using agentE2E sink, with a node tailing a file, even with no activity i see ACKs over and over again, is this normal ?<div><br></div><div>The sink is:  <span class="Apple-style-span" style="font-family: sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); ">collector(10000) { attr2hbase(&quot;apache_logs&quot;,&quot;f1&quot;,&quot;&quot;,&quot;ss_&quot;) }</span><br>
<div><br></div><div><div>2011-10-18 17:02:42,937 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: Starting checksum group called 20111018-170233074-0400.158065883163017.00000020</div><div>2011-10-18 17:02:42,937 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: initial checksum is 13318d7c272</div>
<div>2011-10-18 17:02:42,937 WARN com.cloudera.flume.core.Event: Tag node not found</div><div>2011-10-18 17:02:42,937 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: Finishing checksum group called &#39;20111018-170233074-0400.158065883163017.00000020&#39;</div>
<div>2011-10-18 17:02:42,937 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: Checksum succeeded 13318d7c272</div><div>2011-10-18 17:02:42,937 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: moved from partial to complete 20111018-170233074-0400.158065883163017.00000020</div>
<div><br></div><div><br></div><div><br></div><div>2011-10-18 17:02:52,943 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: Starting checksum group called 20111018-170243079-0400.158075888528921.00000020</div>
<div>2011-10-18 17:02:52,943 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: initial checksum is 13318d7e989</div><div>2011-10-18 17:02:52,943 WARN com.cloudera.flume.core.Event: Tag node not found</div><div>
2011-10-18 17:02:52,943 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: Finishing checksum group called &#39;20111018-170243079-0400.158075888528921.00000020&#39;</div><div>2011-10-18 17:02:52,943 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: Checksum succeeded 13318d7e989</div>
<div>2011-10-18 17:02:52,943 INFO com.cloudera.flume.handlers.endtoend.AckChecksumChecker: moved from partial to complete 20111018-170243079-0400.158075888528921.00000020</div></div></div>