2cb9bb8f3a
This test starts a 3-node cluster and creates a large blob file so that one node reaches critical disk utilization, triggering write rejections on that node. The test then writes data with CL=QUORUM and validates that the data: - did not reach the critically utilized node - did reach the remaining two nodes By default, tables use speculative retries to determine when coordinators may query additional replicas. Since the validation uses CL=ONE, it is possible that an additional request is sent to satisfy the consistency level. As a result: - the first check may fail if the additional request is sent to a node that already contains data, making it appear as if data reached the critically utilized node - the second check may fail if the additional request is sent to the critically utilized node, making it appear as if data did not reach the healthy node The patch fixes the flakiness by disabling the speculative retries. Fixes https://github.com/scylladb/scylladb/issues/27212 Closes scylladb/scylladb#27488
Extension of the cluster tests, where all tests require externally mounted volumes to be used by scylla cluster nodes. The volumes are passed with --workdir.
The volumes can be of any size. A help generator space_limited_servers is provided
to easily create a cluster of any given number of nodes, where each node operates in
a separate volume.