How to disable transaction logs in solr cloud ?

[Pratik Patel]

Hello,

I want to disable transaction logs in solr cloud to test an experiment. I
am not sure how to do it.

I tried to comment out the following section in the solrconfig.xml file but
that results in the following error when a hard commit takes place through
autoCommit.

<!--    <updateLog>-->
<!--      <str name="dir">${solr.ulog.dir:}</str>-->
<!--      <int
name="numVersionBuckets">${solr.ulog.numVersionBuckets:65536}</int>-->
<!--    </updateLog>-->

2021-07-21 22:10:44.771 ERROR (commitScheduler-33-thread-1) [ ]
o.a.s.u.CommitTracker auto commit error...:java.lang.NullPointerException

at org.apache.solr.update.CommitTracker.run(CommitTracker.java:261)

at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown
Source)

at java.base/java.util.concurrent.FutureTask.run(Unknown Source)

at
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
Source)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown
Source)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
Source)

at java.base/java.lang.Thread.run(Unknown Source)