从 S3 快照还原 Elasticsearch

问：

我们正在尝试从 S3 存储桶还原快照。快照是从不同的集群（7.12）获取的，并在不同的集群（7.17）中恢复。

以下是还原活动期间的错误

"error":{"root_cause":[{"type":"process_cluster_event_timeout_exception","reason":"failed to process cluster event (add-block-index-to-close [[cib_/MAZVfK1fR2aQL2op_bMAhg]]) within 30s"}],"type":"process_cluster_event_timeout_exception","reason":"failed to process cluster event (add-block-index-to-close [[cib_/MAZVfK1fR2aQL2op_bMAhg]]) within 30s"},"status":503}

我们正在使用自动化脚本来关闭索引并使用以下语句执行还原

curl -X POST -u admin:$passw "https://$HOST_NAME:9201/$index/_close"

      curl -X POST -u admin:$passw "https://$HOST_NAME:9201/_snapshot/$REPOSITORY_NAME/$snapshotname/_restore?wait_for_completion=true" -H 'Content-Type:application/json' -d'
     {
      "indices": "'"$index"'",
      "ignore_unavailable": true,
      "include_global_state": false,
      "partial": false,
      "index_settings":{
      "index.routing.allocation.exclude.app": "someapp"
                       }
       }
      ' >> s3repo_cibrcdn.json 

有人可以帮助解决错误吗？我们没有提到任何超时