diff --git a/common/tsdb/kairosdb.go b/common/tsdb/kairosdb.go
index 931ea65..6eda2a9 100644
--- a/common/tsdb/kairosdb.go
+++ b/common/tsdb/kairosdb.go
@@ -1,6 +1,7 @@
 package tsdb
 
 import (
+	"errors"
 	"fmt"
 	"strconv"
 	"strings"
@@ -35,6 +36,9 @@ func (k *KairosDbClient) newQueryBuilder(start, end, rawTags, aggregator, metric
 			if _, ok := tags[tagKV[0]]; !ok {
 				tagks = append(tagks, tagKV[0])
 			}
+			if tagKV[1] == "all" {
+				continue
+			}
 			tags[tagKV[0]] = append(tags[tagKV[0]], strings.Split(tagKV[1], "|")...)
 		}
 	}
@@ -59,6 +63,10 @@ func (k *KairosDbClient) Query(start, end, rawTags, aggregator, metric string, i
 	if err != nil {
 		return
 	}
+	errs := queryResp.GetErrors()
+	if len(errs) > 0 {
+		err = errors.New(strings.Join(errs, "|"))
+	}
 	if len(queryResp.QueriesArr) > 0 {
 		for _, r := range queryResp.QueriesArr[0].ResultsArr {
 			result := new(Result)
diff --git a/common/tsdb/opentsdb.go b/common/tsdb/opentsdb.go
index a6ace42..7249684 100644
--- a/common/tsdb/opentsdb.go
+++ b/common/tsdb/opentsdb.go
@@ -81,6 +81,9 @@ func (c *OpenTsdbClient) newQueryParams(start, end, rawTags, aggregator, metric
 		tagsPairs := strings.Split(rawTags, ",")
 		for _, tagPair := range tagsPairs {
 			tagKV := strings.Split(tagPair, "=")
+			if tagKV[1] == "all" {
+				tagKV[1] = "*"
+			}
 			tags[tagKV[0]] = tagKV[1]
 		}
 	}