http://www.datastax.com/support-forums/topic/no-performance-data-showing-up-in-opscenter Software, Support, and Training for Apache Cassandra en-US Thu, 23 May 2013 12:57:48 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/no-performance-data-showing-up-in-opscenter#post-1044 Tue, 10 Jan 2012 23:33:03 +0000 agd 1044@http://www.datastax.com/support-forums/ <p>Ok. Thank you for your assistance. </p> http://www.datastax.com/support-forums/topic/no-performance-data-showing-up-in-opscenter#post-1043 Tue, 10 Jan 2012 23:12:38 +0000 thobbs 1043@http://www.datastax.com/support-forums/ <p>No, it's not a matter of timezones, just a unix timestamp, so there should be no problem with using a browser in UK as long as the clock is relatively accurate. </p> http://www.datastax.com/support-forums/topic/no-performance-data-showing-up-in-opscenter#post-1042 Tue, 10 Jan 2012 22:18:22 +0000 agd 1042@http://www.datastax.com/support-forums/ <p>Indeed, that's what the problem was. The cluster time wasn't set properly and was way off compared to the browser. A better error message would help.</p> <p>Also, does that mean that accessing OpsCenter server from a browser say in the UK would cause the problem (cluster hosted in CA)? </p> http://www.datastax.com/support-forums/topic/no-performance-data-showing-up-in-opscenter#post-1037 Mon, 09 Jan 2012 23:18:49 +0000 thobbs 1037@http://www.datastax.com/support-forums/ <p>I believe I've seen this before, and it was due to clocks that were very out of sync between the opscenterd machine and the machine running the browser is running on. I recommend using NTP where possible.</p> <p>I'll make sure that there's a ticket open to handle this, or at least give a better error message. </p> http://www.datastax.com/support-forums/topic/no-performance-data-showing-up-in-opscenter#post-1036 Mon, 09 Jan 2012 23:06:45 +0000 agd 1036@http://www.datastax.com/support-forums/ <p>In the opscenter log, I see the following:</p> <p>2012-01-09 07:05:58-0800 [] Problem while calling MetricsController<br /> Traceback (most recent call last):<br /> Failure: telephus.cassandra.c08.ttypes.InvalidRequestException: InvalidRequestException(why='range finish must come after<br /> start in the order of traversal') </p> http://www.datastax.com/support-forums/topic/no-performance-data-showing-up-in-opscenter#post-1035 Mon, 09 Jan 2012 20:16:50 +0000 agd 1035@http://www.datastax.com/support-forums/ <p>Have a 6 nodes cluster with Cassandra Community Edition 1.0.5 (version of apache-cassandra1 package).<br /> Just installed OpsCenter (version 1.3.1-1) on one of the cluster nodes.<br /> Used OpsCenter to push the agents to all nodes (version 2.4.1 is reported for the agents).</p> <p>In OpsCenter, I do see the cluster properly, including the compaction activity under Cluster/List View when I have something running on the cluster.</p> <p>I do not see any sort of metric anywhere though, it's 'NO DATA AVAILABLE' everywhere, including the 'Storage Capacity' on the main dashboard page.</p> <p>It seems like the agents aren't collecting or reporting metrics? Anything I could check to troubleshoot this?</p> <p>Thank you. </p>