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chore: remove duplicate address check #1121

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@caicancai caicancai commented Jun 29, 2024

Motivation:

In NodeImpl, the address is checked at the beginning. I don't think it needs to be checked again later.

        if (this.serverId.getIp().equals(Utils.IP_ANY)) {
            LOG.error("Node can't started from IP_ANY.");
            return false;
        }

        if (!NodeManager.getInstance().serverExists(this.serverId.getEndpoint())) {
            LOG.error("No RPC server attached to, did you forget to call addService?");
            return false;
        }

Modification:

Describe the idea and modifications you've done.

Result:

Fixes #.

If there is no issue then describe the changes introduced by this PR.

Summary by CodeRabbit

  • Refactor
    • Streamlined node addition process for improved performance by removing unnecessary server existence check.

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coderabbitai bot commented Jun 29, 2024

Walkthrough

In the NodeManager.java file, the add method has been simplified by removing the conditional check that verified the existence of a server based on the node's endpoint before adding the node to the nodeMap. This modification directly streamlines the method to always add the node without pre-checking, which may improve performance and reduce code complexity.

Changes

File Path Change Summary
jraft-core/src/main/java/com/alipay/sofa/jraft/NodeManager.java Removed the conditional check for server existence in the add method and directly added the node to nodeMap.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant NodeManager
    participant nodeMap

    Client ->> NodeManager: add(Node)
    NodeManager -->> nodeMap: add(Node without pre-check)
    nodeMap -->> NodeManager: Confirmation
    NodeManager -->> Client: Node added successfully
Loading

Poem

In the world of nodes, where endpoints unite,
A streamline change brings a simpler delight.
Conditional checks, we now forgo,
Directly adding - in one smooth flow.
A swifter path, without the bind,
Code refined, unfettered mind. 🚀


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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between a71fae7 and 5f55dc6.

Files selected for processing (1)
  • jraft-core/src/main/java/com/alipay/sofa/jraft/NodeManager.java (1 hunks)
Additional comments not posted (1)
jraft-core/src/main/java/com/alipay/sofa/jraft/NodeManager.java (1)

Line range hint 39-57: Ensure that duplicate nodes are handled appropriately.

The removal of the existence check for the server based on the node's endpoint simplifies the add method. However, it introduces the risk of duplicate nodes being added to the nodeMap and groupMap. Ensure that the rest of the codebase handles such duplicates appropriately, or consider re-adding a similar check to avoid potential issues.

Verification successful

Duplicate node handling is correctly implemented.

The add method in the NodeManager class uses the putIfAbsent method to ensure that duplicate nodes are not added to the nodeMap. This effectively prevents the addition of nodes with the same NodeId.

  • jraft-core/src/main/java/com/alipay/sofa/jraft/NodeManager.java: add method implementation
Scripts executed

The following scripts were executed for the analysis:


Script:

#!/bin/bash
# Description: Verify that duplicate nodes are handled appropriately in the codebase.

# Test: Search for duplicate handling logic. Expect: Logic to handle duplicates or prevent them.
rg --type java 'NodeManager'

Length of output: 12719



Script:

#!/bin/bash
# Extract the implementation of the `add` method in `NodeManager` to verify duplicate handling logic.
ast-grep --lang java --pattern 'class NodeManager {
  $$$
  public boolean add(Node node) {
    $$$
  }
  $$$
}' 

Length of output: 114



Script:

#!/bin/bash
# List all methods in the `NodeManager` class to understand its structure and locate the `add` method.
ast-grep --lang java --pattern 'class NodeManager {
  $$$
}' 

Length of output: 62



Script:

#!/bin/bash
# Search for the `add` method in the `NodeManager` class to verify its implementation.
rg --type java 'public boolean add' -A 10

Length of output: 25009

@caicancai caicancai closed this Jun 30, 2024
@caicancai caicancai reopened this Jun 30, 2024
@caicancai
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caicancai commented Jul 1, 2024

I tested it over the weekend and this change may cause the cli to fail, but I looked at the logs and it seems to have nothing to do with my change.
cc @fengjiachun

@caicancai caicancai closed this Jul 9, 2024
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