[logback-user] Elongated system startup-time because of Logback configuration

[Ceki Gulcu]

On my machine it takes 900 milliseconds to parse and run your config 
file. It takes about 500 millis to parse and empty config file. So while 
900 millis is not particularly fast, it's still much faster than the 45 
seconds you report. Is it possible that the config file is located on 
the network (and the network suffers from DNS timeouts)?

On 23.11.2010 08:39, Nikhil Diwan wrote:
>
>> You still didn't mention whether there was any improvement.
> Yes there is improvement in start-up time, if there is no logging using logabck
> in my system.
>>
>> Loggers don't require their own thread and don't create one. 25 loggers
> shouldn't be a big deal.
>> Can you send you logback.xml?
>
> I am using "logbafck.groovy", see below:-
>
> import ch.qos.logback.classic.encoder.PatternLayoutEncoder
> import ch.qos.logback.core.FileAppender
> import ch.qos.logback.core.rolling.FixedWindowRollingPolicy
> import ch.qos.logback.core.rolling.RollingFileAppender
> import ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy
>
> import static ch.qos.logback.classic.Level.DEBUG
> import static ch.qos.logback.classic.Level.INFO
>
> scan('60 seconds')
>
> // Defining flag on OS type
> def isWindows = System.getenv('OS').contains('Windows')
>
> // Declaring default location for logging
> def LOG_HOME = "C:/dvs/client/logs"
>
> // Defining log file location for Non-Windows OS
> if (!isWindows) {
>      LOG_HOME = "/dvs/client/logs"
> }
>
> def filePatternFormat = "%d %-5level %logger - %msg%n"
> def serviceList = [ "Service_1", "Service_2", "Service_3", "Service_4",
> "Service_5", "Service_6",
>                      "Service_7", "Service_8", "Service_9", "Service_10",
> "Service_11",
>                      "Service_12", "Service_13", "Service_14", "Service_15",
> "Service_16",
>                      "Service_17", "Service_18", "Service_19", "Service_20",
>                      "Service_21", "Service_22", "Service_23", "Service_24",
>                      "Service_25", "Service_26", "Service_27" ]
>
> // Defining appender for root
> appender('FILE', FileAppender) {
>      file = "${LOG_HOME}/root.log"
>      encoder(PatternLayoutEncoder) {
>          pattern = filePatternFormat
>    }
> }
>
> // Creating appenders for all services
> for (service in serviceList) {
>      appender("${service}", RollingFileAppender) {
>          file = "${LOG_HOME}/${service}/${service}.log"
>          rollingPolicy(FixedWindowRollingPolicy) {
>              fileNamePattern = "${LOG_HOME}/${service}/${service}.%i.log.zip"
>              minIndex = 1
>              maxIndex = 10
>          }
>          triggeringPolicy(SizeBasedTriggeringPolicy) {
>              maxFileSize = "100MB"
>          }
>          encoder(PatternLayoutEncoder) {
>              pattern = filePatternFormat
>          }
>      }
> }
>
> // Defining logger per service
> logger 'Control.Service_1', INFO, ['Service_1'], false
> logger 'Control.Service_2', INFO, ['Service_2'], false
> logger 'Build_Services.Service_3', INFO, ['Service_3'], false
> logger 'Build_Services.Service_4', INFO, ['Service_4'], false
> logger 'Build_Services.Service_5', INFO, ['Service_5'], false
> logger 'Build_Services.Service_6', INFO, ['Service_6'], false
> logger 'Build_Services.Service_7', INFO, ['Service_7'], false
> logger 'Build_Services.Service_8', INFO, ['Service_8'], false
> logger 'Build_Services.Service_9', INFO, ['Service_9'], false
> logger 'Build_Services.Service_10', INFO, ['Service_10'], false
> logger 'Build_Services.Service_11', INFO, ['Service_11'], false
> logger 'Build_Services.Service_12', INFO, ['Service_12'], false
> logger 'Build_Services.Service_13', INFO, ['Service_13'], false
> logger 'Build_Services.Service_14', INFO, ['Service_14'], false
> logger 'Build_Services.Service_15', INFO, ['Service_15'], false
> logger 'Regression_Services.Service_16', INFO, ['Service_16'], false
> logger 'Regression_Services.Service_17', INFO, ['Service_17'], false
> logger 'Regression_Services.Service_18', INFO, ['Service_18'], false
> logger 'Regression_Services.Service_19', INFO, ['Service_19'], false
> logger 'Regression_Services.Service_20', INFO, ['Service_20'], false
> logger 'Regression_Services.Service_21', INFO, ['Service_21'], false
> logger 'Regression_Services.Service_22', INFO, ['Service_22'], false
> logger 'Regression_Services.Service_23', INFO, ['Service_23'], false
> logger 'Regression_Services.Service_24', INFO, ['Service_24'], false
> logger 'Regression_Services.Service_25', INFO, ['Service_25'], false
> logger 'Regression_Services.Service_26', INFO, ['Service_26'], false
> logger 'Regression_Services.Service_27', INFO, ['Service_27'], false
>
> root DEBUG, ['FILE']