yangl commented on a change in pull request #10715:
URL: https://github.com/apache/pulsar/pull/10715#discussion_r647198868



##########
File path: 
pulsar-zookeeper-utils/src/main/java/org/apache/pulsar/zookeeper/ZkUtils.java
##########
@@ -121,4 +124,45 @@ public static String getParentForPath(final String path) {
         final String parentPath = sb.toString();
         return (parentPath.length() == 0) ? null : parentPath;
     }
+
+
+    /**
+     * Returns the trimmed "/ledgers" string
+     *
+     * @param path connect path sting
+     * @return the trimmed "/ledgers" string
+     */
+    public static final String trimLedgersDefaultRootPath(String path) {
+        String rs = path;
+        if (StringUtils.endsWith(path, "/")) {
+            rs = StringUtils.substringBeforeLast(path, "/");
+        }
+        // defalut "/ledgers" need to trim
+        if (StringUtils.endsWith(path, LEDGERS_DEFAULT_ROOT_PATH)) {

Review comment:
       > will set data to ip:port/ledgers/bookies path?
   
    yes, this will cause incompatibility, but i think we should do this 
correctly. the people can move the data to the bookie's zookeeper by manual.
   
   > ZkBookieRackAffinityMapping will be used for bookkeeper client and 
bookkeeper auto recovery, it will call trimLedgersDefaultRootPath, and it 
shouldn't just trim the default value.
   
   done, now use the bookie's Metadata Service Uri.




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