b33dd2bd7d
Although valid for compact tables, non-full (or empty) clustering key prefixes are not handled for row keys when writing sstables. Only the present components are written, consequently if the key is empty, it is omitted entirely. When parsing sstables, the parsing code unconditionally parses a full prefix. This mis-match results in parsing failures, as the parser parses part of the row content as a key resulting in a garbage key and subsequent mis-parsing of the row content and maybe even subsequent partitions. Introduce a new system table: `system.corrupt_data` and infrastructure similar to `large_data_handler`: `corrupt_data_handler` which abstracts how corrupt data is handled. The sstable writer now passes rows such corrupt keys to the corrupt data handler. This way, we avoid corrupting the sstables beyond parsing and the rows are also kept around in system.corrupt_data for later inspection and possible recovery. Add a full-stack test which checks that rows with bad keys are correctly handled. Fixes: https://github.com/scylladb/scylladb/issues/24489 The bug is present in all versions, has to be backported to all supported versions. Closes scylladb/scylladb#24492 * github.com:scylladb/scylladb: test/boost/sstable_datafile_test: add test for corrupt data sstables/mx/writer: handler rows with empty keys test/lib/cql_assertions: introduce columns_assertions sstables: add corrupt_data_handler to sstables::sstables tools/scylla-sstable: make large_data_handler a local db: introduce corrupt_data_handler mutation: introduce frozen_mutation_fragment_v2 mutation/mutation_partition_view: read_{clustering,static}_row(): return row type mutation/mutation_partition_view: extract de-ser of {clustering,static} row idl-compiler.py: generate skip() definition for enums serializers idl: extract full_position.idl from position_in_partition.idl db/system_keyspace: add apply_mutation() db/system_keyspace: introduce the corrupt_data table
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++ cqlpy - 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.