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Process - Interview Questions and Answers for 'Dell' - 2 question(s) found
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Q1.
Solve the producer and consumer problem
Operating System
This question was recently asked at 'Dell'.This question is still unanswered. Can you please provide an answer.
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 producer consumer problem  multi-process synchronization problem
Asked in 1 Companies
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Q2.
Explain debugging
Process
This question was recently asked at 'Adella software'.This question is still unanswered. Can you please provide an answer.
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 debug
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basic
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Related Questions
How would you go about debugging a NullPointerException?
How to perform Maven Build and show Debug Information ?
In following log4j configuration file, How should we change the logging level to WARN
<Configuration status="DEBUG">
<Appenders>
<RollingFile name="File" fileName="logs/xyz.log" filePattern="logs/xyz-%d{MM-dd-yyyy}.log.gz">
<TimeBasedTriggeringPolicy />
</RollingFile>
</Appenders>
<Loggers>
<Root level="DEBUG">
<AppenderRef ref="File" />
</Root>
</Loggers>
</Configuration>
in the following log4j config file, How should we change the file name and format
<Configuration status="DEBUG">
<Appenders>
<RollingFile name="File" fileName="logs/xyz.log" filePattern="logs/xyz-%d{MM-dd-yyyy}.log.gz">
<TimeBasedTriggeringPolicy />
</RollingFile>
</Appenders>
<Loggers>
<Root level="DEBUG">
<AppenderRef ref="File" />
</Root>
</Loggers>
</Configuration>
In the following log4j config, What if we don't need rolling logs
<Configuration status="DEBUG">
<Appenders>
<RollingFile name="File" fileName="logs/xyz.log" filePattern="logs/xyz-%d{MM-dd-yyyy}.log.gz">
<TimeBasedTriggeringPolicy />
</RollingFile>
</Appenders>
<Loggers>
<Root level="DEBUG">
<AppenderRef ref="File" />
</Root>
</Loggers>
</Configuration>
Can you organize following Log4j levels in hierarchy ?
WARN, DEBUG,INFO, ERROR
What is the difference between INFO and DEBUG logging levels ?
What is the difference between DEBUG and TRACE logging levels ?
What do you make out of this error
org.hibernate.exception.ConstraintViolationException: could not insert: [<Entity>]
Caused by: java.sql.SQLIntegrityConstraintViolationException: ORA-00001: unique constraint (<Constraint Name>) violated
and how would you go about debugging it ?
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