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From Chun-Hung Hsiao <chhs...@apache.org>
Subject Re: Review Request 67255: Added per-CSI-call RPC metrics for SLRP.
Date Fri, 25 May 2018 22:39:39 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/67255/
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(Updated May 25, 2018, 10:39 p.m.)


Review request for mesos, Benjamin Bannier, Greg Mann, Jie Yu, and Jan Schlicht.


Changes
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Renamed `discarded` metrics to `cancelled` as this makes more sense to the user.


Bugs: MESOS-8943
    https://issues.apache.org/jira/browse/MESOS-8943


Repository: mesos


Description (updated)
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For each CSI call, e.g., `csi.v0.Identity.Probe`, we the following
metrics for SLRP:
`csi_plugin/rpcs/csi.v0.Identity.Probe/pending`
`csi_plugin/rpcs/csi.v0.Identity.Probe/successes`
`csi_plugin/rpcs/csi.v0.Identity.Probe/errors`
`csi_plugin/rpcs/csi.v0.Identity.Probe/discarded`

To add these per-CSI-call metrics, we introduced class template
`messo::csi::v0::Client::MethodName` to translate RPC methods of the CSI
client into string names, and added the `call` helper function in SLRP
to intercept CSI calls and update the corresponding metrics.


Diffs (updated)
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  src/csi/client.hpp 9d7019afb08168d18e5a78831a45af88a75bf809 
  src/csi/client.cpp a4ba1f12a79354f81b29924b19b119fad31a06b9 
  src/resource_provider/storage/provider.cpp 63b5d7e5f10d6ad02b5cd11b119def3b4abf4180 


Diff: https://reviews.apache.org/r/67255/diff/7/

Changes: https://reviews.apache.org/r/67255/diff/6-7/


Testing
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sudo make check

A unit test for the metrics will be introduced in the next patch.


Thanks,

Chun-Hung Hsiao


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