The situation is:
Three hosts, host1, host2, host3. Solr version 6.1 in cloud mode. 8 solr
nodes on each host.
Create a collection using implicit router. Execute index and delete index.
The collection works fine.
Then kill 3 nodes, some of shards change leader.
Then index data to new leaders of shards, and commit. But some of shards
still has 0 documents. And no error occurred.
By checking the log on that leader replica, it did receive the update
request and processed. No error found in the log.
After restart all nodes, everything works fine.
This is a serious bug I think.
Can you confirm it's a bug or not?