Add docs on partition size-on-disk, and other log-related metrics
kafka.log,type=Log,name=Size
kafka.log,type=Log,name=NumLogSegments
kafka.log,type=Log,name=LogStartOffset
kafka.log,type=Log,name=LogEndOffset
Reviewers: Guozhang Wang
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Here is some information on actually running Kafka as a production system based on usage and experience at LinkedIn. Please send us any additional tips you know of.
<td>kafka.server:type=BrokerTopicMetrics,name=ReassignmentBytesInPerSec</td>
<td></td>
</tr>
+ <tr>
+ <td>Size of a partition on disk (in bytes)</td>
+ <td>kafka.log:type=Log,name=Size,topic=([-.\w]+),partition=([0-9]+)</td>
+ <td>The size of a partition on disk, measured in bytes.</td>
+ </tr>
+ <tr>
+ <td>Number of log segments in a partition</td>
+ <td>kafka.log:type=Log,name=NumLogSegments,topic=([-.\w]+),partition=([0-9]+)</td>
+ <td>The number of log segments in a partition.</td>
+ </tr>
+ <tr>
+ <td>First offset in a partition</td>
+ <td>kafka.log:type=Log,name=LogStartOffset,topic=([-.\w]+),partition=([0-9]+)</td>
+ <td>The first offset in a partition.</td>
+ </tr>
+ <tr>
+ <td>Last offset in a partition</td>
+ <td>kafka.log:type=Log,name=LogEndOffset,topic=([-.\w]+),partition=([0-9]+)</td>
+ <td>The last offset in a partition.</td>
+ </tr>
</tbody></table>
<h4><a id="selector_monitoring" href="#selector_monitoring">Common monitoring metrics for producer/consumer/connect/streams</a></h4>
