# How to add a timestamp field with the indexing time in elasticsearch
**URL:** https://discuss.elastic.co/t/how-to-add-a-timestamp-field-with-the-indexing-time-in-elasticsearch/62723
**Category:** Elasticsearch
**Created:** [October 11, 2016, 2:32pm UTC](https://discuss.elastic.co/t/how-to-add-a-timestamp-field-with-the-indexing-time-in-elasticsearch/62723 "2016-10-11T14:32:16Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@ericpietro](https://discuss.elastic.co/u/ericpietro)
#### Post date: [October 11, 2016, 2:32pm UTC](https://discuss.elastic.co/t/how-to-add-a-timestamp-field-with-the-indexing-time-in-elasticsearch/62723/1 "2016-10-11T14:32:16Z")
hi everybody,
this is my problem:
before 2.0.0 elasticsearch version, elasticsearch add a field called "\_timestamp" when indexing each log line..
but now, it's deprecated. 😪
my elasticsezarch version is : 2.3.3.
how can I do the same thing ? Create a field called "indexing\_ts" and move the current indexing time in it ?
I have the @timestamp field added by logstash (I call it : "parsing\_ts")
but it is missing the moment when elasticsearch indexes (writes) the line log in my cluster.
I need it to calculate the lag between parsing and indexing time ...
Do u understand my demand ?
ty very much
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### Author:  [@cbuescher](https://discuss.elastic.co/u/cbuescher)
#### Post date: [October 11, 2016, 3:09pm UTC](https://discuss.elastic.co/t/how-to-add-a-timestamp-field-with-the-indexing-time-in-elasticsearch/62723/2 "2016-10-11T15:09:37Z")
Hi,
there has been some discussion about this kind of question already in [this issue](https://github.com/elastic/elasticsearch/issues/15644). The overall suggestion there seems to be that the new Ingest node feature can be leveraged to add a field to the document when it enters the cluster. Also, there's some very [recent discussion](https://github.com/elastic/elasticsearch/issues/20859) of adding something like a `_last_modified` field with clearer semantics to take part of that load.
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### Author:  [@ericpietro](https://discuss.elastic.co/u/ericpietro)
#### Post date: [October 12, 2016, 9:23am UTC](https://discuss.elastic.co/t/how-to-add-a-timestamp-field-with-the-indexing-time-in-elasticsearch/62723/3 "2016-10-12T09:23:18Z")
ty Christoph for your answer.
unfortunately, it means that what i expect doesn't exist in elasticsearch v2.3.3...☹
maybe a new field can be inserted in a future version (\_last\_modifed) ...
as one guy wrote in the discussion you show me, why the "\_timestamp" has been deleted ? ☹
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 10:13pm UTC](https://discuss.elastic.co/t/how-to-add-a-timestamp-field-with-the-indexing-time-in-elasticsearch/62723/4 "2017-07-05T22:13:05Z")