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f27083a4a8
Redis lists are stored in quicklist, which is currently a linked list of ziplists.
Ziplists are limited to storing elements no larger than 4GB, so when bigger
items are added they're getting truncated.
This PR changes quicklists so that they're capable of storing large items
in quicklist nodes that are plain string buffers rather than ziplist.
As part of the PR there were few other changes in redis:
1. new DEBUG sub-commands:
- QUICKLIST-PACKED-THRESHOLD - set the threshold of for the node type to
be plan or ziplist. default (1GB)
- QUICKLIST <key> - Shows low level info about the quicklist encoding of <key>
2. rdb format change:
- A new type was added - RDB_TYPE_LIST_QUICKLIST_2 .
- container type (packed / plain) was added to the beginning of the rdb object
(before the actual node list).
3. testing:
- Tests that requires over 100MB will be by default skipped. a new flag was
added to 'runtest' to run the large memory tests (not used by default)
Co-authored-by: sundb <sundbcn@gmail.com>
Co-authored-by: Oran Agra <oran@redislabs.com>
64 lines
2.8 KiB
Markdown
64 lines
2.8 KiB
Markdown
Redis Test Suite
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The normal execution mode of the test suite involves starting and manipulating
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local `redis-server` instances, inspecting process state, log files, etc.
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The test suite also supports execution against an external server, which is
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enabled using the `--host` and `--port` parameters. When executing against an
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external server, tests tagged `external:skip` are skipped.
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There are additional runtime options that can further adjust the test suite to
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match different external server configurations:
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| Option | Impact |
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| -------------------- | -------------------------------------------------------- |
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| `--singledb` | Only use database 0, don't assume others are supported. |
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| `--ignore-encoding` | Skip all checks for specific encoding. |
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| `--ignore-digest` | Skip key value digest validations. |
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| `--cluster-mode` | Run in strict Redis Cluster compatibility mode. |
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| `--large-memory` | Enables tests that consume more than 100mb |
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Tags
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----
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Tags are applied to tests to classify them according to the subsystem they test,
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but also to indicate compatibility with different run modes and required
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capabilities.
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Tags can be applied in different context levels:
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* `start_server` context
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* `tags` context that bundles several tests together
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* A single test context.
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The following compatibility and capability tags are currently used:
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| Tag | Indicates |
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| --------------------- | --------- |
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| `external:skip` | Not compatible with external servers. |
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| `cluster:skip` | Not compatible with `--cluster-mode`. |
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| `large-memory` | Test that requires more than 100mb |
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| `tls:skip` | Not campatible with `--tls`. |
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| `needs:repl` | Uses replication and needs to be able to `SYNC` from server. |
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| `needs:debug` | Uses the `DEBUG` command or other debugging focused commands (like `OBJECT`). |
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| `needs:pfdebug` | Uses the `PFDEBUG` command. |
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| `needs:config-maxmemory` | Uses `CONFIG SET` to manipulate memory limit, eviction policies, etc. |
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| `needs:config-resetstat` | Uses `CONFIG RESETSTAT` to reset statistics. |
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| `needs:reset` | Uses `RESET` to reset client connections. |
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| `needs:save` | Uses `SAVE` to create an RDB file. |
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When using an external server (`--host` and `--port`), filtering using the
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`external:skip` tags is done automatically.
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When using `--cluster-mode`, filtering using the `cluster:skip` tag is done
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automatically.
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When not using `--large-memory`, filtering using the `largemem:skip` tag is done
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automatically.
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In addition, it is possible to specify additional configuration. For example, to
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run tests on a server that does not permit `SYNC` use:
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./runtest --host <host> --port <port> --tags -needs:repl
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