Dear sir
There some problem with one of my domain log files. If a log not be completely download to the log files, then
  all other logs not be added again and halt there. Everytime need edit the log file, delete/remove the last line
that caused the problem. I want to know what problem cause the log not completely add to the file
Is it have other tool or command for check the log files working fine or not?
My Apache version is 1.3.12. Server is redhat linux 6.0
Best Regards