[fix]Decommission command throws KeeperErrorCode exception when autoRecovery is disabled

bookkeeper-server/src/main/java/org/apache/bookkeeper/client/BookKeeperAdmin.java

@@ -1553,7 +1553,17 @@ public void triggerAudit()
             throw new UnavailableException("Autorecovery is disabled. So giving up!");
         }
 
-        BookieId auditorId = getLedgerAuditorManager().getCurrentAuditor();
+        BookieId auditorId = null;
+        try {
+            auditorId = getLedgerAuditorManager().getCurrentAuditor();
+        } catch (IOException e) {
+            if (e.getCause() instanceof KeeperException.NoNodeException) {
+                LOG.error("Unable to find Zookeeper node: {}", e.getCause().getMessage());
+                throw new UnavailableException("Autorecovery is disabled due to "
+                        + "missing Zookeeper node. Aborting recovery!");
+            }
+            throw e;
+        }
         if (auditorId == null) {
             LOG.error("No auditor elected, though Autorecovery is enabled. So giving up.");
             throw new UnavailableException("No auditor elected, though Autorecovery is enabled. So giving up.");

bookkeeper-server/src/test/java/org/apache/bookkeeper/bookie/ClusterInfoCommandTest.java

@@ -23,8 +23,11 @@
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
 
+import org.apache.bookkeeper.client.BookKeeperAdmin;
 import org.apache.bookkeeper.conf.ServerConfiguration;
+import org.apache.bookkeeper.replication.ReplicationException;
 import org.apache.bookkeeper.test.BookKeeperClusterTestCase;
 import org.apache.bookkeeper.tools.cli.commands.bookies.ClusterInfoCommand;
 import org.apache.bookkeeper.tools.framework.CliFlags;
@@ -60,4 +63,16 @@ public void testClusterInfo() throws Exception {
         assertTrue(info.isLedgerReplicationEnabled());
     }
 
+    @Test
+    public void testRecoveryDisabled() {
+        try (BookKeeperAdmin bookKeeperAdmin = new BookKeeperAdmin(super.bkc)) {
+            bookKeeperAdmin.triggerAudit();
+            fail("should failed");
+        } catch (Exception e) {
+            assertTrue(e instanceof ReplicationException.UnavailableException);
+            assertTrue(e.getMessage().contains("Autorecovery is disabled due to missing Zookeeper node."
+                    + " Aborting recovery"));
+        }
+    }
+
 }