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https://issues.apache.org/jira/browse/NIFI-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16223273#comment-16223273
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ASF GitHub Bot commented on NIFI-4539:
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GitHub user n-agetsu opened a pull request:
https://github.com/apache/nifi/pull/2233
NIFI-4539 ExtractGrok - Add support returning only named captures
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This closes #2233
----
commit 51ad5d4c6c94f5ba0c7d462f2200a8fd25c5e43e
Author: Norito Agetsuma <[email protected]>
Date: 2017-10-28T05:20:34Z
NIFI-4539 ExtractGrok - Add support returning only named captures
----
> ExtractGrok - Add support returning only named captures
> -------------------------------------------------------
>
> Key: NIFI-4539
> URL: https://issues.apache.org/jira/browse/NIFI-4539
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Extensions
> Affects Versions: 1.4.0
> Reporter: Norito Agetsuma
>
> ExtractGrok support named captures only option.
> Currently, ExtractGrok returns all matches for a grok pattern. In some case,
> this is verbose.
> Following example parse apache common access log.
> {noformat}
> 83.149.9.216 - - [17/May/2015:10:05:03 +0000] "GET
> /presentations/logstash-monitorama-2013/images/kibana-search.png HTTP/1.1"
> 200 203023 "http://semicomplete.com/presentations/logstash-monitorama-2013/";
> "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_1) AppleWebKit/537.36 (KHTML,
> like Gecko) Chrome/32.0.1700.77 Safari/537.36
> {noformat}
> Disable named captures only
> {noformat}
> {
> "grok.auth": "-",
> "grok.timestamp": "17/May/2015:10:05:03 +0000",
> "grok.httpversion": "1.1",
> "grok.HOUR": "10",
> "grok.ident": "-",
> "grok.SECOND": "03",
> "grok.HTTPD_COMMONLOG": "83.149.9.216 - - [17/May/2015:10:05:03 +0000]
> \"GET /presentations/logstash-monitorama-2013/images/kibana-search.png
> HTTP/1.1\" 200 203023",
> "grok.USERNAME": "[-, -]",
> "grok.IP": "83.149.9.216",
> "grok.clientip": "83.149.9.216",
> "grok.verb": "GET",
> "grok.EMAILADDRESS": "[null, null]",
> "grok.request":
> "/presentations/logstash-monitorama-2013/images/kibana-search.png",
> "grok.EMAILLOCALPART": "[null, null]",
> "grok.INT": "+0000",
> "grok.BASE10NUM": "[1.1, 200, 203023]",
> "grok.YEAR": "2015",
> "grok.IPV4": "83.149.9.216",
> "grok.MINUTE": "05",
> "grok.HOSTNAME": "[null, null, null]",
> "grok.USER": "[-, -]",
> "grok.response": "200",
> "grok.bytes": "203023",
> "grok.TIME": "10:05:03",
> "grok.MONTH": "May",
> "grok.MONTHDAY": "17"
> }
> {noformat}
> Enable named captures only
> {noformat}
> {
> "grok.request":
> "/presentations/logstash-monitorama-2013/images/kibana-search.png",
> "grok.auth": "-",
> "grok.ident": "-",
> "grok.timestamp": "17/May/2015:10:05:03 +0000",
> "grok.httpversion": "1.1",
> "grok.clientip": "83.149.9.216",
> "grok.response": "200",
> "grok.bytes": "203023",
> "grok.verb": "GET"
> }
> {noformat}
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