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Posted to commits@kylin.apache.org by ni...@apache.org on 2019/08/15 08:48:04 UTC
[kylin] branch master updated: KYLIN-4131 Fix Broadcaster memory
leak
This is an automated email from the ASF dual-hosted git repository.
nic pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/kylin.git
The following commit(s) were added to refs/heads/master by this push:
new 1942729 KYLIN-4131 Fix Broadcaster memory leak
1942729 is described below
commit 194272986e6dec96a78f1228d27e0208a68a268b
Author: chao long <wa...@qq.com>
AuthorDate: Mon Aug 12 23:15:11 2019 +0800
KYLIN-4131 Fix Broadcaster memory leak
---
.../java/org/apache/kylin/common/Closeable.java | 23 ++++++++++++++++++++++
.../java/org/apache/kylin/common/KylinConfig.java | 15 ++++++++++++++
.../kylin/metadata/cachesync/Broadcaster.java | 12 ++++++++---
3 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/core-common/src/main/java/org/apache/kylin/common/Closeable.java b/core-common/src/main/java/org/apache/kylin/common/Closeable.java
new file mode 100644
index 0000000..e5e3de6
--- /dev/null
+++ b/core-common/src/main/java/org/apache/kylin/common/Closeable.java
@@ -0,0 +1,23 @@
+/*
+ * 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.kylin.common;
+
+public interface Closeable {
+ void close();
+}
diff --git a/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java b/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java
index f7c6033..ffa666f 100644
--- a/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java
+++ b/core-common/src/main/java/org/apache/kylin/common/KylinConfig.java
@@ -479,7 +479,22 @@ public class KylinConfig extends KylinConfigBase {
return;
}
+ Map<Class, Closeable> closableManagers = new ConcurrentHashMap<>();
+
+ managersCache.forEach((key, value) -> {
+ if (value instanceof Closeable) {
+ closableManagers.put(key, (Closeable) value);
+ }
+ });
+
managersCache.clear();
+
+ if (closableManagers.size() > 0) {
+ closableManagers.forEach((key, value) -> {
+ logger.info("Close manager {}", key.getSimpleName());
+ value.close();
+ });
+ }
}
public Properties exportToProperties() {
diff --git a/core-metadata/src/main/java/org/apache/kylin/metadata/cachesync/Broadcaster.java b/core-metadata/src/main/java/org/apache/kylin/metadata/cachesync/Broadcaster.java
index 834401c..7e6ee7c 100644
--- a/core-metadata/src/main/java/org/apache/kylin/metadata/cachesync/Broadcaster.java
+++ b/core-metadata/src/main/java/org/apache/kylin/metadata/cachesync/Broadcaster.java
@@ -33,6 +33,7 @@ import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.commons.lang.StringUtils;
+import org.apache.kylin.common.Closeable;
import org.apache.kylin.common.KylinConfig;
import org.apache.kylin.common.restclient.RestClient;
import org.apache.kylin.common.util.ClassUtil;
@@ -57,7 +58,7 @@ import com.google.common.collect.Maps;
* - on all servers, model listener is invoked, reload the model, and notify a "project_schema" update event
* - all listeners respond to the "project_schema" update -- reload cube desc, clear project L2 cache, clear calcite data source etc
*/
-public class Broadcaster {
+public class Broadcaster implements Closeable {
private static final Logger logger = LoggerFactory.getLogger(Broadcaster.class);
@@ -153,6 +154,11 @@ public class Broadcaster {
});
}
+ @Override
+ public void close() {
+ stopAnnounce();
+ }
+
private SyncErrorHandler getSyncErrorHandler(KylinConfig config) {
String clzName = config.getCacheSyncErrorHandler();
if (StringUtils.isEmpty(clzName)) {
@@ -166,8 +172,8 @@ public class Broadcaster {
}
public void stopAnnounce() {
- announceThreadPool.shutdown();
- announceMainLoop.shutdown();
+ announceThreadPool.shutdownNow();
+ announceMainLoop.shutdownNow();
}
// static listener survives cache wipe and goes after normal listeners