Bug 165620 – LayoutTest http/tests/cache/disk-cache/disk-cache-request-headers.html is a flaky failure

• Status: NEW
• Component: New Bugs

[Ryan Haddad]

LayoutTest http/tests/cache/disk-cache/disk-cache-request-headers.html is a flaky failure

https://build.webkit.org/results/Apple%20Sierra%20Release%20WK2%20(Tests)/r209548%20(2029)/results.html

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fcache%2Fdisk-cache%2Fdisk-cache-request-headers.html

--- /Volumes/Data/slave/sierra-release-tests-wk2/build/layout-test-results/http/tests/cache/disk-cache/disk-cache-request-headers-expected.txt
+++ /Volumes/Data/slave/sierra-release-tests-wk2/build/layout-test-results/http/tests/cache/disk-cache/disk-cache-request-headers-actual.txt
@@ -102,94 +102,94 @@
 
 --------Testing loads through memory cache (XHR behavior)--------
 response headers: {"Cache-control":"max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-store"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-store"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, no-store"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, no-store"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-store, max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-store, max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"max-age=100"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, max-age=100"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-store, max-age=100"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-store, max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, no-store, max-age=100"}
-response source: Network
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-store, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-store, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, no-store, max-age=100"}
+response source: Memory cache
 
 response headers: {"Cache-control":"max-age=100"}
 request headers: {"Cache-control":"no-cache, no-store, max-age=100"}
@@ -197,94 +197,94 @@
 
 --------Testing loads through memory cache (subresource behavior)--------
 response headers: {"Cache-control":"max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-store"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-store"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, no-store"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, no-store"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-store, max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-store, max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"max-age=100"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, max-age=100"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-cache, max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-store, max-age=100"}
-response source: Network
-
-response headers: {"Cache-control":"max-age=100"}
-request headers: {"Cache-control":"no-store, max-age=100"}
-response source: Memory cache
-
-response headers: {"Cache-control":"max-age=0"}
-request headers: {"Cache-control":"no-cache, no-store, max-age=100"}
-response source: Network
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, no-store"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, no-store, max-age=0"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-cache, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-store, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=100"}
+request headers: {"Cache-control":"no-store, max-age=100"}
+response source: Memory cache
+
+response headers: {"Cache-control":"max-age=0"}
+request headers: {"Cache-control":"no-cache, no-store, max-age=100"}
+response source: Memory cache
 
 response headers: {"Cache-control":"max-age=100"}
 request headers: {"Cache-control":"no-cache, no-store, max-age=100"}

[Matt Lewis]

This flakiness is still happening as of:
https://build.webkit.org/results/Apple%20Sierra%20Release%20WK2%20(Tests)/r224931%20(5788)/results.html

Marking as flaky on Sierra and El Capitan:

[Matt Lewis]

(In reply to Matt Lewis from comment #1)
> This flakiness is still happening as of:
> https://build.webkit.org/results/Apple%20Sierra%20Release%20WK2%20(Tests)/
> r224931%20(5788)/results.html
> 
> Marking as flaky on Sierra and El Capitan:

https://trac.webkit.org/changeset/224936/webkit