metrics aggregation is incorrect in database
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Key: HADOOP-5031
URL: https://issues.apache.org/jira/browse/HADOOP-5031
Project: Hadoop Core
Issue Type: Bug
Components: contrib/chukwa
Environment: Redhat 5.1, Java 6
Reporter: Eric Yang
A few problem with the aggregation SQL statements:
hdfs throughput should be calculated by doing two level aggregation:
First, calculate the rate for hadoop datanode metrics with accumulated vales.
Second, sum up all datanode rate to provide a single number to represent the
current cluster performance.
Disable hod jobs utilization measurement - The data provide a rough view of the
cluster performance but mostly inaccurate.
Disable user utilization measurement generated from hod job - The data is
generated from hod job metrics, and it's mostly inaccurate.
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