335
setIdx, indexInSet := worker_versioning.FindBuildId(data, caps.BuildId)
336
if setIdx < 0 {
337
>
// A poller is using a build ID but we don't know about that build ID. This can happen
version_sets.go
338
>
// in a replication scenario if pollers are running on the passive side before the data
339
>
// has been replicated. Instead of rejecting, we can guess a set id based on the build
340
>
// ID. If the build ID was the first in its set on the other side, then our guess is
341
>
// right and things will work out. If not, then we'll guess wrong, but when the
342
>
// versioning data replicates, we'll redirect the poll to the correct set id.
343
>
// In the meantime (e.g. during an ungraceful failover) we can at least match tasks
344
>
// using the exact same build ID.
345
>
guessedSetId := hashBuildId(caps.BuildId)
346
>
return guessedSetId, nil, true, nil
347
>
}
348
set := data.VersionSets[setIdx]
349
lastIndex := len(set.BuildIds) - 1