Throw exception instead of returning null when reading application id fails

2 files changed, 6 insertions, 7 deletions

diff --git a/configserver/src/main/java/com/yahoo/vespa/config/server/deploy/Deployment.java b/configserver/src/main/java/com/yahoo/vespa/config/server/deploy/Deployment.java
index 8c2e6027691..21103b490fd 100644
--- a/configserver/src/main/java/com/yahoo/vespa/config/server/deploy/Deployment.java
+++ b/configserver/src/main/java/com/yahoo/vespa/config/server/deploy/Deployment.java
@@ -131,11 +131,10 @@ public class Deployment implements com.yahoo.config.provision.Deployment {
         if ( ! prepared)
             prepare();
 
-        try (ActionTimer timer = applicationRepository.timerFor(session.getApplicationId(), "deployment.activateMillis")) {
+        validateSessionStatus(session);
+        ApplicationId applicationId = session.getApplicationId();
+        try (ActionTimer timer = applicationRepository.timerFor(applicationId, "deployment.activateMillis")) {
             TimeoutBudget timeoutBudget = new TimeoutBudget(clock, timeout);
-            validateSessionStatus(session);
-            ApplicationId applicationId = session.getApplicationId();
-
             if ( ! timeoutBudget.hasTimeLeft()) throw new RuntimeException("Timeout exceeded when trying to activate '" + applicationId + "'");
 
             RemoteSession previousActiveSession;
@@ -148,7 +147,7 @@ public class Deployment implements com.yahoo.config.provision.Deployment {
                 throw e;
             }
             catch (Exception e) {
-                throw new InternalServerException("Error activating application", e);
+                throw new InternalServerException("Error when activating '" + applicationId + "'", e);
             }
 
             waiter.awaitCompletion(timeoutBudget.timeLeft());
diff --git a/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionZooKeeperClient.java b/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionZooKeeperClient.java
index cf1e07788ff..9e39322c4b1 100644
--- a/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionZooKeeperClient.java
+++ b/configserver/src/main/java/com/yahoo/vespa/config/server/session/SessionZooKeeperClient.java
@@ -11,7 +11,6 @@ import com.yahoo.config.provision.AllocatedHosts;
 import com.yahoo.config.provision.ApplicationId;
 import com.yahoo.config.provision.AthenzDomain;
 import com.yahoo.config.provision.DockerImage;
-import com.yahoo.config.provision.NodeFlavors;
 import com.yahoo.path.Path;
 import com.yahoo.text.Utf8;
 import com.yahoo.transaction.Transaction;
@@ -149,7 +148,8 @@ public class SessionZooKeeperClient {
 
     public ApplicationId readApplicationId() {
         String idString = configCurator.getData(applicationIdPath());
-        return idString == null ? null : ApplicationId.fromSerializedForm(idString);
+        if (idString == null) throw new RuntimeException("Unable to read application id at " + applicationIdPath());
+        return ApplicationId.fromSerializedForm(idString);
     }
 
     void writeApplicationPackageReference(FileReference applicationPackageReference) {