Unable Start Stop NFS Daemon Failed

I try to install the client system through kickstart with NFS service,
For client installation it is unable to get the kick start file, it asking for kick start file,these type of issue will happened when nfs service is failed.So I try to start restart the nfs service, While start nfs deamon start and stop are failed.
# service nfs start
Starting NFS services: [ OK ]
Starting NFS quotas: [ OK ]
Starting NFS daemon: [FAILED]
If the nfs Service is stop,

1)due to that unable to get Kickstart file it can not go ahead for installation.
2)So we have to restart the nfs service
while I restart I cann't start the service, It still show the Starting nfs service daemon is FAILED.
3)List out list of process which are used nfs service
# ps -ef | grep nfs
root 13282 177 0 17:10 ? 00:00:00 [nfsd4]
root 13290 1 0 17:10 ? 00:00:00 [nfsd]
root 13291 1 0 17:10 ? 00:00:00 [nfsd]
root 13392 177 0 17:10 ? 00:00:00 [nfsiod]
4)Kill the service
#kill -9 13284
# kill -9 13282
Like wise I kill the all the process
5)Then restart the nfs service it was starting nfs service perfectly.
Then the client will get kickstart file through nfs service and installation was completed succefully.

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