[GitHub] [zookeeper] sonatype-lift[bot] commented on a diff in pull request #1943: ZOOKEEPER-4570: Admin server API for taking snapshot and stream out data

[GitBox]

sonatype-lift[bot] commented on code in PR #1943:
URL: https://github.com/apache/zookeeper/pull/1943#discussion_r1040662947


##########
zookeeper-server/src/main/java/org/apache/zookeeper/server/DataTree.java:
##########
@@ -1744,6 +1744,42 @@ public boolean deserializeZxidDigest(InputArchive ia, 
long startZxidOfSnapshot)
         }
     }
 
+    /**
+     * Serializes the lastProcessedZxid so we can get it from snapshot instead 
the snapshot file name.
+     * This is needed for performing snapshot and restore via admin server 
commands.
+     *
+     * @param oa the output stream to write to
+     * @return true if the lastProcessedZxid is serialized successfully, 
otherwise false
+     * @throws IOException
+     */
+    public boolean serializeLastProcessedZxid(final OutputArchive oa) throws 
IOException {
+        if (!ZooKeeperServer.isSerializeLastProcessedZxidEnabled()) {
+            return false;
+        }
+        oa.writeLong(lastProcessedZxid, "lastZxid");
+        return true;
+    }
+
+    /**
+     * Deserializes the lastProcessedZxid from the input stream and updates 
the lastProcessedZxid field.
+     *
+     * @param ia the input stream to read from
+     * @return true if lastProcessedZxid is deserialized successfully, 
otherwise false
+     * @throws IOException

Review Comment:
   
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##########
zookeeper-server/src/main/java/org/apache/zookeeper/server/DataTree.java:
##########
@@ -1744,6 +1744,42 @@ public boolean deserializeZxidDigest(InputArchive ia, 
long startZxidOfSnapshot)
         }
     }
 
+    /**
+     * Serializes the lastProcessedZxid so we can get it from snapshot instead 
the snapshot file name.
+     * This is needed for performing snapshot and restore via admin server 
commands.
+     *
+     * @param oa the output stream to write to
+     * @return true if the lastProcessedZxid is serialized successfully, 
otherwise false
+     * @throws IOException

Review Comment:
   
*[EmptyBlockTag](https://google.github.io/styleguide/javaguide.html#s7.1.3-javadoc-block-tags):*
  A block tag (@param, @return, @throws, @deprecated) has an empty description. 
Block tags without descriptions don't add much value for future readers of the 
code; consider removing the tag entirely or adding a description.
   
   ---
   
   
   ```suggestion
        *
   ```
   
   
   
   ---
   
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***@sonatype-lift ignoreall*** to leave out all findings.
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PR |
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 ] - [ [😕 Won't 
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 ] - [ [😑 Not critical, will 
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 ] - [ [🙂 Critical, will 
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