# Failed to execute \`flush synced\`

**URL:** <https://discuss.elastic.co/t/failed-to-execute-flush-synced/248138>\
**Category:** Elasticsearch\
**Created:** [September 10, 2020, 9:00am UTC](https://discuss.elastic.co/t/failed-to-execute-flush-synced/248138 "2020-09-10T09:00:48Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![vincentduan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vincentduan/32/30691_2.png) [@vincentduan](https://discuss.elastic.co/u/vincentduan)\
**Post date:** [September 10, 2020, 9:00am UTC](https://discuss.elastic.co/t/failed-to-execute-flush-synced/248138/1 "2020-09-10T09:00:48Z")

</div>

Elasticsearch version 6.2.3  
I execute `curl -XPOST ''http://192.168.2.201:9203/myindex/_flush/synced"` .  
The result shows as follows:

```auto
{
	"_shards":{
		"total": 10,
		"successful": 6,
		"failed": 4
   },
	"myindex" : {
		"total": 10,
		"successful": 6,
		"failed": 4,
		"failures": [
		{
			"shard": 3,
			"reason": "no commit id from pre-sync flush",
			"routing": {
				"state": "STARTED",
				"primary": false,
				"node": "YK3h1SM5SZK-JloBdVCg",
				"relocating_node": null,
				"shard": 3,
				"index": "myindex",
				"allocation_id": {
					"id": "bobR0AfWQiWv24S6GzblkA"
				}
			}
		}
		···
		···
    ]
    }
}

```

The `myindex` has 5 primary shards and 1 replica. Each shards is aboud 30GB. And cluster status is GREEN.  
I am not clear how to fix this problem.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 8, 2020, 9:00am UTC](https://discuss.elastic.co/t/failed-to-execute-flush-synced/248138/2 "2020-10-08T09:00:54Z")

</div>

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