Splunk Search

文字の多いイベントに対し、REGEXが正しく処理されない

cwl
Contributor

イベントをインデックスする前に特定のフィールドの内容を transforms.conf 内の REGEX で加工しているが、4500適度(かそれ以上)の文字のイベントに対し、REGEXで指定した正規表現が正しく処理されない。

0 Karma
1 Solution

cwl
Contributor

transforms.conf 内の REGEX はデフォルトで 4096 文字までしか処理しません。4096 以上の文字を処理したい場合、transforms.conf に LOOKAHEAD を追加し、文字数を指定する必要があります。

http://docs.splunk.com/Documentation/Splunk/latest/Admin/Transformsconf

LOOKAHEAD = <integer>
* NOTE: This option is only valid for index-time field extractions.
* Optional. Specifies how many characters to search into an event.
* Defaults to 4096. You may want to increase this value if you have event line lengths that
exceed 4096 characters (before linebreaking).

View solution in original post

0 Karma

cwl
Contributor

transforms.conf 内の REGEX はデフォルトで 4096 文字までしか処理しません。4096 以上の文字を処理したい場合、transforms.conf に LOOKAHEAD を追加し、文字数を指定する必要があります。

http://docs.splunk.com/Documentation/Splunk/latest/Admin/Transformsconf

LOOKAHEAD = <integer>
* NOTE: This option is only valid for index-time field extractions.
* Optional. Specifies how many characters to search into an event.
* Defaults to 4096. You may want to increase this value if you have event line lengths that
exceed 4096 characters (before linebreaking).

0 Karma
Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.

Can’t make it to .conf25? Join us online!

Get Updates on the Splunk Community!

Can’t Make It to Boston? Stream .conf25 and Learn with Haya Husain

Boston may be buzzing this September with Splunk University and .conf25, but you don’t have to pack a bag to ...

Splunk Lantern’s Guide to The Most Popular .conf25 Sessions

Splunk Lantern is a Splunk customer success center that provides advice from Splunk experts on valuable data ...

Unlock What’s Next: The Splunk Cloud Platform at .conf25

In just a few days, Boston will be buzzing as the Splunk team and thousands of community members come together ...