Hi, Not a direct way to see this, but we use Kafka 0.7.2 and monitor the disk space on it, so that's one way to see *roughly* what is happening. If you use something like SPM to monitor your Kafka nodes (see http://blog.sematext.com/2013/10/16/announcement-spm-performance-monitoring-for-kafka/) and if broker stores data on the disk partition that nothing else writes to, then you can look at disk usage and read/write rates for that specific partition and thus get the more precise numbers.
If there's a more direct way to see/get this number, I'm all eyeballs! Otis -- Performance Monitoring * Log Analytics * Search Analytics Solr & Elasticsearch Support * http://sematext.com/ On Thu, Dec 26, 2013 at 11:37 PM, Barto Rael <abcduser...@gmail.com> wrote: > Hi All, > > Can we see count of messages or bytes of a topic present in kafka > using jconsole or any other way ? > > > Jmx metric "BytesInperSec" doesn't show data stored in kafka. > As per my understanding: > "BytesInperSec" is count of bytes in a topic that have been received > by the broker since the broker process started. It is just counter > value that get incremented each time a new byte is received by broker. > The value is reset to 0 when broker is restarted. > Also the Byte count will not be decremented if any bytes are deleted > from broker. > > Is there any way to check count of bytes stored in kafka even after > kafka is restarted? >
