<p dir="auto">Druid indexing needs to be revisited to improve indexing performance and functional capability. Currently, v8 segments are created by IndexMerger and converted to v9. We should be able to build v9 segments directly.</p>
<p dir="auto">The indexing code is getting old and the method of updating the storage format is essentially amounting to writing in an old version and converting up multiple times.  This is less than optimal and not a good sign for future maintenance.</p>
<p dir="auto">We need to look at the indexing code and fixor it up to make it betterz.</p>