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Im reading a log file in Java on a Linux box on a continual schedule of 2 minutes looking for certain messages. I store the last offset (RandomAccessFile getFilePointer) and read from it onwards when I detect LastModified has changed; is this best practice or even right?
If you are using Java 7, then you can use WatchService to notify you when a File inside of a directory changes. This is similar to interrupts and doesn’t need continuous polling. See this for more details on WatchService. Otherwise you are better off with the polling method you already do.