[GitHub] [flink] tillrohrmann commented on a change in pull request #9562: [FLINK-13898] Migrate restart stratey config constants to ConfigOptions

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tillrohrmann commented on a change in pull request #9562: [FLINK-13898] Migrate restart stratey config constants to ConfigOptions
URL: https://github.com/apache/flink/pull/9562#discussion_r319759595
 
 

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 File path: flink-core/src/main/java/org/apache/flink/configuration/RestartStrategyOptions.java
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+/*
+ * 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.flink.configuration;
+
+import org.apache.flink.annotation.PublicEvolving;
+import org.apache.flink.annotation.docs.ConfigGroup;
+import org.apache.flink.annotation.docs.ConfigGroups;
+import org.apache.flink.configuration.description.Description;
+
+import static org.apache.flink.configuration.description.LinkElement.link;
+import static org.apache.flink.configuration.description.TextElement.code;
+import static org.apache.flink.configuration.description.TextElement.text;
+
+/**
+ * Config options for restart strategies.
+ */
+@PublicEvolving
+@ConfigGroups(groups = {
+	@ConfigGroup(name = "FixedDelayRestartStrategy", keyPrefix = "restart-strategy.fixed-delay"),
+	@ConfigGroup(name = "FailureRateRestartStrategy", keyPrefix = "restart-strategy.failure-rate")
+})
+public class RestartStrategyOptions {
+
+	public static final ConfigOption<String> RESTART_STRATEGY = ConfigOptions
+		.key("restart-strategy")
+		.noDefaultValue()
+		.withDescription(
+			Description.builder()
+				.text("Defines the restart strategy to use in case of job failures.")
+				.linebreak()
+				.text("Accepted values are:")
+				.list(
+					text("%s, %s, %s: No restart strategy.", code("none"), code("off"), code("disable")),
+					text(
+						"%s, %s: Fixed delay restart strategy. More details can be found %s.",
+						code("fixeddelay"),
+						code("fixed-delay"),
+						link("../dev/task_failure_recovery.html#fixed-delay-restart-strategy", "here")),
+					text(
+						"%s, %s: Failure rate restart strategy. More details can be found %s.",
+						code("failurerate"),
+						code("failure-rate"),
+						link("../dev/task_failure_recovery.html#failure-rate-restart-strategy", "here")),
+					text(
+						"%s: Fully qualified name of %s factory which has has a method %s.",
+						code("org.foobar.MyRestartStrategyFactoryFactory"),
+						code("RestartStrategyFactory"),
+						code("RestartStrategyFactory createFactory(Configuration configuration)"))
+				)
+				.text(
+					"If checkpointing is disabled, the default value is %s. " +
+						"If checkpointing is enabled, the default value is %s with %s restart attempts and '%s' delay.",
+					code("none"),
+					code("fixed-delay"),
+					code("Integer.MAX_VALUE"),
+					code("0 s"))
+				.build());
+
+	public static final ConfigOption<Integer> RESTART_STRATEGY_FIXED_DELAY_ATTEMPTS = ConfigOptions
+		.key("restart-strategy.fixed-delay.attempts")
+		.defaultValue(1)
+		.withDescription(
+			Description.builder()
+				.text(
+					"The number of times that Flink retries the execution before the job is declared as failed if %s has been set to %s.",
+					code(RESTART_STRATEGY.key()),
+					code("fixed-delay"))
+				.build());
+
+	public static final ConfigOption<String> RESTART_STRATEGY_FIXED_DELAY_DELAY = ConfigOptions
+		.key("restart-strategy.fixed-delay.delay")
+		.defaultValue("0 s")
+		.withDescription(
+			Description.builder()
+				.text(
+					"Delay between two consecutive restart attempts if %s has been set to %s. " +
+						"Delaying the retries can be helpful when the program interacts with external systems where " +
+						"for example connections or pending transactions should reach a timeout before re-execution " +
+						"is attempted. It can be specified using Scala's %s notation: \"1 min\", \"20 s\"",
+					code(RESTART_STRATEGY.key()),
+					code("fixed-delay"),
+					code("FiniteDuration"))
+				.build());
+
+	public static final ConfigOption<Integer> RESTART_STRATEGY_FAILURE_RATE_MAX_FAILURES_PER_INTERVAL = ConfigOptions
+		.key("restart-strategy.failure-rate.max-failures-per-interval")
+		.defaultValue(1)
+		.withDescription(
+			Description.builder()
+				.text(
+					"Maximum number of restarts in given time interval before failing a job if %s has been set to %s.",
+					code(RESTART_STRATEGY.key()),
+					code("failure-rate"))
+				.build());
+
+	public static final ConfigOption<String> RESTART_STRATEGY_FAILURE_RATE_FAILURE_RATE_INTERVAL = ConfigOptions
+		.key("restart-strategy.failure-rate.failure-rate-interval")
+		.defaultValue("1 min")
+		.withDescription(
+			Description.builder()
+				.text(
+					"Time interval for measuring failure rate if %s has been set to %s. " +
+						"It can be specified using Scala's %s notation: \"1 min\", \"20 s\"",
+					code(RESTART_STRATEGY.key()),
+					code("failure-rate"),
+					code("FiniteDuration"))
+				.build());
+
+	public static final ConfigOption<String> RESTART_STRATEGY_FAILURE_RATE_DELAY = ConfigOptions
+		.key("restart-strategy.failure-rate.delay")
+		.defaultValue(AkkaOptions.ASK_TIMEOUT.defaultValue())
 
 Review comment:
   Please take a look at #9552 where this has been corrected. The intention of this PR is to simply migrate the existing options.

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