madrob commented on a change in pull request #10:
URL: https://github.com/apache/solr/pull/10#discussion_r596299172



##########
File path: 
solr/solrj/src/java/org/apache/solr/common/cloud/PerReplicaStatesOps.java
##########
@@ -65,13 +65,7 @@ private void persist(List<PerReplicaStates.Operation> 
operations, String znode,
                     Op.create(path, null, 
zkClient.getZkACLProvider().getACLsToAdd(path), CreateMode.PERSISTENT) :
                     Op.delete(path, -1));
         }
-        try {
-            zkClient.multi(ops, true);
-        } catch (KeeperException e) {
-          log.error("Multi-op exception: {}", zkClient.getChildren(znode, 
null, true));
-          throw e;
-        }
-
+        zkClient.multi(ops, true);

Review comment:
       this snuck in and shouldn't be here, will remove before next iteration.

##########
File path: 
solr/core/src/java/org/apache/solr/core/snapshots/SolrSnapshotsTool.java
##########
@@ -226,10 +226,9 @@ public void describeSnapshot(String collectionName, String 
snapshotName) {
       }
 
       String indexDirPath = coreSnap.getIndexDirPath();
-      if (pathPrefix.isPresent()) {
+      if (pathPrefix != null) {
         // If the path prefix is specified, rebuild the path to the index 
directory.
-        Path t = new Path(coreSnap.getIndexDirPath());
-        indexDirPath = (new Path(pathPrefix.get(), 
t.toUri().getPath())).toString();
+        indexDirPath = new Path(pathPrefix, 
coreSnap.getIndexDirPath()).toString();

Review comment:
       Oh, uh, I didn't even notice. Thanks for pointing this out, I'll take a 
closer look.

##########
File path: solr/core/src/java/org/apache/solr/core/MMapDirectoryFactory.java
##########
@@ -61,8 +60,7 @@ public void init(NamedList args) {
 
   @Override
   protected Directory create(String path, LockFactory lockFactory, DirContext 
dirContext) throws IOException {
-    // we pass NoLockFactory, because the real lock factory is set later by 
injectLockFactory:

Review comment:
       yes

##########
File path: 
solr/core/src/java/org/apache/solr/core/snapshots/SolrSnapshotsTool.java
##########
@@ -226,10 +226,9 @@ public void describeSnapshot(String collectionName, String 
snapshotName) {
       }
 
       String indexDirPath = coreSnap.getIndexDirPath();
-      if (pathPrefix.isPresent()) {
+      if (pathPrefix != null) {
         // If the path prefix is specified, rebuild the path to the index 
directory.
-        Path t = new Path(coreSnap.getIndexDirPath());
-        indexDirPath = (new Path(pathPrefix.get(), 
t.toUri().getPath())).toString();
+        indexDirPath = new Path(pathPrefix, 
coreSnap.getIndexDirPath()).toString();

Review comment:
       Yea, this change is still fine, the old code is doing a bunch of extra 
conversions between Hadoop Path, URI, and String, and back and forth.




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