[gyrex-dev] New topic in forum Gyrex, called WHY ZOOKEEPER GATE IS DOWN,

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[gyrex-dev] New topic in forum Gyrex, called WHY ZOOKEEPER GATE IS DOWN, by Sean Zhang

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Date: Wed, 6 Jan 2016 06:34:34 -0500 (EST)
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Title: Eclipse Community Forums

Subject: WHY ZOOKEEPER GATE IS DOWN

Author: Sean Zhang

Date: Wed, 06 January 2016 19:34

Firstly, I deployed three servers as a cluster, and it could run properly for about 7 days, and then I would get that the gyrex cannot connect to the zookeeper. The gyrex would report that the zookeeper gate was down. But the zookeeper was alive without any problem.

At the same time, I could get the error in the admin console. Please check the exception in the attached screen shot.
index.php/fa/24508/0/

And I got following exception in the application log:
18:52:59.094 [ZooKeeper Gate Connect Thread-EventThread] ERROR o.e.g.c.internal.zk.ZooKeeperGate - There have been too many connection state changes within the last minute. ZooKeeper session will be expired. [ZooKeeperGate CURRENT Disconnected FLAPPING [State:CONNECTED Timeout:30000 sessionid:0x15207f935c2009e local:/10.104.28.7:58689 remoteserver:zoo1/10.190.140.87:2181 lastZxid:4298815281 xid:80 sent:82 recv:79 queuedpkts:0 pendingresp:1 queuedevents:1]]
18:53:10.007 [ZooKeeper Gate Connect Thread-EventThread] ERROR o.e.g.c.internal.zk.ZooKeeperGate - There have been too many connection state changes within the last minute. ZooKeeper session will be expired. [ZooKeeperGate CURRENT Disconnected FLAPPING [State:CONNECTED Timeout:30000 sessionid:0x15207f935c200a1 local:null remoteserver:null lastZxid:4298815299 xid:132 sent:137 recv:119 queuedpkts:1 pendingresp:0 queuedevents:8]]
18:53:10.159 [app thread - org.eclipse.gyrex.http.jetty.applications.engine.11] ERROR o.e.g.h.i.a.g.HttpGatewayBinding - Error registering application mmlm_httpservice: KeeperException.ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http/applications/mmlm_httpservice/properties
java.lang.IllegalStateException: Error reading application properties for application mmlm_httpservice. KeeperException.ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http/applications/mmlm_httpservice/properties
at org.eclipse.gyrex.http.internal.application.manager.ApplicationManager.getProperties(ApplicationManager.java:186) ~[org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
at org.eclipse.gyrex.http.internal.application.manager.ApplicationRegistration.getInitProperties(ApplicationRegistration.java:218) ~[org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
at org.eclipse.gyrex.http.jetty.internal.app.ApplicationHandler.<init>(ApplicationHandler.java:173) ~[na:na]
at org.eclipse.gyrex.http.jetty.internal.app.UrlRegistry.ensureHandler(UrlRegistry.java:96) ~[na:na]
at org.eclipse.gyrex.http.jetty.internal.app.UrlRegistry.registerIfAbsent(UrlRegistry.java:120) ~[na:na]
at org.eclipse.gyrex.http.internal.application.gateway.HttpGatewayBinding.mountUrlAtGateway(HttpGatewayBinding.java:301) [org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
at org.eclipse.gyrex.http.internal.application.gateway.HttpGatewayBinding.mountAppAtGatway(HttpGatewayBinding.java:262) [org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
at org.eclipse.gyrex.http.internal.application.gateway.HttpGatewayBinding.refreshRegistrations(HttpGatewayBinding.java:332) [org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
at org.eclipse.gyrex.http.internal.application.gateway.HttpGatewayBinding.addingService(HttpGatewayBinding.java:187) [org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
at org.eclipse.gyrex.http.internal.application.gateway.HttpGatewayBinding.addingService(HttpGatewayBinding.java:1) [org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:941) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:1) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:901) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:109) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.framework.BundleContextImpl.dispatchEvent(BundleContextImpl.java:914) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:862) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:801) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:127) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:225) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:464) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:482) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.osgi.internal.framework.BundleContextImpl.registerService(BundleContextImpl.java:998) [org.eclipse.osgi_3.10.101.v20150820-1432.jar:na]
at org.eclipse.gyrex.common.services.BundleServiceHelper.registerService(BundleServiceHelper.java:163) [org.eclipse.gyrex.common_1.3.0.v20140923-0741.jar:na]
at org.eclipse.gyrex.http.jetty.internal.JettyEngineApplication.start(JettyEngineApplication.java:327) [org.eclipse.gyrex.http.jetty_1.2.0.v20140923-0812.jar:na]
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) [org.eclipse.equinox.app_1.3.300.v20150423-1356.jar:na]
at org.eclipse.equinox.internal.app.AnyThreadAppLauncher.run(AnyThreadAppLauncher.java:26) [org.eclipse.equinox.app_1.3.300.v20150423-1356.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_80]
Caused by: org.osgi.service.prefs.BackingStoreException: Error loading node (node /cloud/org.eclipse.gyrex.http/applications/mmlm_httpservice/properties). KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http/applications/mmlm_httpservice/properties
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.createBackingStoreException(ZooKeeperBasedPreferences.java:271) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.preferences.internal.CloudPreferences.createBackingStoreException(CloudPreferences.java:58) ~[org.eclipse.gyrex.preferences_1.2.0.v20140128-0933.jar:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.ensureLoaded(ZooKeeperBasedPreferences.java:395) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.keys(ZooKeeperBasedPreferences.java:621) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.http.internal.application.manager.ApplicationManager.getProperties(ApplicationManager.java:178) ~[org.eclipse.gyrex.http_1.2.0.v20141215-1241.jar:na]
... 30 common frames omitted
Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http/applications/mmlm_httpservice/properties
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) ~[na:na]
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[na:na]
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1041) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperPreferencesService$LoadNode.call(ZooKeeperPreferencesService.java:268) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperPreferencesService$LoadNode.call(ZooKeeperPreferencesService.java:1) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.services.zookeeper.ZooKeeperBasedService$ZooKeeperCallable.call(ZooKeeperBasedService.java:59) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.services.zookeeper.ZooKeeperBasedService.execute(ZooKeeperBasedService.java:249) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperPreferencesService.loadNode(ZooKeeperPreferencesService.java:946) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.ensureLoaded(ZooKeeperBasedPreferences.java:384) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
... 32 common frames omitted
18:53:12.773 [Worker-4] ERROR o.e.gyrex.cloud.internal.CloudState - Unable to set node to online. Node will not be available in cloud. KeeperErrorCode = ConnectionLoss for /gyrex/nodes/online/vm-28-7-ubuntu_4f042295
18:53:14.193 [Worker-5] ERROR o.e.gyrex.cloud.internal.CloudState - Unable to initialize node info. Node will not be available in cloud. KeeperException.ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/nodes/approved/vm-28-7-ubuntu_4f042295
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/nodes/approved/vm-28-7-ubuntu_4f042295
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1151) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.eclipse.gyrex.cloud.internal.zk.ZooKeeperGate.readRecord(ZooKeeperGate.java:833) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.zk.ZooKeeperGate.readRecord(ZooKeeperGate.java:772) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.readApprovedNodeInfo(CloudState.java:526) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.initializeNodeInfo(CloudState.java:496) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.registerWithCloud(CloudState.java:646) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState$RegistrationJob.run(CloudState.java:147) [org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [org.eclipse.core.jobs_3.7.0.v20150330-2103.jar:na]
18:53:15.924 [Worker-0] ERROR o.e.gyrex.cloud.internal.CloudState - Unable to initialize node info. Node will not be available in cloud. KeeperException.ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/nodes/approved/vm-28-7-ubuntu_4f042295
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/nodes/approved/vm-28-7-ubuntu_4f042295
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1151) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.eclipse.gyrex.cloud.internal.zk.ZooKeeperGate.readRecord(ZooKeeperGate.java:833) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.zk.ZooKeeperGate.readRecord(ZooKeeperGate.java:772) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.readApprovedNodeInfo(CloudState.java:526) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.initializeNodeInfo(CloudState.java:496) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.registerWithCloud(CloudState.java:646) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState$RegistrationJob.run(CloudState.java:147) [org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [org.eclipse.core.jobs_3.7.0.v20150330-2103.jar:na]
18:53:15.924 [ZooKeeper Gate Connect Thread-EventThread] ERROR o.e.g.c.internal.zk.ZooKeeperGate - There have been too many connection state changes within the last minute. ZooKeeper session will be expired. [ZooKeeperGate CURRENT Disconnected FLAPPING [State:CONNECTED Timeout:30000 sessionid:0x15207f935c200a6 local:null remoteserver:null lastZxid:4298815315 xid:63 sent:65 recv:58 queuedpkts:1 pendingresp:0 queuedevents:2]]
18:53:20.875 [Worker-1] ERROR o.e.gyrex.cloud.internal.CloudState - Unable to initialize node info. Node will not be available in cloud. KeeperException.ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/nodes/approved/vm-28-7-ubuntu_4f042295
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/nodes/approved/vm-28-7-ubuntu_4f042295
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1151) ~[org.apache.hadoop.zookeeper_3.4.5.v20121214-1350.jar:3.3.1-942149]
at org.eclipse.gyrex.cloud.internal.zk.ZooKeeperGate.readRecord(ZooKeeperGate.java:833) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.zk.ZooKeeperGate.readRecord(ZooKeeperGate.java:772) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.readApprovedNodeInfo(CloudState.java:526) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.initializeNodeInfo(CloudState.java:496) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState.registerWithCloud(CloudState.java:646) ~[org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.gyrex.cloud.internal.CloudState$RegistrationJob.run(CloudState.java:147) [org.eclipse.gyrex.cloud_1.4.0.v20150506-1209.jar:na]
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [org.eclipse.core.jobs_3.7.0.v20150330-2103.jar:na]
18:53:22.499 [ZooKeeper Gate Connect Thread-EventThread] ERROR o.e.g.c.internal.zk.ZooKeeperGate - There have been too many connection state changes within the last minute. ZooKeeper session will be expired. [ZooKeeperGate CURRENT Disconnected FLAPPING [State:CONNECTED Timeout:30000 sessionid:0x15207f935c200a9 local:/10.104.28.7:58703 remoteserver:zoo1/10.190.140.87:2181 lastZxid:4298815328 xid:76 sent:78 recv:73 queuedpkts:0 pendingresp:2 queuedevents:1]]
18:53:22.503 [Worker-0] ERROR o.e.gyrex.cloud.internal.CloudState - Unable to set node to online. Node will not be available in cloud. KeeperErrorCode = ConnectionLoss for /gyrex/nodes/online/vm-28-7-ubuntu_4f042295
18:53:32.105 [ZooKeeper Gate Connect Thread-EventThread] ERROR o.e.g.c.internal.zk.ZooKeeperGate - There have been too many connection state changes within the last minute. ZooKeeper session will be expired. [ZooKeeperGate CURRENT Disconnected FLAPPING [State:CONNECTED Timeout:30000 sessionid:0x15207f935c200ac local:/10.104.28.7:58709 remoteserver:zoo1/10.190.140.87:2181 lastZxid:4298815344 xid:138 sent:142 recv:130 queuedpkts:0 pendingresp:3 queuedevents:6]]
18:53:32.219 [app thread - org.eclipse.gyrex.http.jetty.applications.engine.12] ERROR o.e.g.h.j.i.JettyEngineApplication - Unable to start Jetty. Please check the log files. System will be shutdown.
java.lang.IllegalStateException: Error reading channels from backend store. KeeperException.ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http.jetty/channels
at org.eclipse.gyrex.http.jetty.internal.admin.JettyManagerImpl.getChannels(JettyManagerImpl.java:175) ~[na:na]
at org.eclipse.gyrex.http.jetty.internal.JettyEngineApplication.configureServer(JettyEngineApplication.java:119) ~[na:na]
at org.eclipse.gyrex.http.jetty.internal.JettyEngineApplication.start(JettyEngineApplication.java:312) ~[na:na]
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) [org.eclipse.equinox.app_1.3.300.v20150423-1356.jar:na]
at org.eclipse.equinox.internal.app.AnyThreadAppLauncher.run(AnyThreadAppLauncher.java:26) [org.eclipse.equinox.app_1.3.300.v20150423-1356.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_80]
Caused by: org.osgi.service.prefs.BackingStoreException: Error reading children (node /cloud/org.eclipse.gyrex.http.jetty/channels). Error loading node (node /cloud/org.eclipse.gyrex.http.jetty/channels). KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http.jetty/channels
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.createBackingStoreException(ZooKeeperBasedPreferences.java:271) ~[na:na]
at org.eclipse.gyrex.preferences.internal.CloudPreferences.createBackingStoreException(CloudPreferences.java:58) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.childrenNames(ZooKeeperBasedPreferences.java:247) ~[na:na]
at org.eclipse.gyrex.http.jetty.internal.admin.JettyManagerImpl.getChannels(JettyManagerImpl.java:165) ~[na:na]
... 5 common frames omitted
Caused by: org.osgi.service.prefs.BackingStoreException: Error loading node (node /cloud/org.eclipse.gyrex.http.jetty/channels). KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http.jetty/channels
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.createBackingStoreException(ZooKeeperBasedPreferences.java:271) ~[na:na]
at org.eclipse.gyrex.preferences.internal.CloudPreferences.createBackingStoreException(CloudPreferences.java:58) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.ensureLoaded(ZooKeeperBasedPreferences.java:395) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.childrenNames(ZooKeeperBasedPreferences.java:242) ~[na:na]
... 6 common frames omitted
Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /gyrex/prefs/cloud/org.eclipse.gyrex.http.jetty/channels
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) ~[na:na]
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) ~[na:na]
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1151) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperPreferencesService$RefreshProperties.call(ZooKeeperPreferencesService.java:515) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperPreferencesService$LoadNode.call(ZooKeeperPreferencesService.java:283) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperPreferencesService$LoadNode.call(ZooKeeperPreferencesService.java:1) ~[na:na]
at org.eclipse.gyrex.cloud.services.zookeeper.ZooKeeperBasedService$ZooKeeperCallable.call(ZooKeeperBasedService.java:59) ~[na:na]
at org.eclipse.gyrex.cloud.services.zookeeper.ZooKeeperBasedService.execute(ZooKeeperBasedService.java:249) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperPreferencesService.loadNode(ZooKeeperPreferencesService.java:946) ~[na:na]
at org.eclipse.gyrex.cloud.internal.preferences.ZooKeeperBasedPreferences.ensureLoaded(ZooKeeperBasedPreferences.java:384) ~[na:na]
... 7 common frames omitted

what's the problem occurred in gyrex and zookeeper?

Attachment: gyrex_exception.png
(Size: 7.34KB, Downloaded 0 times)

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