Add some debug logging for trying to track down an issue

2 files changed, 6 insertions, 0 deletions

diff --git a/jrt/src/com/yahoo/jrt/slobrok/api/Mirror.java b/jrt/src/com/yahoo/jrt/slobrok/api/Mirror.java
index d67b6efed31..5c8efbb8d52 100644
--- a/jrt/src/com/yahoo/jrt/slobrok/api/Mirror.java
+++ b/jrt/src/com/yahoo/jrt/slobrok/api/Mirror.java
@@ -164,6 +164,7 @@ public class Mirror implements IMirror {
             return;
         }
 
+        log.log(Level.FINE, () -> "slobroks: "  + slobroks.toString() + ", currSlobrok: " + currSlobrok + ", target=" + target);
         if (target != null && ! slobroks.contains(currSlobrok)) {
             target.close();
             target = null;
@@ -222,6 +223,7 @@ public class Mirror implements IMirror {
             || (req.returnValues().get(2).count() !=
                 req.returnValues().get(3).count()))
         {
+            log.log(Level.FINE, () -> "Error when handling update from slobrok. Request: " + req);
             target.close();
             target = null;
             updateTask.scheduleNow(); // try next slobrok
diff --git a/jrt/src/com/yahoo/jrt/slobrok/api/SlobrokList.java b/jrt/src/com/yahoo/jrt/slobrok/api/SlobrokList.java
index b524c25d8ff..7820d2cea67 100644
--- a/jrt/src/com/yahoo/jrt/slobrok/api/SlobrokList.java
+++ b/jrt/src/com/yahoo/jrt/slobrok/api/SlobrokList.java
@@ -3,8 +3,11 @@ package com.yahoo.jrt.slobrok.api;
 
 import java.util.Arrays;
 import java.util.concurrent.ThreadLocalRandom;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 public class SlobrokList {
+    private static Logger log = Logger.getLogger(SlobrokList.class.getName());
 
     private final Internal internal;
     private String[] slobroks;
@@ -20,6 +23,7 @@ public class SlobrokList {
 
     private void checkUpdate() {
         synchronized (internal) {
+            log.log(Level.FINE, () -> "slobroks: " + slobroks + ", internal slobroks: " + internal.slobroks);
             if (slobroks != internal.slobroks) {
                 slobroks = internal.slobroks;
                 idx = 0;