Hi, I am in a process of migrating from Solr-6.5.1 To Solr-8.6.3. The current index size after optimisation is 2.4 TB. We use a 7TB disk for indexing as the optimization needs extra space. Now with the newer Solr the un-optimised index itself got created of size 5+TB which after optimisation reduced to 2.4TB. Analysing the index I found .cfs files of almost 1.9 TB getting created.
<useCompoundFile> is by default false and I have not enabled it but still the .cfs files are getting created. During installation of Solr-8.6.3 I was getting ULIMIT related errors during solr startup which I fixed by increasing it. The Solr is run as a different user and not as a solr user. Kindly provide your suggestions on how I can achieve the same size of un-optimised index as that of Solr-6.5.1 to save on hard disk cost. Best, Modassar
