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Bug 1460589 - Add DNS vs TRR success/fail telemetry counter. r=mcmanus

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This commit is contained in:
Daniel Stenberg 2018-05-10 07:02:00 -04:00
parent b91a1dbbc5
commit 7edaccb568
2 changed files with 18 additions and 0 deletions
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9
netwerk/dns/nsHostResolver.cpp
View File

@ -298,6 +298,15 @@ nsHostRecord::ResolveComplete()
}
}
if (mTRRUsed && mNativeUsed) {
// both were used, accumulate comparative success
AccumulateCategorical(mNativeSuccess && mTRRSuccess?
Telemetry::LABELS_DNS_TRR_COMPARE::BothWorked :
((mNativeSuccess ? Telemetry::LABELS_DNS_TRR_COMPARE::NativeWorked :
(mTRRSuccess ? Telemetry::LABELS_DNS_TRR_COMPARE::TRRWorked:
Telemetry::LABELS_DNS_TRR_COMPARE::BothFailed))));
}
switch(mResolverMode) {
case MODE_NATIVEONLY:
case MODE_TRROFF:

9
toolkit/components/telemetry/Histograms.json
View File

@ -3283,6 +3283,15 @@
"bug_numbers": [1434852],
"description": "DNS: TRR parallel resolve racing results"
},
"DNS_TRR_COMPARE": {
"record_in_processes": ["main"],
"alert_emails": ["necko@mozilla.com", "dstenberg@mozilla.com"],
"expires_in_version": "never",
"kind": "categorical",
"labels": ["BothWorked", "NativeWorked", "TRRWorked", "BothFailed"],
"bug_numbers": [1460589],
"description": "DNS: success distribution when both native and TRR were used"
},
"DNS_TRR_BLACKLISTED": {
"record_in_processes": ["main"],
"expires_in_version": "never",