Esempio n. 1
0
// Write the result of an action into topology server
func StoreActionResponse(ts topo.Server, actionNode *actionnode.ActionNode, actionPath string, actionErr error) error {
	// change our state
	if actionErr != nil {
		// on failure, set an error field on the node
		actionNode.Error = actionErr.Error()
		actionNode.State = actionnode.ACTION_STATE_FAILED
	} else {
		actionNode.Error = ""
		actionNode.State = actionnode.ACTION_STATE_DONE
	}
	actionNode.Pid = 0

	// Write the data first to our action node, then to the log.
	// In the error case, this node will be left behind to debug.
	data := actionNode.ToJson()
	return ts.StoreTabletActionResponse(actionPath, data)
}
Esempio n. 2
0
func (wr *Wrangler) unlockShard(keyspace, shard string, actionNode *actionnode.ActionNode, lockPath string, actionError error) error {
	// first update the actionNode
	if actionError != nil {
		log.Infof("Unlocking shard %v/%v for action %v with error %v", keyspace, shard, actionNode.Action, actionError)
		actionNode.Error = actionError.Error()
		actionNode.State = actionnode.ACTION_STATE_FAILED
	} else {
		log.Infof("Unlocking shard %v/%v for successful action %v", keyspace, shard, actionNode.Action)
		actionNode.Error = ""
		actionNode.State = actionnode.ACTION_STATE_DONE
	}
	err := wr.ts.UnlockShardForAction(keyspace, shard, lockPath, actionNode.ToJson())
	if actionError != nil {
		if err != nil {
			// this will be masked
			log.Warningf("UnlockShardForAction failed: %v", err)
		}
		return actionError
	}
	return err
}
Esempio n. 3
0
func (wr *Wrangler) lockShard(keyspace, shard string, actionNode *actionnode.ActionNode) (lockPath string, err error) {
	log.Infof("Locking shard %v/%v for action %v", keyspace, shard, actionNode.Action)
	return wr.ts.LockShardForAction(keyspace, shard, actionNode.ToJson(), wr.lockTimeout, interrupted)
}