`ignore` in index creation

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1

I have the following statement:

es.indices.create(index=index_name,ignore=[400,404])

In a sample program that I created, the index got created again though it was already existing on the cluster. So what exactly does 'ignore' do in the creation of index.

2

An index can not be created again if one already exists.

3

But the index did get created when I passed the ignore argument

4

I see.

Ignore parameter means here that if you get back a 400 or 404 status code, don't fail and continue.

5

So it just appends to the existing index? Cause that is what happened in my execution

6

It appends what?

7

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