Does wiredtiger support kvstore acceleration?

[ktc78]

I'm running Splunk Enterprise 8.1.2 & its storage engine is 'mmapv1'

And I tested to migrate 'wiredTiger' ... but I'm afraid acceleration cannot work

Belows are steps I've done on test env.

1. I made test splunk env. - just same with my officially operating splunk system

    And import some of kvstore collections into test splunk (with same collections.conf & transform.conf)

[TEST.kvstore]
field.date = number
field.id = number
field.type = string
field.version = string
accelerated_fields.test = {"id":-1, "date":-1}

2. On test splunk (with no changes has been made yet - mmap1), everything worked well

     I got similar lookup search time than original's

3. And then I changed storage engine to 'wiredTiger'
        https://docs.splunk.com/Documentation/Splunk/8.2.9/Admin/MigrateKVstore?ref=hk

 This member:

                   backupRestoreStatus : Ready

...

                                  port : 8191

                            replicaSet : DB79F8EF-3560-4A6C-B38E-FF06F1D54661

                     replicationStatus : KV store captain

                            standalone : 1

                                status : ready

                         storageEngine : wiredTiger

4. Finally I checked lookup search time on wiredtiger engine 
     "But lookup search time took much more than I expected"

       ㆍmmapv1 : 52 sec

       ㆍwiredtiger : 90 sec

So I checked what's wrong with test splunk and I found 'no kvstore accelerations'

(There it was... but disappeared after migration to wiredtiger)

Before (mmapv1)

After (wiredtiger)

I even tried to import new kvstore collection but also failed (no acceleration was made)

Does wiredtiger supports kvstore acceleration?

If so, which configuration should I use?

[woodcock]

Definitely open a support case.

[ktc78]

Sure I will

I just shared this issue on comminity for non-support version of 3.1.2 that I tested

Thank you for your advice