cloudera-scm-server is dead and pid file exists

[#1]

i am new to CDH ,due to power failure our Hadoop Cluster went down when we start our machine and try to restart cloudera-scm-server for second it shows that the service is started after a second it when we check its status it shows cloudera-scm-server is dead and pid file exists for that i checked /var/log/cloudera-scm-server .out file it gives following error

JAVA_HOME=/usr/lib/jvm/java-7-oracle-cloudera
log4j:ERROR setFile(null,true) call failed.
java.io.FileNotFoundException: /var/log/cloudera-scm-server/cloudera-scm-server.log (Permission denied)
        at java.io.FileOutputStream.open(Native Method)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:221)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:142)
        at org.apache.log4j.FileAppender.setFile(FileAppender.java:294)
        at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:207)
        at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:165)
        at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:307)
        at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:172)
        at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:104)
        at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:809)
        at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:735)
        at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:615)
        at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:502)
        at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:547)
        at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:483)
        at org.apache.log4j.LogManager.<clinit>(LogManager.java:127)
        at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)
        at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:242)
        at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:254)
        at com.cloudera.server.cmf.Main.<clinit>(Main.java:158)

I have installed CDH using root as user

[#2 · Accepted solution]

https://community.cloudera.com/t5/Cloudera-Manager-Installation/cloudera-scm-server-is-dead-and-pid-... is the same problem.    It says:

Since there is a .pid file, remove it first.  Check the following and delete if it exists:

        /var/run/cloudera-scm-server.pid

Try this.

[#3 · Accepted solution]

https://community.cloudera.com/t5/Cloudera-Manager-Installation/cloudera-scm-server-is-dead-and-pid-... is the same problem.    It says:

Since there is a .pid file, remove it first.  Check the following and delete if it exists:

        /var/run/cloudera-scm-server.pid

Try this.

[#4]

thanks for reply

i have deleted pid file from the same location  as you mentioned but after starting the cloudera server it status shows cloudera server running for a second and goes down again still unable to fix the problem

also i tried to start cloudera-scm-server-db service it shows permission denied .is their any problem of user ? because i have installed CDH as root and running command from user namenode

[#5 · Accepted solution]

problem sloved

stop all service - sudo service cloudera-scm-agent hard_stop_confimed

delete file /var/run/cloudera-scm-server.pid

allow read permission to /var/log/cloudera-scm-server/cloudera-scm-server.log & /var/log/cloudera-scm-server/db.log 

start all service

sudo service cloudera-scm-server-db start

sudo service cloudera-scm-server start

sudo service cloudera-scm-agent hard_restart_confimed