Sidharta Seethana created SLIDER-1121: -----------------------------------------
Summary: Slider AM has a race condition in port allocation Key: SLIDER-1121 URL: https://issues.apache.org/jira/browse/SLIDER-1121 Project: Slider Issue Type: Bug Reporter: Sidharta Seethana Priority: Critical /cc [~vinodkv], [~gsaha] When two (or more) slider AMs are launched on a given node, it looks like both AMs could attempt to bind to the same port, resulting in AM crash(es). See below for an example. {code} 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Cluster provider type is agent 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: RM is at y016.boo.hoo.com/172.26.32.116:8030 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: AM for ID 26 16/05/13 02:34:29 INFO impl.NMClientAsyncImpl: Upper bound of the thread pool size is 500 16/05/13 02:34:29 INFO impl.ContainerManagementProtocolProxy: yarn.client.max-cached-nodemanagers-proxies : 0 16/05/13 02:34:29 INFO ipc.CallQueueManager: Using callQueue class java.util.concurrent.LinkedBlockingQueue 16/05/13 02:34:29 INFO ipc.Server: Starting Socket Reader #1 for port 1025 16/05/13 02:34:29 INFO ipc.Server: IPC Server Responder: starting 16/05/13 02:34:29 INFO ipc.Server: IPC Server listener on 1025: starting 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: AM Server is listening at y053.boo.hoo.com:1025 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Starting Yarn registry 16/05/13 02:34:29 INFO imps.CuratorFrameworkImpl: Starting 16/05/13 02:34:29 INFO zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT 16/05/13 02:34:29 INFO zookeeper.ZooKeeper: Client environment:host.name=y053.boo.hoo.com 16/05/13 02:34:29 INFO zookeeper.ZooKeeper: Client environment:java.version=1.8.0_60 16/05/13 02:34:29 INFO zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation 16/05/13 02:34:29 INFO zookeeper.ZooKeeper: Client environment:java.home=/usr/jdk64/jdk1.8.0_60/jre {code} {code} at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:914) ... 10 more 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Triggering shutdown of the AM: stop: exit code = 56, FAILED: Port in use: 0.0.0.0:1025; 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Process has exited with exit code 0 mapped to 0 -ignoring 16/05/13 02:34:29 INFO workflow.WorkflowCompositeService: Child service completed Service RoleLaunchService in state RoleLaunchService: STOPPED 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Setting stopInitiated flag to true 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Container release timeout in millis = 0 16/05/13 02:34:29 INFO state.AppState: Releasing 1 containers 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Application completed. Signalling finish to RM 16/05/13 02:34:29 INFO appmaster.SliderAppMaster: Unregistering AM status=FAILED message=Port in use: 0.0.0.0:1025 16/05/13 02:34:29 INFO impl.AMRMClientImpl: Waiting for application to be successfully unregistered. Exception: Port in use: 0.0.0.0:1025 16/05/13 02:34:29 ERROR main.ServiceLauncher: Exception: Port in use: 0.0.0.0:1025 java.net.BindException: Port in use: 0.0.0.0:1025 at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:920) at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:856) at org.apache.hadoop.yarn.webapp.WebApps$Builder.start(WebApps.java:274) at org.apache.slider.server.appmaster.SliderAppMaster.deployWebApplication(SliderAppMaster.java:1106) at org.apache.slider.server.appmaster.SliderAppMaster.createAndRunCluster(SliderAppMaster.java:992) at org.apache.slider.server.appmaster.SliderAppMaster.runService(SliderAppMaster.java:580) at org.apache.slider.core.main.ServiceLauncher.launchService(ServiceLauncher.java:188) at org.apache.slider.core.main.ServiceLauncher.launchServiceRobustly(ServiceLauncher.java:475) at org.apache.slider.core.main.ServiceLauncher.launchServiceAndExit(ServiceLauncher.java:403) {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)