tlog size issue- solr cloud 6.6

[Ritvik Sharma]

Hi Guys

We have faced an issue where tlog size is increasing unnecessarily. We are
using a "heavy indexing, heavy query" approach.  We enabled hard commit
also,

solr cloud: 6.6
zk: 3.4.10
shards: 2, replication factor= 2


solrconfig,

  <autoCommit>
       <maxTime>${solr.autoCommit.maxTime:15000}</maxTime>
      <maxDocs>10000</maxDocs>
       <openSearcher>false</openSearcher>


     </autoCommit>

    <!-- softAutoCommit is like autoCommit except it causes a
         'soft' commit which only ensures that changes are visible
         but does not ensure that data is synced to disk.  This is
         faster and more near-realtime friendly than a hard commit.
      -->

     <autoSoftCommit>
       <maxTime>${solr.autoSoftCommit.maxTime:15000}</maxTime> -->
     </autoSoftCommit>