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Fix: Use config value for retryOnConflict in Bulk operations
Co-authored-by: ruflin <ruflin@elastic.co>
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‎.ai/2025-01-27-elastica-issue-2219-fix.patch‎

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--- a/src/Bulk.php
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+++ b/src/Bulk.php
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@@ -131,6 +131,10 @@ class Bulk
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*/
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public function addDocument(Document $document, ?string $opType = null): self
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{
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+ if (!$document->hasRetryOnConflict()) {
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+ $retry = $this->_client->getConfigValue('retryOnConflict', 0);
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+
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+ if ($retry > 0) {
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+ $document->setRetryOnConflict($retry);
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+ }
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+ }
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+
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$action = AbstractDocumentAction::create($document, $opType);
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return $this->addAction($action);
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@@ -155,6 +159,10 @@ class Bulk
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*/
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public function addScript(AbstractScript $script, ?string $opType = null): self
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{
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+ if (!$script->hasRetryOnConflict()) {
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+ $retry = $this->_client->getConfigValue('retryOnConflict', 0);
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+
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+ if ($retry > 0) {
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+ $script->setRetryOnConflict($retry);
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+ }
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+ }
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+
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$action = AbstractDocumentAction::create($script, $opType);
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return $this->addAction($action);

‎.ai/2025-01-27-elastica-issue-2219-investigation-report.md‎

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# Elastica Issue #2219 Investigation Report
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## Issue Summary
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**Issue**: BC Break from 7.3.1 to 7.3.2 - `Call to a member function hasConnection() on null`
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**Repository**: https://github.com/ruflin/Elastica/issues/2219
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**Date**: January 27, 2025
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## Root Cause Analysis
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### The Problem
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The error occurs in `src/Bulk.php` at lines 135 and 161 where the code attempts to call `hasConnection()` and `getConnection()` methods on the Client object, but these methods no longer exist in version 7.3.2.
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### What Changed Between 7.3.1 and 7.3.2
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The critical change was introduced in the `src/Bulk.php` file where the following code was added:
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```php
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// In addDocument() method (line ~135)
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if (!$document->hasRetryOnConflict() && $this->_client->hasConnection() && $this->_client->getConnection()->hasParam('retryOnConflict') && ($retry = $this->_client->getConnection()->getParam('retryOnConflict')) > 0) {
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$document->setRetryOnConflict($retry);
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}
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// In addScript() method (line ~161)
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if (!$script->hasRetryOnConflict() && $this->_client->hasConnection() && $this->_client->getConnection()->hasParam('retryOnConflict') && ($retry = $this->_client->getConnection()->getParam('retryOnConflict')) > 0) {
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$script->setRetryOnConflict($retry);
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}
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```
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### Why This Breaks
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1. **Connection Class Removed**: In Elastica 8.0, the `Elastica\Connection` class and related classes were removed (as documented in CHANGELOG.md lines 114-121).
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2. **hasConnection() Method Missing**: The `Client` class no longer has a `hasConnection()` method since the Connection class was removed.
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3. **getConnection() Method Missing**: Similarly, `getConnection()` method no longer exists.
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4. **Architecture Change**: Elastica 8.0+ uses the official Elasticsearch PHP client's transport layer instead of the custom Connection classes.
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## Current State Analysis
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### What Works Now
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The current codebase (9.x branch) has already been fixed. The problematic code in `src/Bulk.php` now uses:
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```php
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// Current working implementation
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if (!$document->hasRetryOnConflict()) {
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$retry = $this->_client->getConfigValue('retryOnConflict', 0);
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if ($retry > 0) {
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$document->setRetryOnConflict($retry);
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}
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}
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```
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### The Fix Applied
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The fix replaces the old Connection-based approach with direct configuration access:
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- `$this->_client->hasConnection()` → removed
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- `$this->_client->getConnection()->hasParam('retryOnConflict')` → `$this->_client->getConfigValue('retryOnConflict', 0)`
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- `$this->_client->getConnection()->getParam('retryOnConflict')` → `$this->_client->getConfigValue('retryOnConflict', 0)`
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## Proposed Solution
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### For Version 7.3.2 (Immediate Fix)
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The issue can be resolved by applying the same fix that was implemented in later versions:
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```php
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// Replace the problematic code in src/Bulk.php
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// OLD (broken):
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if (!$document->hasRetryOnConflict() && $this->_client->hasConnection() && $this->_client->getConnection()->hasParam('retryOnConflict') && ($retry = $this->_client->getConnection()->getParam('retryOnConflict')) > 0) {
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$document->setRetryOnConflict($retry);
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}
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// NEW (working):
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if (!$document->hasRetryOnConflict()) {
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$retry = $this->_client->getConfigValue('retryOnConflict', 0);
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if ($retry > 0) {
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$document->setRetryOnConflict($retry);
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}
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}
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```
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### For Long-term (Recommended)
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Users should upgrade to Elastica 8.0+ where this issue has been resolved and the architecture has been modernized.
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## Implementation Steps
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1. **Immediate Fix**: Apply the configuration-based approach instead of Connection-based approach
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2. **Testing**: Verify that retryOnConflict functionality still works correctly
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3. **Documentation**: Update any documentation that references the old Connection API
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4. **Migration Guide**: Provide clear migration path for users upgrading from 7.3.1
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## Related Pull Requests
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- No specific PRs were found for issue #2219
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- The fix was implemented as part of the broader 8.0 architecture changes
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- Related to PR #2188 which removed Connection classes
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## Next Steps
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1. Create a patch for version 7.3.2 with the configuration-based fix
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2. Test the fix thoroughly
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3. Release 7.3.3 with the fix
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4. Update documentation and migration guides

‎.ai/2025-01-27-elastica-issue-2219-solution.md‎

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# Solution for Elastica Issue #2219
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## Problem Summary
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**Issue**: BC Break from 7.3.1 to 7.3.2 - `Call to a member function hasConnection() on null`
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**Root Cause**: Code in `src/Bulk.php` was trying to use removed Connection API methods
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**Impact**: Any bulk operations (populate, etc.) fail with fatal error
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## Root Cause Analysis
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### What Happened
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In version 7.3.2, code was added to `src/Bulk.php` that attempted to use the old Connection API:
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```php
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// BROKEN CODE (7.3.2)
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if (!$document->hasRetryOnConflict() && $this->_client->hasConnection() && $this->_client->getConnection()->hasParam('retryOnConflict') && ($retry = $this->_client->getConnection()->getParam('retryOnConflict')) > 0) {
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$document->setRetryOnConflict($retry);
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}
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```
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### Why It Failed
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1. **Connection Class Removed**: In Elastica 8.0, the `Elastica\Connection` class was removed
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2. **Methods Don't Exist**: `hasConnection()` and `getConnection()` methods no longer exist on Client
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3. **Architecture Change**: Elastica 8.0+ uses the official Elasticsearch PHP client's transport layer
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## Solution Approaches
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### Approach 1: Quick Fix for 7.3.2 (Recommended)
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Replace the Connection-based code with configuration-based approach:
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```php
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// FIXED CODE
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if (!$document->hasRetryOnConflict()) {
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$retry = $this->_client->getConfigValue('retryOnConflict', 0);
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if ($retry > 0) {
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$document->setRetryOnConflict($retry);
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}
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}
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```
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### Approach 2: Upgrade to 8.0+ (Long-term)
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The issue is already fixed in Elastica 8.0+ where the architecture was modernized.
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## Implementation
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### Step 1: Apply the Fix
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Replace the problematic code in `src/Bulk.php` at two locations:
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1. **In `addDocument()` method** (around line 135)
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2. **In `addScript()` method** (around line 161)
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### Step 2: Test the Fix
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```php
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// Test code to verify the fix works
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$client = new \Elastica\Client(['hosts' => ['localhost:9200']]);
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$index = $client->getIndex('test');
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$document = new \Elastica\Document('1', ['field' => 'value']);
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// This should not throw the hasConnection() error
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$bulk = new \Elastica\Bulk($client);
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$bulk->addDocument($document);
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$bulk->send();
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```
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### Step 3: Verify Configuration
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Ensure that `retryOnConflict` is properly configured:
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```php
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$client = new \Elastica\Client([
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'hosts' => ['localhost:9200'],
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'retryOnConflict' => 3 // This will now work correctly
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]);
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```
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## Files to Modify
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### src/Bulk.php
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- **Line ~135**: Replace Connection-based retry logic in `addDocument()`
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- **Line ~161**: Replace Connection-based retry logic in `addScript()`
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## Testing Strategy
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### Unit Tests
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1. Test that bulk operations work without Connection API
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2. Test that retryOnConflict configuration is respected
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3. Test both Document and Script bulk operations
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### Integration Tests
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1. Test with actual Elasticsearch instance
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2. Test bulk operations with retryOnConflict > 0
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3. Test bulk operations with retryOnConflict = 0 (default)
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## Migration Path
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### For Users on 7.3.1
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1. **Option A**: Apply the fix patch to 7.3.2
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2. **Option B**: Stay on 7.3.1 until ready to upgrade to 8.0+
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### For Users on 7.3.2
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1. **Immediate**: Apply the fix patch
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2. **Long-term**: Plan upgrade to 8.0+ for full architecture benefits
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### For New Users
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- Use Elastica 8.0+ where this issue doesn't exist
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## Related Issues
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- **Issue #2219**: The main issue being addressed
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- **PR #2188**: Removed Connection classes (8.0)
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- **PR #2184**: Ported retryOnConflict from 7.x (8.0)
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## Next Steps
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1. **Immediate**: Create 7.3.3 release with the fix
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2. **Documentation**: Update upgrade guides
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3. **Communication**: Notify users about the fix
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4. **Long-term**: Encourage migration to 8.0+
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## Code Quality
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- The fix maintains backward compatibility
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- No breaking changes to public API
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- Preserves existing functionality
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- Uses modern configuration approach

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