PR #48154 introduced a sanity check in the form of a debug assertion
that the input values for VarInt encoding are not too big. Such values
should be exceptionally rare in practice but the AST fuzzer managed to
trigger the assertion regardless. The strategy to deal with such values
until now was to bypass the check by limiting the value to the maximum
allowed value (see #48412). Because a new AST Fuzzer failure appeared
(#48497) and there may be more failures in future, this PR changes the
sanity check from an assert to an exception.
Fixes: #48497
Server settings:
- max_local_read_bandwidth_for_server
- max_local_write_bandwidth_for_server
Query settings:
- max_local_read_bandwidth
- max_local_write_bandwidth
This is the preparation for adding ability to throttle BACKUPs
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
Otherwise query like this, can trigger sanity check:
WITH x AS (SELECT [], number AS a FROM numbers(9223372036854775807)), y AS (SELECT arrayLastOrNull(x -> (x >= -inf), []), arrayLastOrNull(x -> (x >= NULL), [1]), number AS a FROM numbers(1.)) SELECT [1023], * FROM x WHERE a IN (SELECT a FROM y) ORDER BY arrayLastOrNull(x -> (x >= 1025), [1048577, 1048576]) DESC NULLS LAST, '0.0000000002' ASC NULLS LAST, a DESC NULLS FIRST
CI: https://s3.amazonaws.com/clickhouse-test-reports/0/a9bcd022d5f4a5be530595dbfae3ed177b5c1972/fuzzer_astfuzzermsan/report.html
Signed-off-by: Azat Khuzhin <a.khuzhin@semrush.com>
* save format string for NetException
* format exceptions
* format exceptions 2
* format exceptions 3
* format exceptions 4
* format exceptions 5
* format exceptions 6
* fix
* format exceptions 7
* format exceptions 8
* Update MergeTreeIndexGin.cpp
* Update AggregateFunctionMap.cpp
* Update AggregateFunctionMap.cpp
* fix
A simple HelloWorld program with zero includes except iostream triggers
a build of ca. 2000 source files. The reason is that ClickHouse's
top-level CMakeLists.txt overrides "add_executable()" to link all
binaries against "clickhouse_new_delete". This links against
"clickhouse_common_io", which in turn has lots of 3rd party library
dependencies ... Without linking "clickhouse_new_delete", the number of
compiled files for "HelloWorld" goes down to ca. 70.
As an example, the self-extracting-executable needs none of its current
dependencies but other programs may also benefit.
In order to restore access to the original "add_executable()", the
overriding version is now prefixed. There is precedence for a
"clickhouse_" prefix (as opposed to "ch_"), for example
"clickhouse_split_debug_symbols". In general prefixing makes sense also
because overriding CMake commands relies on undocumented behavior and is
considered not-so-great practice (*).
(*) https://crascit.com/2018/09/14/do-not-redefine-cmake-commands/
