# Format version is not supported (resource BufferedChecksumIndexInput (SimpleFSIndexInput))

**URL:** <https://discuss.elastic.co/t/format-version-is-not-supported-resource-bufferedchecksumindexinput-simplefsindexinput/336348>\
**Category:** Elasticsearch\
**Tags:** reindex\
**Created:** [June 19, 2023, 10:44am UTC](https://discuss.elastic.co/t/format-version-is-not-supported-resource-bufferedchecksumindexinput-simplefsindexinput/336348 "2023-06-19T10:44:47Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![amal\_srivastava](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/amal_srivastava/32/122298_2.png) [@amal\_srivastava](https://discuss.elastic.co/u/amal_srivastava)\
**Post date:** [June 19, 2023, 10:44am UTC](https://discuss.elastic.co/t/format-version-is-not-supported-resource-bufferedchecksumindexinput-simplefsindexinput/336348/1 "2023-06-19T10:44:48Z")

</div>

Hi,

One of my elasticsearch index is red and when i dig this into deep i am getting this below error

```auto
GET _cluster/allocation/explain

```

{  
"index" : "design",  
"shard" : 0,  
"primary" : true,  
"current\_state" : "unassigned",  
"unassigned\_info" : {  
"reason" : "CLUSTER\_RECOVERED",  
"at" : "2023-06-19T09:58:16.814Z",  
"last\_allocation\_status" : "no\_valid\_shard\_copy"  
},  
"can\_allocate" : "no\_valid\_shard\_copy",  
"allocate\_explanation" : "cannot allocate because all found copies of the shard are either stale or corrupt",  
"node\_allocation\_decisions" : [  
{  
"node\_id" : "B8GDi6pHRa6NCpxRXTmK1A",  
"node\_name" : "127.0.0.1",  
"transport\_address" : "127.0.0.1:15155",  
"node\_decision" : "no",  
"store" : {  
"in\_sync" : true,  
"allocation\_id" : "Mt7w6tFXRYOpb4GunXEOuQ",  
"store\_exception" : {  
"type" : "index\_format\_too\_old\_exception",  
"reason" : """Format version is not supported (resource BufferedChecksumIndexInput(SimpleFSIndexInput(path="C:\Users\rishabh2\Pulse\atom\_v6\server\data\beehive\nodes\0\indices\z8SOcefcSKGCkdavUoS9Dg\0\index\segments\_5s"))): 1229866072 (needs to be between 1071082519 and 1071082519). This version of Lucene only supports indexes created with release 6.0 and later."""  
}  
}  
}  
]  
}

I am using opendistro/elasticsearch 7.10.2. and there is not any version change.

---

<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:** [June 19, 2023, 10:44am UTC](https://discuss.elastic.co/t/format-version-is-not-supported-resource-bufferedchecksumindexinput-simplefsindexinput/336348/2 "2023-06-19T10:44:48Z")

</div>

OpenSearch/OpenDistro are AWS run products and differ from the original Elasticsearch and Kibana products that Elastic builds and maintains. You may need to contact them directly for further assistance.

(This is an automated response from your friendly Elastic bot. Please report this post if you have any suggestions or concerns :elasticheart: )

---

<div class="post-metadata">

**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [June 19, 2023, 11:14am UTC](https://discuss.elastic.co/t/format-version-is-not-supported-resource-bufferedchecksumindexinput-simplefsindexinput/336348/3 "2023-06-19T11:14:44Z")

</div>

> [@amal\_srivastava](#):
>
> I am using opendistro/elasticsearch 7.10.2. and there is not any version change.

As the bot says: you're using something that isn't really Elasticsearch, it's a different product, so will need to look elsewhere to find the help you need.

---

<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:** [July 17, 2023, 11:15am UTC](https://discuss.elastic.co/t/format-version-is-not-supported-resource-bufferedchecksumindexinput-simplefsindexinput/336348/4 "2023-07-17T11:15:19Z")

</div>

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