Splunk Search

Human Readable Indexed Logs

Splunkduck09
Explorer

Hi All, I would like to read Splunk indexed log/data using text editor tool (like Notepad, etc.). I understand Splunk indexed logs are compressed and further processed which creates a Splunk only readable format (Not-Human readable) - which works well for searching or other capabilities of Splunk. 

But, wondering if there is way to convert these indexed logs into a human readable format?  

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0 Karma

livehybrid
SplunkTrust
SplunkTrust

Hi @Splunkduck09 

You can use the "dump" Splunk command to export from the proprietary Splunk bucket format back in to Plain text using the following example:

Export all events from index "bigdata" to the location "YYYYmmdd/HH/host" at "$SPLUNK_HOME/var/run/splunk/dispatch/<sid>/dump/" directory on local disk with "MyExport" as the prefix of export filenames. Partitioning of the export data is achieved by eval preceding the dump command.

index=bigdata | eval _dstpath=strftime(_time, "%Y%m%d/%H") + "/" + host | dump basefilename=MyExport fields="_time, host, source, sourcetype"

For more info check out https://docs.splunk.com/Documentation/Splunk/9.4.1/SearchReference/Dump

You can also dump the data using the CLI instead of SPL if required - check out https://docs.splunk.com/Documentation/Splunk/9.4.0/Search/Exportdatausingdumpcommand

Once this is done you will be able to open the resulting file in a standard text editor.

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kiran_panchavat
Champion

@Splunkduck09 

We must follow the outlined process to back up and restore the data. As mentioned, after restoration, you can query the data using the search head. However, it’s not feasible to directly export it into a human-readable format.

https://docs.splunk.com/Documentation/Splunk/9.2.0/Indexer/Backupindexeddata 

https://docs.splunk.com/Documentation/Splunk/9.2.0/Indexer/Restorearchiveddata 

https://docs.splunk.com/Documentation/Splunk/latest/Indexer/HowSplunkstoresindexes 

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Splunkduck09
Explorer

Hi Kiran,

Thanks for the replying.

Use case:  I would like to backup indexed Splunk logs into a third party backup/restore system say on daily or weekly basis and it is required to be in human readable format. So they can be retrieved anytime in future within the backup/restore system and can be read with a notepad or other similar tool if needed  

Would love to know your thoughts on above? 

0 Karma

kiran_panchavat
Champion

@Splunkduck09 

The simplest approach is to use Splunk’s search interface. Run a search query for the data you want (e.g., index=your_index), then export the results. In the Splunk Web UI, after running your search, click the "Export" button, choose a format like CSV, JSON, or raw text, and download the file. This will give you the raw event data in a readable format that you can open in a text editor.
 
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bowesmana
SplunkTrust
SplunkTrust

You can search them and see the raw data in the search window, you can export them as CSV files, but what's your use case? Seems like an odd thing to want to do... 🙂

Splunkduck09
Explorer

Hey bowesmana, 

Thanks for the replying.

Use case:  I would like to backup indexed Splunk logs into a third party backup/restore system say on daily or weekly basis and it is required to be in human readable format. So they can be retrieved anytime in future within the backup/restore system and can be read with a notepad or other similar tool if needed  

Would love to know your thoughts on above? 

0 Karma

livehybrid
SplunkTrust
SplunkTrust

Hi @Splunkduck09 

I think if this is the reason then you'd be better taking a feed of the data at ingestion time rather than extracting it out from Splunk.

You could use Ingest Actions to write to S3 or NFS which might be the easiest approach - Check out https://docs.splunk.com/Documentation/Splunk/9.4.1/Data/DataIngest#Create_an_NFS_file_system_destina...

Theres also a lunch & learn video at https://www.youtube.com/watch?v=9W_4ERKTx94 which gives an overview of Ingest Actions which might help you too.

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