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Do not allow creating replicated table with inconsistent merge params #56833

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merged 8 commits into from Dec 14, 2023

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canhld94
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Changelog category (leave one):

  • Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

  • Do not allow creating replicated table with inconsistent merge params

See #56724 (comment)

Information about CI checks: https://clickhouse.com/docs/en/development/continuous-integration/

Signed-off-by: Duc Canh Le <duccanh.le@ahrefs.com>
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Not implement for graphite merge tree yet. My idea for graphite merge tree is to save as 128 sip hash value of graphite config in zookeeper. Any better idea is appreciated.

Signed-off-by: Duc Canh Le <duccanh.le@ahrefs.com>
@robot-ch-test-poll robot-ch-test-poll added the pr-improvement Pull request with some product improvements label Nov 16, 2023
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robot-ch-test-poll commented Nov 16, 2023

This is an automated comment for commit 9ff7e12 with description of existing statuses. It's updated for the latest CI running

❌ Click here to open a full report in a separate page

Successful checks
Check nameDescriptionStatus
CI runningA meta-check that indicates the running CI. Normally, it's in success or pending state. The failed status indicates some problems with the PR✅ success
ClickBenchRuns [ClickBench](https://github.com/ClickHouse/ClickBench/) with instant-attach table✅ success
ClickHouse build checkBuilds ClickHouse in various configurations for use in further steps. You have to fix the builds that fail. Build logs often has enough information to fix the error, but you might have to reproduce the failure locally. The cmake options can be found in the build log, grepping for cmake. Use these options and follow the general build process✅ success
Compatibility checkChecks that clickhouse binary runs on distributions with old libc versions. If it fails, ask a maintainer for help✅ success
Docker image for serversThe check to build and optionally push the mentioned image to docker hub✅ success
Fast testNormally this is the first check that is ran for a PR. It builds ClickHouse and runs most of stateless functional tests, omitting some. If it fails, further checks are not started until it is fixed. Look at the report to see which tests fail, then reproduce the failure locally as described here✅ success
Flaky testsChecks if new added or modified tests are flaky by running them repeatedly, in parallel, with more randomization. Functional tests are run 100 times with address sanitizer, and additional randomization of thread scheduling. Integrational tests are run up to 10 times. If at least once a new test has failed, or was too long, this check will be red. We don't allow flaky tests, read the doc✅ success
Install packagesChecks that the built packages are installable in a clear environment✅ success
Mergeable CheckChecks if all other necessary checks are successful✅ success
Performance ComparisonMeasure changes in query performance. The performance test report is described in detail here. In square brackets are the optional part/total tests✅ success
Push to DockerhubThe check for building and pushing the CI related docker images to docker hub✅ success
SQLTestThere's no description for the check yet, please add it to tests/ci/ci_config.py:CHECK_DESCRIPTIONS✅ success
SQLancerFuzzing tests that detect logical bugs with SQLancer tool✅ success
SqllogicRun clickhouse on the sqllogic test set against sqlite and checks that all statements are passed✅ success
Stateful testsRuns stateful functional tests for ClickHouse binaries built in various configurations -- release, debug, with sanitizers, etc✅ success
Stateless testsRuns stateless functional tests for ClickHouse binaries built in various configurations -- release, debug, with sanitizers, etc✅ success
Style CheckRuns a set of checks to keep the code style clean. If some of tests failed, see the related log from the report✅ success
Unit testsRuns the unit tests for different release types✅ success
Upgrade checkRuns stress tests on server version from last release and then tries to upgrade it to the version from the PR. It checks if the new server can successfully startup without any errors, crashes or sanitizer asserts✅ success
Check nameDescriptionStatus
AST fuzzerRuns randomly generated queries to catch program errors. The build type is optionally given in parenthesis. If it fails, ask a maintainer for help❌ failure
Integration testsThe integration tests report. In parenthesis the package type is given, and in square brackets are the optional part/total tests❌ failure
Stress testRuns stateless functional tests concurrently from several clients to detect concurrency-related errors❌ failure

@tavplubix tavplubix added the can be tested Allows running workflows for external contributors label Nov 21, 2023
Signed-off-by: Duc Canh Le <duccanh.le@ahrefs.com>
Signed-off-by: Duc Canh Le <duccanh.le@ahrefs.com>
Signed-off-by: Duc Canh Le <duccanh.le@ahrefs.com>
Signed-off-by: Duc Canh Le <duccanh.le@ahrefs.com>
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Kindly remind @tavplubix [THANKS]

@tavplubix tavplubix self-assigned this Nov 27, 2023
Comment on lines 44 to 49
auto * current_pos = buf.position();
for (; *s; ++s)
{
if (buf.eof() || *buf.position() != *s)
{
buf.position() = current_pos;
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It's unsafe to use a previously saved position after checking for eof, because eof() might call nextImpl() which might refill the buffer with a new bunch of data or even reallocate the buffer. See PeekableReadBuffer

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@canhld94 canhld94 Nov 29, 2023

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because eof() might call nextImpl() which might refill the buffer with a new bunch of data or even reallocate the buffer

Yes, I'm aware of this so I only implement peekString for ReadBufferFromString. But now look at ReadBufferFromString code seem it doesn't work as I thought, still have internal buffer. Then this implementation is incorrect.

canhld94 and others added 2 commits December 14, 2023 15:47
Co-authored-by: Alexander Tokmakov <tavplubix@gmail.com>
- peekString doesn't always work even for ReadBufferFromString
- more comment re. backward compatibility

Signed-off-by: Duc Canh Le <duccanh.le@ahrefs.com>
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AST fuzzer (debug) - #57077
Integration tests (asan) [3/4] - #57854
Integration tests (tsan) [6/6] - #57863
Stress test (tsan) - looks like CI infrastructure issue

@tavplubix tavplubix merged commit 93dd6b8 into ClickHouse:master Dec 14, 2023
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3 participants