nicoloboschi commented on a change in pull request #13777:
URL: https://github.com/apache/pulsar/pull/13777#discussion_r792353241



##########
File path: 
pulsar-proxy/src/main/java/org/apache/pulsar/proxy/server/ProxyServiceStarter.java
##########
@@ -70,16 +70,23 @@
     @Parameter(names = { "-c", "--config" }, description = "Configuration file 
path", required = true)
     private String configFile;
 
+    @Deprecated
     @Parameter(names = { "-zk", "--zookeeper-servers" }, description = "Local 
zookeeper connection string")

Review comment:
       Could you explain which is the successor of this parameter?

##########
File path: 
pulsar-proxy/src/main/java/org/apache/pulsar/proxy/server/ProxyServiceStarter.java
##########
@@ -70,16 +70,23 @@
     @Parameter(names = { "-c", "--config" }, description = "Configuration file 
path", required = true)
     private String configFile;
 
+    @Deprecated
     @Parameter(names = { "-zk", "--zookeeper-servers" }, description = "Local 
zookeeper connection string")
     private String zookeeperServers = "";
+    @Parameter(names = { "-md", "--metadata-store" }, description = "Metadata 
Store service url. eg: zk:my-zk:2181")
+    private String metadataStoreUrl = "";
 
     @Deprecated
     @Parameter(names = { "-gzk", "--global-zookeeper-servers" }, description = 
"Global zookeeper connection string")
     private String globalZookeeperServers = "";
 
+    @Deprecated
     @Parameter(names = { "-cs", "--configuration-store-servers" },
-        description = "Configuration store connection string")

Review comment:
       Could you explain which is the successor of this parameter?

##########
File path: 
pulsar-proxy/src/main/java/org/apache/pulsar/proxy/server/ProxyServiceStarter.java
##########
@@ -131,30 +138,35 @@ public ProxyServiceStarter(String[] args) throws 
Exception {
             // load config file
             config = PulsarConfigurationLoader.create(configFile, 
ProxyConfiguration.class);
 
-            if (!isBlank(zookeeperServers)) {
-                // Use zookeeperServers from command line
-                config.setZookeeperServers(zookeeperServers);
+            if (isBlank(metadataStoreUrl)) {
+                // Use zookeeperServers from command line if metadataStoreUrl 
is empty;
+                config.setMetadataStoreUrl(zookeeperServers);
+            } else {
+                // Use metadataStoreUrl from command line
+                config.setMetadataStoreUrl(metadataStoreUrl);
             }
 
             if (!isBlank(globalZookeeperServers)) {
-                // Use globalZookeeperServers from command line
-                config.setConfigurationStoreServers(globalZookeeperServers);
+                
config.setConfigurationMetadataStoreUrl(globalZookeeperServers);
             }
             if (!isBlank(configurationStoreServers)) {
-                // Use configurationStoreServers from command line
-                config.setConfigurationStoreServers(configurationStoreServers);
+                // Use configurationMetadataStoreUrl from command line
+                
config.setConfigurationMetadataStoreUrl(configurationStoreServers);
+            }
+            if (!isBlank(configurationMetadataStoreUrl)) {
+                
config.setConfigurationMetadataStoreUrl(configurationMetadataStoreUrl);
             }
 
             if ((isBlank(config.getBrokerServiceURL()) && 
isBlank(config.getBrokerServiceURLTLS()))
                     || config.isAuthorizationEnabled()) {
-                checkArgument(!isEmpty(config.getZookeeperServers()), 
"zookeeperServers must be provided");
-                checkArgument(!isEmpty(config.getConfigurationStoreServers()),
-                        "configurationStoreServers must be provided");
+                checkArgument(!isEmpty(config.getMetadataStoreUrl()), 
"metadata store url must be provided");

Review comment:
       ```suggestion
                   checkArgument(!isEmpty(config.getMetadataStoreUrl()), 
"metadataStoreUrl must be provided");
   ```
   

##########
File path: 
pulsar-proxy/src/main/java/org/apache/pulsar/proxy/server/ProxyServiceStarter.java
##########
@@ -131,30 +138,35 @@ public ProxyServiceStarter(String[] args) throws 
Exception {
             // load config file
             config = PulsarConfigurationLoader.create(configFile, 
ProxyConfiguration.class);
 
-            if (!isBlank(zookeeperServers)) {
-                // Use zookeeperServers from command line
-                config.setZookeeperServers(zookeeperServers);
+            if (isBlank(metadataStoreUrl)) {

Review comment:
       Can you add a simple unit test to verify these changes and prevent 
future regressions?

##########
File path: 
pulsar-proxy/src/main/java/org/apache/pulsar/proxy/server/ProxyServiceStarter.java
##########
@@ -131,30 +138,35 @@ public ProxyServiceStarter(String[] args) throws 
Exception {
             // load config file
             config = PulsarConfigurationLoader.create(configFile, 
ProxyConfiguration.class);
 
-            if (!isBlank(zookeeperServers)) {
-                // Use zookeeperServers from command line
-                config.setZookeeperServers(zookeeperServers);
+            if (isBlank(metadataStoreUrl)) {
+                // Use zookeeperServers from command line if metadataStoreUrl 
is empty;
+                config.setMetadataStoreUrl(zookeeperServers);
+            } else {
+                // Use metadataStoreUrl from command line
+                config.setMetadataStoreUrl(metadataStoreUrl);
             }
 
             if (!isBlank(globalZookeeperServers)) {
-                // Use globalZookeeperServers from command line
-                config.setConfigurationStoreServers(globalZookeeperServers);
+                
config.setConfigurationMetadataStoreUrl(globalZookeeperServers);
             }
             if (!isBlank(configurationStoreServers)) {
-                // Use configurationStoreServers from command line
-                config.setConfigurationStoreServers(configurationStoreServers);
+                // Use configurationMetadataStoreUrl from command line
+                
config.setConfigurationMetadataStoreUrl(configurationStoreServers);
+            }
+            if (!isBlank(configurationMetadataStoreUrl)) {
+                
config.setConfigurationMetadataStoreUrl(configurationMetadataStoreUrl);
             }
 
             if ((isBlank(config.getBrokerServiceURL()) && 
isBlank(config.getBrokerServiceURLTLS()))
                     || config.isAuthorizationEnabled()) {
-                checkArgument(!isEmpty(config.getZookeeperServers()), 
"zookeeperServers must be provided");
-                checkArgument(!isEmpty(config.getConfigurationStoreServers()),
-                        "configurationStoreServers must be provided");
+                checkArgument(!isEmpty(config.getMetadataStoreUrl()), 
"metadata store url must be provided");
+                
checkArgument(!isEmpty(config.getConfigurationMetadataStoreUrl()),
+                        "configuration metadata store url must be provided");

Review comment:
       ```suggestion
                           "configurationMetadataStoreUrl must be provided");
   ```
   




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