAPTIVE_AUTO_PARALLELISM_MAX_PARALLELISM)
.orElse(
executionConfig.getParallelism() == ExecutionConfig.PARALLELISM_DEFAULT
? BatchExecutionOptions.ADAPTIVE_AUTO_PARALLELISM_MAX_PARALLELISM
.defaultValue()
: executionConfig.getParallelism());
}
}
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