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Fix default metrics_resolution language #4413

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Fix default metrics_resolution language #4413

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9492ad1
Fix default metrics_resolution language
lpsantil May 12, 2017
7d2369f
Fix the math
lpsantil May 12, 2017
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12 changes: 6 additions & 6 deletions install_config/cluster_metrics.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -165,10 +165,10 @@ metrics data in this scenario is:
.Data Accumulated by 120 Nodes and 10000 Pods
====
In a test scenario including 120 nodes and 10000 pods, a 24 hour period
accumulated 25 GB of metrics data. Therefore, the capacity planning formula for
accumulated 11.4 GB of metrics data. Therefore, the capacity planning formula for
metrics data in this scenario is:

(((11.410 × 10^9^) ÷ 1000) ÷ 24) ÷ 10^6^ = 0.475 MB/hour
(((11.4 × 10^9^) ÷ 1000) ÷ 24) ÷ 10^6^ = 0.475 MB/hour
====

|===
Expand All @@ -185,8 +185,8 @@ These two test cases are presented on the following graph:
image::https://raw.githubusercontent.com/ekuric/openshift/master/metrics/1_10kpods.png[1000 pods vs 10000 pods monitored during 24 hours]
endif::openshift-origin[]

If the default value of 7 days for `openshift_metrics_duration` and 10 seconds for
`openshift_metrics_resolution` are preserved, then weekly storage requirements for the Cassandra pod would be:
If the default value of 7 days for `openshift_metrics_duration` is preserved, and
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s/preserved,/preserved

`openshift_metrics_resolution` is set to 10 seconds, then weekly storage requirements for the Cassandra pod would be:
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s/would be/are


|===
| |1000 pods | 10000 pods
Expand Down Expand Up @@ -248,8 +248,8 @@ Cluster Metrics] topic.
In the above calculation, approximately 20 percent of the expected size was added as
overhead to ensure that the storage requirements do not exceed calculated value.

If the `METRICS_DURATION` and `METRICS_RESOLUTION` values are kept at the
default (`7` days and `15` seconds respectively), it is safe to plan Cassandra
If the `METRICS_DURATION` value is kept to the default (`7` days), and `METRICS_RESOLUTION` value
is set to `15` seconds, it is safe to plan Cassandra
storage size requrements for week, as in the values above.


Expand Down