# Working with aliases using Java API
**URL:** https://discuss.elastic.co/t/working-with-aliases-using-java-api/5294
**Category:** Elasticsearch
**Created:** [September 1, 2011, 9:01am UTC](https://discuss.elastic.co/t/working-with-aliases-using-java-api/5294 "2011-09-01T09:01:32Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Andrew\_2](https://discuss.elastic.co/u/Andrew_2)
#### Post date: [September 1, 2011, 9:01am UTC](https://discuss.elastic.co/t/working-with-aliases-using-java-api/5294/1 "2011-09-01T09:01:32Z")
Hi everybody,
like many people here I am planing to use ES and currently I am
preparing a kind of a proof of concept. So far I can tell that ES is a
briliant piece of software and Shay is doing an incredible job
developing it.
Everything went smooth so far but now I am kind of lost ๐
I am planing to use ES in the following scenario. From a customer I
have a data feed that contains all the data I need to index. I have no
information which items have changed or were added or deleted. That
means that I will periodically do a full reindex. It is not a problem
because we are talking about ~200,000 documents that have ~50 MB in
total. This way is also the the easiest way for the client to export
their data.
From my point of view the right way is to do every reindex into a
newly created index and use an alias for client applications to
connect to the right one. That means that after a successful reindex I
need to change the alias and I can delete the old index.
And my problem is that I have no idea how to work with aliases using
the Java API ๐ I have found a thread here where Shay explained how to
get a list of existing aliases. I can do that, so I know the name of
the old index I can delete eventually. But I don't know how to alter
the alias using the Java API. Could somebody please help me? I expect
that I will end up having to prepare and send the JSON request by hand
(so maybe I am looking for a way how to send an arbitrary request
using the Java API). That is fine by me. I just need a little help
where to look ๐ Thanks!
A.
---
### Author:  [@kimchy](https://discuss.elastic.co/u/kimchy)
#### Post date: [September 1, 2011, 10:30am UTC](https://discuss.elastic.co/t/working-with-aliases-using-java-api/5294/2 "2011-09-01T10:30:02Z")
Heya, here is a sample:
client.admin().indices().prepareAliases().addAlias("my\_index",
"my\_alias").removeAlias("my\_old\_index", "my\_alias").execute().actionGet();
On Thu, Sep 1, 2011 at 12:01 PM, Andrew [ondrej.nespor@gmail.com](mailto:ondrej.nespor@gmail.com) wrote:
> Hi everybody,
>
> like many people here I am planing to use ES and currently I am
> preparing a kind of a proof of concept. So far I can tell that ES is a
> briliant piece of software and Shay is doing an incredible job
> developing it.
>
> Everything went smooth so far but now I am kind of lost ๐
>
> I am planing to use ES in the following scenario. From a customer I
> have a data feed that contains all the data I need to index. I have no
> information which items have changed or were added or deleted. That
> means that I will periodically do a full reindex. It is not a problem
> because we are talking about ~200,000 documents that have ~50 MB in
> total. This way is also the the easiest way for the client to export
> their data.
>
> From my point of view the right way is to do every reindex into a
> newly created index and use an alias for client applications to
> connect to the right one. That means that after a successful reindex I
> need to change the alias and I can delete the old index.
>
> And my problem is that I have no idea how to work with aliases using
> the Java API ๐ I have found a thread here where Shay explained how to
> get a list of existing aliases. I can do that, so I know the name of
> the old index I can delete eventually. But I don't know how to alter
> the alias using the Java API. Could somebody please help me? I expect
> that I will end up having to prepare and send the JSON request by hand
> (so maybe I am looking for a way how to send an arbitrary request
> using the Java API). That is fine by me. I just need a little help
> where to look ๐ Thanks!
>
> A.
---
### Author:  [@Andrew\_2](https://discuss.elastic.co/u/Andrew_2)
#### Post date: [September 1, 2011, 2:44pm UTC](https://discuss.elastic.co/t/working-with-aliases-using-java-api/5294/3 "2011-09-01T14:44:08Z")
Hi,
thanks! It is way easier than I expected ๐
A.
On 1 zรกล, 12:30, Shay Banon [kim...@gmail.com](mailto:kim...@gmail.com) wrote:
> Heya, here is a sample:
>
> client.admin().indices().prepareAliases().addAlias("my\_index",
> "my\_alias").removeAlias("my\_old\_index", "my\_alias").execute().actionGet();
>
> On Thu, Sep 1, 2011 at 12:01 PM, Andrew [ondrej.nes...@gmail.com](mailto:ondrej.nes...@gmail.com) wrote:
>
> > Hi everybody,
>
> > like many people here I am planing to use ES and currently I am
> > preparing a kind of a proof of concept. So far I can tell that ES is a
> > briliant piece of software and Shay is doing an incredible job
> > developing it.
>
> > Everything went smooth so far but now I am kind of lost ๐
>
> > I am planing to use ES in the following scenario. From a customer I
> > have a data feed that contains all the data I need to index. I have no
> > information which items have changed or were added or deleted. That
> > means that I will periodically do a full reindex. It is not a problem
> > because we are talking about ~200,000 documents that have ~50 MB in
> > total. This way is also the the easiest way for the client to export
> > their data.
>
> > From my point of view the right way is to do every reindex into a
> > newly created index and use an alias for client applications to
> > connect to the right one. That means that after a successful reindex I
> > need to change the alias and I can delete the old index.
>
> > And my problem is that I have no idea how to work with aliases using
> > the Java API ๐ I have found a thread here where Shay explained how to
> > get a list of existing aliases. I can do that, so I know the name of
> > the old index I can delete eventually. But I don't know how to alter
> > the alias using the Java API. Could somebody please help me? I expect
> > that I will end up having to prepare and send the JSON request by hand
> > (so maybe I am looking for a way how to send an arbitrary request
> > using the Java API). That is fine by me. I just need a little help
> > where to look ๐ Thanks!
>
> > A.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:55am UTC](https://discuss.elastic.co/t/working-with-aliases-using-java-api/5294/4 "2017-07-06T03:55:21Z")