Beispiel #1
0
func interactiveSplitDiff(wr *wrangler.Wrangler, w http.ResponseWriter, r *http.Request) {
	if err := r.ParseForm(); err != nil {
		httpError(w, "cannot parse form: %s", err)
		return
	}
	keyspace := r.FormValue("keyspace")
	shard := r.FormValue("shard")

	if keyspace == "" || shard == "" {
		// display the list of possible shards to chose from
		result := make(map[string]interface{})
		shards, err := shardsWithSources(wr)
		if err != nil {
			result["Error"] = err.Error()
		} else {
			result["Shards"] = shards
		}

		executeTemplate(w, splitDiffTemplate, result)
		return
	}

	// start the diff job
	wrk := worker.NewSplitDiffWorker(wr, *cell, keyspace, shard)
	if _, err := setAndStartWorker(wrk); err != nil {
		httpError(w, "cannot set worker: %s", err)
		return
	}

	http.Redirect(w, r, servenv.StatusURLPath(), http.StatusTemporaryRedirect)
}
Beispiel #2
0
func interactiveSplitClone(wr *wrangler.Wrangler, w http.ResponseWriter, r *http.Request) {
	if err := r.ParseForm(); err != nil {
		httpError(w, "cannot parse form: %s", err)
		return
	}

	keyspace := r.FormValue("keyspace")
	shard := r.FormValue("shard")
	if keyspace == "" || shard == "" {
		// display the list of possible splits to choose from
		// (just find all the overlapping guys)
		result := make(map[string]interface{})
		choices, err := keyspacesWithOverlappingShards(wr)
		if err != nil {
			result["Error"] = err.Error()
		} else {
			result["Choices"] = choices
		}

		executeTemplate(w, splitCloneTemplate, result)
		return
	}

	sourceReaderCountStr := r.FormValue("sourceReaderCount")
	if sourceReaderCountStr == "" {
		// display the input form
		result := make(map[string]interface{})
		result["Keyspace"] = keyspace
		result["Shard"] = shard
		result["DefaultSourceReaderCount"] = fmt.Sprintf("%v", defaultSourceReaderCount)
		result["DefaultDestinationPackCount"] = fmt.Sprintf("%v", defaultDestinationPackCount)
		result["DefaultMinTableSizeForSplit"] = fmt.Sprintf("%v", defaultMinTableSizeForSplit)
		result["DefaultDestinationWriterCount"] = fmt.Sprintf("%v", defaultDestinationWriterCount)
		executeTemplate(w, splitCloneTemplate2, result)
		return
	}

	// get other parameters
	destinationPackCountStr := r.FormValue("destinationPackCount")
	excludeTables := r.FormValue("excludeTables")
	excludeTableArray := strings.Split(excludeTables, ",")
	strategy := r.FormValue("strategy")
	sourceReaderCount, err := strconv.ParseInt(sourceReaderCountStr, 0, 64)
	if err != nil {
		httpError(w, "cannot parse sourceReaderCount: %s", err)
		return
	}
	destinationPackCount, err := strconv.ParseInt(destinationPackCountStr, 0, 64)
	if err != nil {
		httpError(w, "cannot parse destinationPackCount: %s", err)
		return
	}
	minTableSizeForSplitStr := r.FormValue("minTableSizeForSplit")
	minTableSizeForSplit, err := strconv.ParseInt(minTableSizeForSplitStr, 0, 64)
	if err != nil {
		httpError(w, "cannot parse minTableSizeForSplit: %s", err)
		return
	}
	destinationWriterCountStr := r.FormValue("destinationWriterCount")
	destinationWriterCount, err := strconv.ParseInt(destinationWriterCountStr, 0, 64)
	if err != nil {
		httpError(w, "cannot parse destinationWriterCount: %s", err)
		return
	}

	// start the clone job
	wrk, err := worker.NewSplitCloneWorker(wr, *cell, keyspace, shard, excludeTableArray, strategy, int(sourceReaderCount), int(destinationPackCount), uint64(minTableSizeForSplit), int(destinationWriterCount))
	if err != nil {
		httpError(w, "cannot create worker: %v", err)
		return
	}
	if _, err := setAndStartWorker(wrk); err != nil {
		httpError(w, "cannot set worker: %s", err)
		return
	}

	http.Redirect(w, r, servenv.StatusURLPath(), http.StatusTemporaryRedirect)
}