pcp2openmetrics: resolves RHEL-11406 #2448
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multi-instance metrics failing when queried with singular metrics from archive. Turning interpolation on resolves this issue. Additional code added to fix missing headers when 2+ metrics are queried together.
wcohen
reviewed
Jan 16, 2026
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| # Set delay mode, interpolation | ||
| if self.context.type != PM_CONTEXT_ARCHIVE: | ||
| if self.context.type == PM_CONTEXT_ARCHIVE: |
Contributor
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How is this going to work with live data? I don't think that inverting the sense of the test is the right thing to do to turn on the interpolation. Isn't that going to delay things for the archive. Looking at the pmrep.py has:
# Set delay mode, interpolation
if self.context.type == PM_CONTEXT_ARCHIVE:
self.delay = 1
self.interpol = 1
And it initialize interpol in PMReporter to 1 with the following rather than 0 in pcp2openmetrics.py:
self.interpol = 1
Contributor
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"RHEL-11406" in the comment doesn't look correct. Should that be RHEL-138467?
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multi-instance metrics failing when queried with
singular metrics from archive. Turning interpolation on resolves this issue. Additional code added to fix missing headers when 2+ metrics are queried together.