# ConcurrentSnapshotExecutionException: [my_repo:snapshot_2025] 无法创建快照 - 仓库 [my_repo] 已有快照正在进行中

- **ID:** `elasticsearch/snapshot-in-progress`
- **领域:** elasticsearch
- **类别:** resource_error
- **验证级别:** ai_generated
- **修复率:** 83%

## 根因

同一仓库已有快照操作正在进行中，默认情况下 Elasticsearch 不允许对同一仓库执行并发快照。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| 7.10.0 | active | — | — |
| 7.17.0 | active | — | — |
| 8.0.0 | active | — | — |
| 8.9.0 | active | — | — |

## 解决方案

1. ```
   Check the current snapshot status and wait for completion: GET _snapshot/my_repo/_current
   ```
2. ```
   Abort the running snapshot gracefully: POST _snapshot/my_repo/snapshot_name/_cancel
   ```
3. ```
   Increase the snapshot timeout to allow longer operations: PUT _cluster/settings { "persistent": { "snapshot.max_concurrent_operations": 2 } } (requires Elasticsearch 8.0+)
   ```

## 无效尝试

- **** — Deleting an in-progress snapshot may cause repository corruption or leave partial data. It is not recommended. (80% 失败率)
- **** — Snapshot state is persisted in the repository metadata, not just memory. Restarting nodes does not release the lock. (95% 失败率)
- **** — This does not resolve the conflict for the original repository; it only creates a workaround that may not be feasible for production. (60% 失败率)