private static boolean ignoreIsPidAlive() {
    return Boolean.getBoolean(PROPERTY_IGNORE_IS_PID_ALIVE);
  }
Creates a new pid file and writes this process's pid into it.

@param force if true then the pid file will be replaced if it already exists it

@throws FileAlreadyExistsException if the pid file already exists and force is false
@throws IOException if unable to create or write to the file
geode-core/src/main/java/org/apache/geode/internal/process/LocalProcessLauncher.java