Unable to update analyzer

I have used tokenizer as below:
"text_general_likely_new": {
"tokenizer": "standard ",
"filter": [

But I think there was a space like "standard " while defining tokenizer.So it is showing error like:

"error": {
"root_cause": [
"type": "exception",
"reason": "Failed to verify index [historical_new/QGeFAxAUS7qHd4NlgeC_5g]"
"type": "exception",
"reason": "Failed to verify index [historical_new/QGeFAxAUS7qHd4NlgeC_5g]",
"caused_by": {
"type": "illegal_argument_exception",
"reason": "Custom Analyzer [text_general_likely] failed to find tokenizer under name [standard ]"
"status": 500

Now I changed it without space like: "tokenizer": "standard" but still showing same error changes doesn't it.

Please let me know solution for it.

Which version of es are you using ? There was a bug at some point that made any invalid updates to the setting of a closed index non recoverable. This was fixed in 5.4.1:

If you are on 5.x you should upgrade to the latest version: 5.5.2 which has the fix for this issue.

Thanks..... I am using elasticsearch 5.3.0

Then you are affected by this bug and should upgrade to 5.5 which has a fix.

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