Most of Scylla code runs with a user-supplied query timeout, expressed as
absolute clock (deadline). When injecting test sleeps into such code, we most
often want to not sleep beyond the user supplied deadline. Extend error
injection API to optionally accept a deadline, and, if it is provided,
sleep no more than up to the deadline. If current time is beyond deadline,
sleep injection is skipped altogether.
Signed-off-by: Alejo Sanchez <alejo.sanchez@scylladb.com>
Message-Id: <20200326091600.1037717-2-alejo.sanchez@scylladb.com>
Error injection class is implemented in order to allow injecting
various errors (exceptions, stalls, etc.) in code for testing
purposes.
Error injection is enabled via compile flag
SCYLLA_ENABLE_ERROR_INJECTION
TODO: manage shard instances
Enable error injection in debug/dev/sanitize modes.
Unit tests for error injection class.
Closes#3295
Signed-off-by: Pavel Solodovnikov <pa.solodovnikov@scylladb.com>
Signed-off-by: Alejo Sanchez <alejo.sanchez@scylladb.com>
