Very long delay on "Writing Memtable-local@xyz.."

[Bastian Schnorbus <ba...@gmail.com>]

Hi all,
anyone knows what exactly happens when I see
*Writing Memtable-local@57746066(0.472KiB serialized bytes, 15 ops, 0%/0%
of on/off-heap limit)*
during startup of C* processes in the cassandra-log?
When updating our 10-node cluster I see this for +10mins as last log entry.
There's some diskio during that time, but not too much...

Can I somewhere see some progress or maybe speed up things?

Thanks,
Bastian