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Fix lock contention

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This commit is contained in:
Neil Alexander 2022-10-19 12:27:34 +01:00
parent c1463db6c9
commit 8cbe14bd6d
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1 changed files with 2 additions and 3 deletions
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5
keyserver/internal/internal.go
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@ -542,9 +542,7 @@ func (a *KeyInternalAPI) queryRemoteKeysOnServer(
} }
// refresh entries from DB: unlike remoteKeysFromDatabase we know we previously had no device info for this // refresh entries from DB: unlike remoteKeysFromDatabase we know we previously had no device info for this
// user so the fact that we're populating all devices here isn't a problem so long as we have devices. // user so the fact that we're populating all devices here isn't a problem so long as we have devices.
respMu.Lock()
err = a.populateResponseWithDeviceKeysFromDatabase(ctx, res, respMu, userID, nil) err = a.populateResponseWithDeviceKeysFromDatabase(ctx, res, respMu, userID, nil)
respMu.Unlock()
if err != nil { if err != nil {
logrus.WithFields(logrus.Fields{ logrus.WithFields(logrus.Fields{
logrus.ErrorKey: err, logrus.ErrorKey: err,
@ -568,6 +566,7 @@ func (a *KeyInternalAPI) queryRemoteKeysOnServer(
res.Failures[serverName] = map[string]interface{}{ res.Failures[serverName] = map[string]interface{}{
"message": err.Error(), "message": err.Error(),
} }
respMu.Unlock()
// last ditch, use the cache only. This is good for when clients hit /keys/query and the remote server // last ditch, use the cache only. This is good for when clients hit /keys/query and the remote server
// is down, better to return something than nothing at all. Clients can know about the failure by // is down, better to return something than nothing at all. Clients can know about the failure by
@ -578,11 +577,11 @@ func (a *KeyInternalAPI) queryRemoteKeysOnServer(
} }
// Sytest expects no failures, if we still could retrieve keys, e.g. from local cache // Sytest expects no failures, if we still could retrieve keys, e.g. from local cache
respMu.Lock()
if len(res.DeviceKeys) > 0 { if len(res.DeviceKeys) > 0 {
delete(res.Failures, serverName) delete(res.Failures, serverName)
} }
respMu.Unlock() respMu.Unlock()
} }
func (a *KeyInternalAPI) populateResponseWithDeviceKeysFromDatabase( func (a *KeyInternalAPI) populateResponseWithDeviceKeysFromDatabase(