Sandor Molnar created KNOX-3022:
-----------------------------------
Summary: Possible NPE at CM cluster configuration monitor startup
due to cluster configuration file issues
Key: KNOX-3022
URL: https://issues.apache.org/jira/browse/KNOX-3022
Project: Apache Knox
Issue Type: Bug
Components: cm-discovery
Affects Versions: 1.6.0, 2.0.0
Reporter: Sandor Molnar
Assignee: Sandor Molnar
Fix For: 2.1.0
In KNOX-2689, we handled the case where
{{$KNOX_DATA_DIR/cm-clusters/hCM_HOST_7183-Cluster_1.conf}} file was empty.
However, it might be the same for the
{{$KNOX_DATA_DIR/cm-clusters/hCM_HOST_7183-Cluster_1.ver}} file where
previously persisted cluster configuration (with service/role details) is
stored.
If that file is empty, the following error is thrown:
{noformat}
2024-03-18 19:01:34,840 ERROR discovery.cm
(ClusterConfigurationFileStore.java:get(106)) - Failed to load persisted
service configuration data for cluster monitor CM :
com.fasterxml.jackson.databind.exc.MismatchedInputException: No content to map
due to end-of-input
at [Source: (sun.nio.ch.ChannelInputStream); line: 1, column: 0]
2024-03-18 19:01:34,841 FATAL knox.gateway (GatewayServer.java:main(193)) -
Failed to start gateway: java.lang.NullPointerException
java.lang.NullPointerException
at
org.apache.knox.gateway.topology.discovery.cm.monitor.ClouderaManagerClusterConfigurationMonitor.loadServiceConfiguration(ClouderaManagerClusterConfigurationMonitor.java:196)
at
org.apache.knox.gateway.topology.discovery.cm.monitor.ClouderaManagerClusterConfigurationMonitor.<init>(ClouderaManagerClusterConfigurationMonitor.java:103)
at
org.apache.knox.gateway.topology.discovery.cm.monitor.ClouderaManagerClusterConfigurationMonitorProvider.newInstance(ClouderaManagerClusterConfigurationMonitorProvider.java:35)
at
org.apache.knox.gateway.services.topology.impl.DefaultClusterConfigurationMonitorService.init(DefaultClusterConfigurationMonitorService.java:44)
at
org.apache.knox.gateway.services.DefaultGatewayServices.init(DefaultGatewayServices.java:137)
at org.apache.knox.gateway.GatewayServer.main(GatewayServer.java:184)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.knox.gateway.launcher.Invoker.invokeMainMethod(Invoker.java:68)
at org.apache.knox.gateway.launcher.Invoker.invoke(Invoker.java:39)
at org.apache.knox.gateway.launcher.Command.run(Command.java:99)
at org.apache.knox.gateway.launcher.Launcher.run(Launcher.java:75)
at org.apache.knox.gateway.launcher.Launcher.main(Launcher.java:52)
{noformat}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
