Hi Carlos,

I read the preceding discussion with Stephen Mallette, which says: From the logs, while loading this graph, Cassandra driver is almost always warning that all batches are over the limit of 5120 (which I haven't found yet where to modify ...).
A complete stacktrace would help indeed, but it strikes me that 5120 equals 20 x 256 while the cassandra cql drivers have the following defaults:

storage.cql.batch-statement-size

The number of statements in each batch

Integer

20

storage.cql.remote-max-requests-per-connection

The maximum number of requests per connection for remote datacenter

Integer

256

Best wishes,    Marc