Thanks, Dima. The size of my json was only 8MB due to the small size of documents. I found the root cause of my problem. It may be useful others so I describe it short: 1. I used schema.xml 2. I had typo in the field names of my python source code 3. update.autoCreateFields was set to true as default which tried to create new fields in an immutable schema.xml see SO: https://stackoverflow.com/questions/31719955/solr-error-this-indexschema-is-not-mutable
So, I fixed the typo and also changed the update.autoCreateFields to false. Unfortunately, the log never shows which field it tried to make in the autoCreation phase so it takes time to find your typos Roland Dmitri Maziuk <dmitri.maz...@gmail.com> ezt írta (időpont: 2024. márc. 12., K, 19:53): > On 3/12/24 05:44, Szűcs Roland wrote: > > > I tried cbor-based and json-based approaches but none of them > > worked. The number of documents I tried to index in one request was 15000 > > but the document size is small: 0.5kb. > > Make batch size a parameter and run timings with different sizes. In my > setup I found that 5000 docs is the sweet spot for single node and 3000: > for a 2-node mirrored (num shards = 1, num replicas = 2) "cloud". > > I strongly suspect at 15000 you're DoS'ing your server(s). > > Dima > >
