[FLUME-1156] If config file has empty sources, then throws NPE

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.0
• Fix Version/s: 1.2.0
• Component/s: Configuration
• Assignee: Hari Shreedharan
• Reporter: Will McQueen
• Created: 26/Apr/12 19:10
• Updated: 27/Apr/12 18:26
• Resolved: 27/Apr/12 17:02

Description

Config file used:

agent.channels = c1
agent.sources =
agent.sinks = k1

agent.channels.c1.type = MEMORY

agent.sources.r1.channels = c1
agent.sources.r1.type = SEQ

agent.sinks.k1.channels = c1
agent.sinks.k1.type = NULL

2012-04-26 12:08:52,382 (conf-file-poller-0) [ERROR - org.apache.flume.conf.file.AbstractFileConfigurationProvider$FileWatcherRunnable.run(AbstractFileConfigurationProvider.java:205)] Failed to load configuration data. Exception follows.
java.lang.NullPointerException
at org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.validateSources(FlumeConfiguration.java:475)
at org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.isValid(FlumeConfiguration.java:316)
at org.apache.flume.conf.FlumeConfiguration$AgentConfiguration.access$000(FlumeConfiguration.java:205)
at org.apache.flume.conf.FlumeConfiguration.validateConfiguration(FlumeConfiguration.java:119)
at org.apache.flume.conf.FlumeConfiguration.<init>(FlumeConfiguration.java:101)
at org.apache.flume.conf.properties.PropertiesFileConfigurationProvider.load(PropertiesFileConfigurationProvider.java:214)
at org.apache.flume.conf.file.AbstractFileConfigurationProvider.doLoad(AbstractFileConfigurationProvider.java:124)
at org.apache.flume.conf.file.AbstractFileConfigurationProvider.access$300(AbstractFileConfigurationProvider.java:38)
at org.apache.flume.conf.file.AbstractFileConfigurationProvider$FileWatcherRunnable.run(AbstractFileConfigurationProvider.java:203)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)