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[cdc-base] Close idle readers when snapshot finished (apache#2202)
* [cdc-base] Close idle readers when snapshot finished
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43 changes: 43 additions & 0 deletions
43
flink-cdc-base/src/main/java/com/ververica/cdc/connectors/base/utils/EnvironmentUtils.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * Copyright 2022 Ververica Inc. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
|
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| package com.ververica.cdc.connectors.base.utils; | ||
|
|
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| import org.apache.flink.runtime.util.EnvironmentInformation; | ||
|
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| /** Utilities for environment information at runtime. */ | ||
| public class EnvironmentUtils { | ||
|
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| private EnvironmentUtils() {} | ||
|
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| private static final VersionComparable FLINK_1_14 = VersionComparable.fromVersionString("1.14"); | ||
|
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| public static VersionComparable runtimeFlinkVersion() { | ||
| return VersionComparable.fromVersionString(EnvironmentInformation.getVersion()); | ||
| } | ||
|
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| public static boolean supportCheckpointsAfterTasksFinished() { | ||
| return runtimeFlinkVersion().newerThanOrEqualTo(FLINK_1_14); | ||
| } | ||
|
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| public static void checkSupportCheckpointsAfterTasksFinished(boolean closeIdleReaders) { | ||
| if (closeIdleReaders && !supportCheckpointsAfterTasksFinished()) { | ||
| throw new UnsupportedOperationException( | ||
| "The flink version is required to be greater than or equal to 1.14 when 'execution.checkpointing.checkpoints-after-tasks-finish.enabled' is set to true. But the current version is " | ||
| + runtimeFlinkVersion()); | ||
| } | ||
| } | ||
| } |
107 changes: 107 additions & 0 deletions
107
flink-cdc-base/src/main/java/com/ververica/cdc/connectors/base/utils/VersionComparable.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| /* | ||
| * Copyright 2022 Ververica Inc. | ||
| * | ||
| * Licensed 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. | ||
| */ | ||
|
|
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| package com.ververica.cdc.connectors.base.utils; | ||
|
|
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| /** Used to compare version numbers at runtime. */ | ||
| public class VersionComparable implements Comparable<VersionComparable> { | ||
|
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| private int majorVersion; | ||
| private int minorVersion; | ||
| private int patchVersion; | ||
| private String versionString; | ||
|
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| private VersionComparable(String versionString) { | ||
| this.versionString = versionString; | ||
| try { | ||
| int pos = versionString.indexOf('-'); | ||
| String numberPart = versionString; | ||
| if (pos > 0) { | ||
| numberPart = versionString.substring(0, pos); | ||
| } | ||
|
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| String[] versions = numberPart.split("\\."); | ||
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| this.majorVersion = Integer.parseInt(versions[0]); | ||
| this.minorVersion = Integer.parseInt(versions[1]); | ||
| if (versions.length == 3) { | ||
| this.patchVersion = Integer.parseInt(versions[2]); | ||
| } | ||
| } catch (Exception e) { | ||
| throw new IllegalArgumentException( | ||
| String.format("Can not recognize version %s.", versionString)); | ||
| } | ||
| } | ||
|
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| public int getMajorVersion() { | ||
| return majorVersion; | ||
| } | ||
|
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| public int getMinorVersion() { | ||
| return minorVersion; | ||
| } | ||
|
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| public int getPatchVersion() { | ||
| return patchVersion; | ||
| } | ||
|
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| public static VersionComparable fromVersionString(String versionString) { | ||
| return new VersionComparable(versionString); | ||
| } | ||
|
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| @Override | ||
| public int compareTo(VersionComparable version) { | ||
| if (equalTo(version)) { | ||
| return 0; | ||
| } else if (newerThan(version)) { | ||
| return 1; | ||
| } else { | ||
| return -1; | ||
| } | ||
| } | ||
|
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| public boolean equalTo(VersionComparable version) { | ||
| return majorVersion == version.majorVersion | ||
| && minorVersion == version.minorVersion | ||
| && patchVersion == version.patchVersion; | ||
| } | ||
|
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| public boolean newerThan(VersionComparable version) { | ||
| if (majorVersion <= version.majorVersion) { | ||
| if (majorVersion < version.majorVersion) { | ||
| return false; | ||
| } else { | ||
| if (minorVersion <= version.minorVersion) { | ||
| if (minorVersion < version.patchVersion) { | ||
| return false; | ||
| } else { | ||
| return patchVersion > version.patchVersion; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return true; | ||
| } | ||
|
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| public boolean newerThanOrEqualTo(VersionComparable version) { | ||
| return newerThan(version) || equalTo(version); | ||
| } | ||
|
|
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| @Override | ||
| public String toString() { | ||
| return versionString; | ||
| } | ||
| } |
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