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Posted to notifications@zookeeper.apache.org by GitBox <gi...@apache.org> on 2022/12/06 08:46:08 UTC

[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

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:
   *[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.
   
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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
        *
   ```
   
   
   
   ---
   
   <details><summary><b>ℹī¸ Learn about @sonatype-lift commands</b></summary>
   
   You can reply with the following commands. For example, reply with ***@sonatype-lift ignoreall*** to leave out all findings.
   | **Command** | **Usage** |
   | ------------- | ------------- |
   | `@sonatype-lift ignore` | Leave out the above finding from this PR |
   | `@sonatype-lift ignoreall` | Leave out all the existing findings from this PR |
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   ---
   
   Was this a good recommendation?
   [ [🙁 Not relevant](https://www.sonatype.com/lift-comment-rating?comment=358311402&lift_comment_rating=1) ] - [ [😕 Won't fix](https://www.sonatype.com/lift-comment-rating?comment=358311402&lift_comment_rating=2) ] - [ [😑 Not critical, will fix](https://www.sonatype.com/lift-comment-rating?comment=358311402&lift_comment_rating=3) ] - [ [🙂 Critical, will fix](https://www.sonatype.com/lift-comment-rating?comment=358311402&lift_comment_rating=4) ] - [ [😊 Critical, fixing now](https://www.sonatype.com/lift-comment-rating?comment=358311402&lift_comment_rating=5) ]



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