https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219935#M82075 <P>How do I get the memory usage avg.? </P> Tue, 14 Aug 2018 15:24:53 GMT amarn_ucs2014 2018-08-14T15:24:53Z https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219933#M82073 <P>Say, for last 5 minutes what is the cpu usage for 5 minutes averaged across all nodes in the cluster?</P><P>I can see that in Ambari, but I want information in the given time range and I should be able to get that information with an API call.</P> Tue, 14 Aug 2018 11:47:13 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219933#M82073 amarn_ucs2014 2018-08-14T11:47:13Z https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219934#M82074 <P>Hi <A rel="user" href="https://community.cloudera.com/users/91253/amarnucs2014.html" nodeid="91253">@naveen r</A></P><P>If you have ambari metrics installed you can do this with REST API. For example;</P><PRE>curl -u admin:admin -H 'X-Requested-By:ambari' -X GET "https//localhost:8080/api/v1/clusters/&lt;your cluster name&gt;/?fields=metrics/load/CPUs._avg[1534230000,1534231500,15]"</PRE><P>Note that ;</P><PRE>CPUs._avg[X,Y,15] </PRE><P>X = start time, Y = end time, 15 = step value used for zero padding or null padding </P><P>More examples and official documentation on:</P><P><A href="https://cwiki.apache.org/confluence/display/AMBARI/Ambari+Metrics+API+specification" target="_blank">https://cwiki.apache.org/confluence/display/AMBARI/Ambari+Metrics+API+specification</A></P> Tue, 14 Aug 2018 14:31:08 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219934#M82074 JonathanSneep 2018-08-14T14:31:08Z https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219935#M82075 <P>How do I get the memory usage avg.? </P> Tue, 14 Aug 2018 15:24:53 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219935#M82075 amarn_ucs2014 2018-08-14T15:24:53Z https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219936#M82076 <P>There are a variety of options for memory. I just tried the same for my cluster and using for example fields=metrics/memory/Use._avg[1534235091,1534235391,15] worked well.</P><P>Further options quoted from the source code;</P><PRE>/clusters/{clusterName}/?fields=metrics/memory/Buffer._avg[{fromSeconds},{toSeconds},{stepSeconds}],metrics/memory/Cache._avg[{fromSeconds},{toSeconds},{stepSeconds}],metrics/memory/Share._avg[{fromSeconds},{toSeconds},{stepSeconds}],metrics/memory/Swap._avg[{fromSeconds},{toSeconds},{stepSeconds}], metrics/memory/Total._avg[{fromSeconds},{toSeconds},{stepSeconds}], metrics/memory/Use._avg[{fromSeconds},{toSeconds},{stepSeconds}]',<BR /></PRE> Tue, 14 Aug 2018 15:39:40 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/How-do-I-get-information-of-CPU-memory-used-by-a-certain/m-p/219936#M82076 JonathanSneep 2018-08-14T15:39:40Z