c-ares / c-ares / 10774847553

92%

Build Type

push

github

Committed by web-flow

Commit Message

Probe for failed servers instead of redirecting query (#877)

The previous implementation would redirect a query to a failed server
based on a timeout and random chance per query. This could lead to
issues of having to deal with server timeout scenarios when the server
isn't back online yet causing latency issues. Instead, we should
continue to use the known good servers for the query itself, but spawn a
second query with the same question to a different downed server. That
query will be able to be processed in the background and potentially
bring the server back online.

Also, when using the `rotate` option, servers were previously chosen at
random from the complete list. This PR changes that to choose only from
the servers that share the same highest priority.

Authored-By: Brad House (@bradh352)

Run Details

127 of 142 new or added lines in 6 files covered. (89.44%)

2 existing lines in 2 files now uncovered.

20891 of 22878 relevant lines covered (91.31%)

12715.22 hits per line