Files
nats-server/server
Ivan Kozlovic 6460519cf5 [FIXED] MQTT: Possible panic when clients misbehave
If a client with a given client ID is connected and while connected
another client tries to reuse the same client ID, the spec says that
the old client be closed and the new one accepted.
However, the server protects from this flapping happening all the time
by rejecting new clients that try to connect at a very fast pace.

However, the server was closing a misbehaving client after a second
delay (to prevent immediate reconnect if the client library does that)
but was not blocking the read loop and the compounding issue was that
if that misbehaving client is REALLY misbehaving and not waiting for
the CONNACK to send more protocols (for instance SUB) the server would
panic because the client was not fully configured.

To prevent that, the server will now "block" this misbehaving client
in its readLoop before closing the connection, preventing processing
of possible protocols that follow the CONNECT.

Resolves #3313

Signed-off-by: Ivan Kozlovic <ivan@synadia.com>
2022-07-31 12:20:38 -06:00
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Tests

Tests that run on Travis have been split into jobs that run in their own VM in parallel. This reduces the overall running time but also is allowing recycling of a job when we get a flapper as opposed to have to recycle the whole test suite.

JetStream Tests

For JetStream tests, we need to observe a naming convention so that no tests are omitted when running on Travis.

The script runTestsOnTravis.sh will run a given job based on the definition found in ".travis.yml".

As for the naming convention:

  • All JetStream tests name should start with TestJetStream
  • Cluster tests should go into jetstream_cluster_test.go and start with TestJetStreamCluster
  • Super-cluster tests should go into jetstream_super_cluster_test.go and start with TestJetStreamSuperCluster

Not following this convention means that some tests may not be executed on Travis.