[Autorecovery] Default reppDnsResolverClass to ZkBookieRackAffinityMa…

…pping

conf/bookkeeper.conf

@@ -277,6 +277,13 @@ useV2WireProtocol=true
 #
 # ensemblePlacementPolicy=org.apache.bookkeeper.client.RackawareEnsemblePlacementPolicy
 
+# The DNS resolver class used for resolving network locations for bookies. The setting is used
+# when using either RackawareEnsemblePlacementPolicy and RegionAwareEnsemblePlacementPolicy.
+# Some available options:
+#   - org.apache.pulsar.zookeeper.ZkBookieRackAffinityMapping (Pulsar default)
+#   - org.apache.bookkeeper.net.ScriptBasedMapping (Bookkeeper default)
+reppDnsResolverClass=org.apache.pulsar.zookeeper.ZkBookieRackAffinityMapping
+
 #############################################################################
 ## Netty server settings
 #############################################################################

site2/docs/reference-configuration.md

@@ -110,6 +110,7 @@ BookKeeper is a replicated log storage system that Pulsar uses for durable stora
 |writeBufferSizeBytes|The number of bytes used as capacity for the write buffer|65536|
 |useHostNameAsBookieID|Whether the bookie should use its hostname to register with the coordination service (e.g.: zookeeper service). When false, bookie will use its ip address for the registration.|false|
 |bookieId | If you want to custom a bookie ID or use a dynamic network address for the bookie, you can set the `bookieId`. <br /><br />Bookie advertises itself using the `bookieId` rather than the `BookieSocketAddress` (`hostname:port` or `IP:port`). If you set the `bookieId`, then the `useHostNameAsBookieID` does not take effect.<br /><br />The `bookieId` is a non-empty string that can contain ASCII digits and letters ([a-zA-Z9-0]), colons, dashes, and dots. <br /><br />For more information about `bookieId`, see [here](http://bookkeeper.apache.org/bps/BP-41-bookieid/).|N/A|
+|reppDnsResolverClass| The DNS resolver class used for resolving network locations for bookies. The setting is used when using either RackawareEnsemblePlacementPolicy and RegionAwareEnsemblePlacementPolicy.| `org.apache.pulsar.zookeeper.ZkBookieRackAffinityMapping` |
 |allowEphemeralPorts|Whether the bookie is allowed to use an ephemeral port (port 0) as its server port. By default, an ephemeral port is not allowed. Using an ephemeral port as the service port usually indicates a configuration error. However, in unit tests, using an ephemeral port will address port conflict problems and allow running tests in parallel.|false|
 |enableLocalTransport|Whether the bookie is allowed to listen for the BookKeeper clients executed on the local JVM.|false|
 |disableServerSocketBind|Whether the bookie is allowed to disable bind on network interfaces. This bookie will be available only to BookKeeper clients executed on the local JVM.|false|