Fix three bugs:
1. Hudi slice maybe has log files only, so `new Path(filePath)` will throw errors.
2. Hive column names are lowercase only, so match column names in ignore-case-mode.
3. Compatible with [Spark Datasource Configs](https://hudi.apache.org/docs/configurations/#Read-Options), so users can add `hoodie.datasource.merge.type=skip_merge` in catalog properties to skip merge logs files.
Add 2 metrics in jdbc scan node profile:
- `CallJniNextTime`: call get next from jdbc result set
- `ConvertBatchTime`: call convert jobject to columm block
Also fix a potential concurrency issue when init jdbc connection cache pool
1. Reduce the number of threads reading avro logs and keep the readers in a fixed thread pool.
2. Regularly cleaning the cached resolvers in the thread local map by reflection.
Sometimes, the partitions of a hive table may on different storage, eg, some is on HDFS, others on object storage(cos, etc).
This PR mainly changes:
1. Fix the bug of accessing files via cosn.
2. Add a new field `fs_name` in TFileRangeDesc
This is because, when accessing a file, the BE will get a hdfs client from hdfs client cache, and different file in one query
request may have different fs name, eg, some of are `hdfs://`, some of are `cosn://`, so we need to specify fs name
for each file, otherwise, it may return error:
`reason: IllegalArgumentException: Wrong FS: cosn://doris-build-1308700295/xxxx, expected: hdfs://[172.xxxx:4007](http://172.xxxxx:4007/)`
The avro-scanner-jar package is reduced from 204M to 160M.
Hadoop-related dependencies in the original avro pom are directly packaged into a jar package, resulting in a jar volume of 200M. Now since there is already a hadoop jar package environment in be lib, it can be directly referenced.
This pr fixes two issues:
1. when using s3 TVF to query files in AVRO format, due to the change of `TFileType`, the originally queried `FILE_S3 ` becomes `FILE_LOCAL`, causing the query failed.
2. currently, both parameters `s3.virtual.key` and `s3.virtual.bucket` are removed. A new `S3Utils` in jni-avro to parse the bucket and key of s3.
The purpose of doing this operation is mainly to unify the parameters of s3.
Add scanner isolation class loader to make each plugin non-conflicting.
The BE will get scanner classes by JNI call and use JniClassLoader load them.
In the last version，we always get canner classes from the system class path by default,
so it cannot isolate the classes for each scanner
1. If only read the partition columns, the `JniConnector` will produce empty required fields, so `HudiJniScanner` should read the "_hoodie_record_key" field at least to know how many rows in current hoodie split. Even if the `JniConnector` doesn't read this field, the call of `releaseTable` in `JniConnector` will reclaim the resource.
2. To prevent BE failure and exit, `JniConnector` should call release methods after `HudiJniScanner` is initialized. It should be noted that `VectorTable` is created lazily in `JniScanner`, so we don't need to reclaim the resource when `HudiJniScanner` is failed to initialize.
## Remaining works
Other jni readers like `paimon` and `maxcompute` may encounter the same problems, the jni reader need to handle this abnormal situation on its own, and currently this fix can only ensure that BE will not exit.
Upgrade hudi version from 0.13.0 to 0.13.1, and keep the hudi version of jni scanner the same as that of FE.
This may fix the bug of the table schema is not same as parquet schema.
First of all, mysql does not have a boolean type, its boolean type is actually tinyint(1), in the previous logic, We force tinyint(1) to be a boolean by passing tinyInt1isBit=true, which causes an error if tinyint(1) is not a 0 or 1, Therefore, we need to match tinyint(1) according to tinyint instead of boolean, and this change will not affect the correctness of where k = 1 or where k = true queries
1.support filesystem metastore
2.support predicate and project when split
3.fix partition table query error
todo: Now you need to manually put paimon-s3-0.4.0-incubating.jar in be/lib/java_extensions when use s3 filesystem
doc pr: #21966
1. check minio region, set default region if user region is not provided, and throw minio error msg
2. support read root path s3://bucket1
3. fix max compute public access
Support hudi time travel in external table:
```
select * from hudi_table for time as of '20230712221248';
```
PR(https://github.com/apache/doris/pull/15418) supports to take timestamp or version as the snapshot ID in iceberg, but hudi only has timestamp as the snapshot ID. Therefore, when querying hudi table with `for version as of`, error will be thrown like:
```
ERROR 1105 (HY000): errCode = 2, detailMessage = Hudi table only supports timestamp as snapshot ID
```
The supported formats of timestamp in hudi are: 'yyyy-MM-dd HH:mm:ss[.SSS]' or 'yyyy-MM-dd' or 'yyyyMMddHHmmss[SSS]', which is consistent with the [time-travel-query.](https://hudi.apache.org/docs/quick-start-guide#time-travel-query)
## Partitioning Strategies
Before this PR, hudi's partitions need to be synchronized to hive through [hive-sync-tool](https://hudi.apache.org/docs/syncing_metastore/#hive-sync-tool), or by setting very complex synchronization parameters in [spark conf](https://hudi.apache.org/docs/syncing_metastore/#sync-template). These processes are exceptionally complex and unnecessary, unless you want to query hudi data through hive.
In addition, partitions are changed in time travel. We cannot guarantee the correctness of time travel through partition synchronization.
So this PR directly obtain partitions by reading hudi meta information. Caching and updating table partition information through hudi instant timestamp, and reusing Doris' partition pruning.
Use spark-bundle to read hudi data instead of using hive-bundle to read hudi data.
**Advantage** for using spark-bundle to read hudi data:
1. The performance of spark-bundle is more than twice that of hive-bundle
2. spark-bundle using `UnsafeRow` can reduce data copying and GC time of the jvm
3. spark-bundle support `Time Travel`, `Incremental Read`, and `Schema Change`, these functions can be quickly ported to Doris
**Disadvantage** for using spark-bundle to read hudi data:
1. More dependencies make hudi-dependency.jar very cumbersome(from 138M -> 300M)
2. spark-bundle only provides `RDD` interface and cannot be used directly
exclude old netty version
upgrade spring-boot version to 2.7.13
used ojdbc8 replace ojdbc6
upgrade jackson version to 2.15.2
upgrade fabric8 version to 6.7.2
1. Fix MC jni scanner OOM
2. add the second datetime type for MC SDK timestamp
3. make s3 uri case insensitive by the way
4. optimize max compute scanner parallel model
Add JNI metrics, for example:
```
- HudiJniScanner: 0ns
- FillBlockTime: 31.29ms
- GetRecordReaderTime: 1m5s
- JavaScanTime: 35s991ms
- OpenScannerTime: 1m6s
```
Add three common performance metrics for JNI scanner:
1. `OpenScannerTime`: Time to init and open JNI scanner
2. `JavaScanTime`: Time to scan data and insert into vector table in java side
3. `FillBlockTime`: Time to convert java vector table to c++ block
And support user defined metrics in java side, for example: `OpenScannerTime` is a long time for the open process, we want to determine which sub-process takes too much time, so we add `GetRecordReaderTime` in java side.
The user defined metrics in java side can be attached to BE profile automatically.
Two optimizations:
1. Insert string bytes directly to remove decoding&encoding process.
2. Use native reader to read the hudi base file if it has no log file. Use `explain` to show how many splits are read natively.
hudi serializer `org.apache.hudi.common.util.SerializationUtils$KryoInstantiator.newKryo` throws error like `java.lang.IllegalArgumentException: classLoader cannot be null`. Set the default class loader for scan thread.
```
public Kryo newKryo() {
Kryo kryo = new Kryo();
...
// Thread.currentThread().getContextClassLoader() returns null
kryo.setClassLoader(Thread.currentThread().getContextClassLoader());
...
return kryo;
}
```
The java-udf module has become increasingly large and difficult to manage, making it inconvenient to package and use as needed. It needs to be split into multiple sub-modules, such as : java-commom、java-udf、jdbc-scanner、hudi-scanner、 paimon-scanner.
Co-authored-by: lexluo <lexluo@tencent.com>
