X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/a7a482db3954fa6470be74f0e00f6e1e105e0b6c..2e74236fa27822addd856f194befc28382990ce0:/sdk/go/keepclient/discover.go?ds=sidebyside

diff --git a/sdk/go/keepclient/discover.go b/sdk/go/keepclient/discover.go
index 744ff82685..5eafbbe339 100644
--- a/sdk/go/keepclient/discover.go
+++ b/sdk/go/keepclient/discover.go
@@ -19,7 +19,7 @@ import (
 	"git.arvados.org/arvados.git/sdk/go/arvadosclient"
 )
 
-// ClearCache clears the Keep service discovery cache.
+// RefreshServiceDiscovery clears the Keep service discovery cache.
 func RefreshServiceDiscovery() {
 	var wg sync.WaitGroup
 	defer wg.Wait()
@@ -35,8 +35,8 @@ func RefreshServiceDiscovery() {
 	}
 }
 
-// ClearCacheOnSIGHUP installs a signal handler that calls
-// ClearCache when SIGHUP is received.
+// RefreshServiceDiscoveryOnSIGHUP installs a signal handler that calls
+// RefreshServiceDiscovery when SIGHUP is received.
 func RefreshServiceDiscoveryOnSIGHUP() {
 	svcListCacheMtx.Lock()
 	defer svcListCacheMtx.Unlock()
@@ -138,6 +138,10 @@ func (kc *KeepClient) discoverServices() error {
 		return nil
 	}
 
+	if kc.Arvados.ApiServer == "" {
+		return fmt.Errorf("Arvados client is not configured (target API host is not set). Maybe env var ARVADOS_API_HOST should be set first?")
+	}
+
 	svcListCacheMtx.Lock()
 	cacheEnt, ok := svcListCache[kc.Arvados.ApiServer]
 	if !ok {