Describe your changes.
1.Add the watch mechanism to listen for changes in k8s statefulSet and update nodes in time.
2.For broker, there is only one name by default when using deployManager
3.Refactoring code makes it easier to understand and maintain
4.Fix jar package conflicts between okhttp-ws and okhttp
Previously, the logic of k8sDeployManager.getGroupHostInfos was to call the endpoints () interface of k8s,
which would cause if the pod was unexpectedly restarted, k8sDeployManager would delete the pod before the
restart from the fe or be list and add the pod after the restart to the fe or be list, which obviously does not
meet our expectations.
Now, after fqdn is enabled, we call the statefulSets() interface of k8s to listen for the number of copies to
determine whether we need to be online or offline.
In addition, the watch mechanism is added to avoid the possible A-B-A problem caused by timed polling.
For the sake of stability, when the watch mechanism does not receive messages for a period of time,
it will be degraded to the polling mode.
Now several environment variables have been added，ENV_FE_STATEFULSET，ENV_FE_OBSERVER_STATEFULSET，ENV_BE_STATEFULSET，ENV_BROKER_STATEFULSET，ENV_CN_STATEFULSET For statefulsetName，One-to-one correspondence with ENV_FE_SERVICE，ENV_FE_OBSERVER_SERVICE，ENV_BE_SERVICE，ENV_BROKER_SERVICE，ENV_CN_SERVICE，If a serviceName is configured, the corresponding statefulsetName must be configured, otherwise the program cannot be started.
This problem is caused by the slots with same hashcodes was put in the hashset results into the wrong rules was selected.Use list instead of set as return type of getDistinctArguments method
remove the redandunt lock in the CacheLoader, since it use the forkjoinpool in default
Add execute time log for collect stats
Avoid submit duplicate task, when there already has a task to load for the same column
In #17797 , we introduced aspectj to help log exception easily.
However, the plugin version 1.11 do not support jdk9 and later.
For support compile FE with jdk11
update aspectj-maven-plugin to 1.14.0 version
add new dependency org.aspectj.aspectjrt 1.9.7 to fe-core
according to:
aspectj java version compatibility
aspectj-maven-plugin issue
aspectj release note
intro to aspectj
There are many type definitions in BE. Should unify the type system and simplify the development.
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Co-authored-by: yiguolei <yiguolei@gmail.com>
Support create/drop global function.
When you create a custom function, it can only be used within in one database. It cannot be used in other database/catalog. When there are many databases/catalog, it needs to create function one by one.
## Problem summary
Describe your changes.
1、 When a function is created or deleted, add the global keyword.
CREATE [GLOBAL] [AGGREGATE] [ALIAS] FUNCTION function_name (arg_type [, ...]) [RETURNS ret_type] [INTERMEDIATE inter_type] [WITH PARAMETER(param [,...]) AS origin_function] [PROPERTIES ("key" = "value" [, ...]) ]
DROP [GLOBAL] FUNCTION function_name (arg_type [, ...])
2、A completely global global function is set, and the global function metadata is stored in the image. The function lookup strategy is to look in the database first, and if it can't be found, it looks in the global function.
Co-authored-by: lexluo <lexluo@tencent.com>
* 1. update ndv in Stats,
2. skip __DORIS_DELETE_SIGN__=0 in stats derive,
3. equalTo in stats derive
4. update agg stats derive, support the case: all column_stats are unknown
* computeSize
* fix ut
Before this PR when encountering null values with some columns which is specified as `NOT NULL`, null values will not be filtered,thi behavior does not match with the original load behavior.
Second column alignment logic has bug :
```
template <typename ColumnInserterFn>
void align_variant_by_name_and_type(ColumnObject& dst, const ColumnObject& src, size_t row_cnt,
ColumnInserterFn inserter) {
CHECK(dst.is_finalized() && src.is_finalized());
// Use rows() here instead of size(), since size() will check_consistency
// but we could not check_consistency since num_rows will be upgraded even
// if src and dst is empty, we just increase the num_rows of dst and fill
// num_rows of default values when meet new data
size_t num_rows = dst.rows();
```
basic functions for map datatype:
- MAP<K, V> map(K k1, V v1, ...)
- BIGINT map_size(MAP<K, V> m)
- BOOL map_contains_key(MAP<K, V> m, K k1)
- BOOL map_contains_value(MAP<K, V> m, V v1)
- ARRAY< K> map_keys(MAP<K, V> m)
- ARRAY< V> map_values(MAP<K, V> m)
How it works?
Aspectj is used to implement the aspect function of annotations. During the compilation process, the aspectj-maven-plugin plugin will automatically weave the code with aspect annotations into the generated classes file.
When to use to?
When a method wants to add a try catch to save exception information, the LogException annotation can be used. When there is a method that does not allow errors, the NoException annotation can be used.
What is the result when adding this annotation?
Use the LogException annotation to automatically capture exceptions into the Log file, and the code can be more concise. Use the NoException annotation to automatically capture the exception to the Log file and exit the program when an exception occurs.
will get String index out of range exception when use error datetime values like '2020-02-01'
before:
MySQL [test]> select test121.k1 from test121 where k1 != ('9102-12-');
ERROR 1105 (HY000): errCode = 2, detailMessage = Unexpected exception: String index out of range: 8
after:
MySQL [test]> select test121.k1 from test121 where k1 = '9102-12-';
ERROR 1105 (HY000): errCode = 2, detailMessage = Incorrect datetime value: '9102-12-' in expression: k1 = '9102-12-'
Signed-off-by: nextdreamblue <zxw520blue1@163.com>
* [enhancement](fe query schedule) use try write lock to avoid too much wait time for planner; prin acii id instead of big int
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Co-authored-by: yiguolei <yiguolei@gmail.com>
