[HBASE-22169] Open region failed cause memory leak

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.5, 2.1.4
• Fix Version/s: 3.0.0-alpha-1, 2.2.1, 2.1.6
• Hadoop Flags: Reviewed
• Assignee: Bing Xiao
• Reporter: Bing Xiao
• Created: 05/Apr/19 06:22
• Updated: 22/Aug/19 07:18
• Resolved: 01/Jul/19 20:56

Description

In some cases (for example, coprocessor path is wrong) region open failed, MetricsRegionWrapperImpl is already init and not close, cause memory leak;

2019-02-21 15:41:32,929 ERROR [RS_OPEN_REGION-hb-2zedsc3fxjn12dl6u-005:16020-7] regionserver.RegionCoprocessorHost(362): Failed to load coprocessor org.apache.kylin.storage.hbase.cube.v2.coprocessor.endpoint.CubeVisitService
java.lang.IllegalArgumentException: java.net.UnknownHostException: emr-cluster
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:378)
at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:310)
at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:176)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:678)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:619)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2653)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
at org.apache.hadoop.hbase.util.CoprocessorClassLoader.init(CoprocessorClassLoader.java:165)
at org.apache.hadoop.hbase.util.CoprocessorClassLoader.getClassLoader(CoprocessorClassLoader.java:250)
at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.load(CoprocessorHost.java:194)
at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.loadTableCoprocessors(RegionCoprocessorHost.java:352)
at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.<init>(RegionCoprocessorHost.java:240)
at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:749)
at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:657)
at sun.reflect.GeneratedConstructorAccessor13.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.hbase.regionserver.HRegion.newHRegion(HRegion.java:6727)
at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7037)
at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:7009)
at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6965)
at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6916)
at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:362)
at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:129)

 

 

Issue Links

• contains: HBASE-22894 Move testOpenRegionFailedMemoryLeak to dedicated class