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The test is booting nodes, and then immediately starts shutting down nodes and removing them from the cluster. The shutting down and removing may happen before driver manages to connect to all nodes in the cluster. In particular, the driver didn't yet connect to the last bootstrapped node. Or it can even happen that the driver has connected, but the control connection is established to the first node, and the driver fetched topology from the first node when the first node didn't yet consider the last node to be normal. So the driver decides to close connection to the last node like this: ``` 22:34:03.159 DEBUG> [control connection] Removing host not found in peers metadata: <Host: 127.42.90.14:9042 datacenter1> ``` Eventually, at the end of the test, only the last node remains, all other nodes have been removed or stopped. But the driver does not have a connection to that last node. Fix this problem by ensuring that: - all nodes see each other as NORMAL, - the driver has connected to all nodes at the beginning of the test, before we start shutting down and removing nodes. Fixes scylladb/scylladb#16373 Closes scylladb/scylladb#17676
Scylla in-source tests.
For details on how to run the tests, see docs/dev/testing.md
Shared C++ utils, libraries are in lib/, for Python - pylib/
alternator - Python tests which connect to a single server and use the DynamoDB API unit, boost, raft - unit tests in C++ cql-pytest - Python tests which connect to a single server and use CQL topology* - tests that set up clusters and add/remove nodes cql - approval tests that use CQL and pre-recorded output rest_api - tests for Scylla REST API Port 9000 scylla-gdb - tests for scylla-gdb.py helper script nodetool - tests for C++ implementation of nodetool
If you can use an existing folder, consider adding your test to it. New folders should be used for new large categories/subsystems, or when the test environment is significantly different from some existing suite, e.g. you plan to start scylladb with different configuration, and you intend to add many tests and would like them to reuse an existing Scylla cluster (clusters can be reused for tests within the same folder).
To add a new folder, create a new directory, and then
copy & edit its suite.ini.