Files
scylladb/test/cluster
Gleb Natapov c2cc7ebf39 test: fix test_cas_semaphore flakiness due to paxos state table creation timeout
The test was starting Scylla with --write-request-timeout-in-ms=500 on the
command line. This tight timeout also applied to paxos state table creation,
which goes through raft and can take longer than 500ms on slow platforms
(e.g. aarch64/dev). When the first batch of CAS requests triggered paxos
state table creation under error injection, the raft schema change could
still be in-flight when the second batch fired, causing spurious WriteTimeout
failures unrelated to the semaphore bug being tested.

Fix by changing the write timeout at runtime via the REST API: lower it to
500ms only for the error-injection CAS phase (after table creation is done),
then restore it to 10000ms before the second batch that must succeed.

Fixes https://scylladb.atlassian.net/browse/SCYLLADB-2104

Closes scylladb/scylladb#29969
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