# Best way to index IIS logs, Weblogic logs, etc

**URL:** <https://discuss.elastic.co/t/best-way-to-index-iis-logs-weblogic-logs-etc/109422>\
**Category:** Logstash\
**Created:** [November 28, 2017, 3:31pm UTC](https://discuss.elastic.co/t/best-way-to-index-iis-logs-weblogic-logs-etc/109422 "2017-11-28T15:31:43Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mrc](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@mrc](https://discuss.elastic.co/u/mrc)\
**Post date:** [November 28, 2017, 3:31pm UTC](https://discuss.elastic.co/t/best-way-to-index-iis-logs-weblogic-logs-etc/109422/1 "2017-11-28T15:31:43Z")

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Hello,

I was able to successfully index Weblogic HTTP access logs into ElasticSearch thru Logstash. I am now tasked to do IIS logs - I was under the impression that when I process the IIS logs the new fields will be added to the current logstash.\* indexes in ES, but that was not the case.

Can anyone provide any feedback on how to tackle this problem.

Thank you,  
MRC

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**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [November 28, 2017, 3:40pm UTC](https://discuss.elastic.co/t/best-way-to-index-iis-logs-weblogic-logs-etc/109422/2 "2017-11-28T15:40:49Z")

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Unless you've configured the elasticsearch output otherwise all events will be sent to logstash-\* indexes. How do you know the IIS logs reach Logstash in the first place?

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**Author:** ![mrc](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@mrc](https://discuss.elastic.co/u/mrc)\
**Post date:** [November 28, 2017, 3:57pm UTC](https://discuss.elastic.co/t/best-way-to-index-iis-logs-weblogic-logs-etc/109422/3 "2017-11-28T15:57:25Z")

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Thank you for your quick response. I am manually processing the IIS logs.

I have processed Weblogic logs and now I want to add the IIS logs to it. When I processed IIS logs got several errors and nothing got pushed or created on ES. I am processing old IIS logs.

For testing purposes I created new instance of ES and processed the same logs everything went well.

Thanks  
MRC

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**Author:** ![mrc](https://avatars.discourse-cdn.com/v4/letter/m/43a26b/32.png) [@mrc](https://discuss.elastic.co/u/mrc)\
**Post date:** [December 4, 2017, 7:30pm UTC](https://discuss.elastic.co/t/best-way-to-index-iis-logs-weblogic-logs-etc/109422/4 "2017-12-04T19:30:42Z")

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I have retired processing IIS logs and this time I didn't get any error and they were successfully processed. Thank you Magnus for your help. This can request can be closed.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 1, 2018, 7:30pm UTC](https://discuss.elastic.co/t/best-way-to-index-iis-logs-weblogic-logs-etc/109422/5 "2018-01-01T19:30:52Z")

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