ChannelDictionary warning on shutdown in EMAJ

Steven McCoy
Steven McCoy
in EMA

Using the example shutdown sequence of just calling consumer.uninitialize(); the following warning messages are emitted. How do I disable them?

2016-05-09 16:53:29,464 WARN  [main] OmmConsumerImpl(DictionaryCallbackClient.java:1142): loggerMsg
    ClientName: ChannelDictionary
    Severity: Warning
    Text:    RDMDictionary stream was closed with status message
	streamId 3
	Reason State: Closed/Suspect/None - text: "channel down."
loggerMsgEnd

2016-05-09 16:53:29,465 WARN  [main] OmmConsumerImpl(DictionaryCallbackClient.java:1142): loggerMsg
    ClientName: ChannelDictionary
    Severity: Warning
    Text:    RDMDictionary stream was closed with status message
	streamId 4
	Reason State: Closed/Suspect/None - text: "channel down."
loggerMsgEnd
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Best Answer

  • Jirapongse
    Jirapongse
    Answer ✓

    Refer to EMA Java Developers Guide, the EMA Java uses the SLF4J logging API, in which you can have the underlying logging backend be the Java standard logg utility package (java.util.logging), log4j, or other logger adapters which implement the SLF4J logging interface.

    I found one method that can be used to configure the logging.

    1. Create a logging.properties file in the working directory. Its content is:

    #This file contains log configuration for java logging API.
    # Level mapping between jdk and slf4j logging
    # jdk.util.logging SLF4J
    # FINEST -> ALL
    # FINEST -> DEBUG
    # FINEST -> TRACE 
    # INFO -> INFO
    # WARNING -> WARN
    # SEVERE -> ERROR
    #.level=ALL
    #handlers=java.util.logging.FileHandler, java.util.logging.ConsoleHandler
    handlers=java.util.logging.ConsoleHandler
    java.util.logging.ConsoleHandler.level=SEVERE
    java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter
    #java.util.logging.FileHandler.level=ALL
    #java.util.logging.FileHandler.pattern=emaj.log
    # Write 100000 bytes before rotating this file
    #java.util.logging.FileHandler.limit=50000000
    # Number of rotating files to be used
    #java.util.logging.FileHandler.count=20
    #java.util.logging.FileHandler.formatter=java.util.logging.SimpleFormatter
    # Format timestamp as date/time with millisecond
    java.util.logging.SimpleFormatter.format=%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s %2$s%n%5$s

    2. Set VM arguments to use this file: -Djava.util.logging.config.file=logging.properties

    3. I have set ConsoleHandler.level to SEVERE so it will not log the WARNING logs

    Otherwise, you can use FileHandler instead of ConsoleHandler to log messages to files instead.

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