The broker implements the interface to juicefs,It supports loading data from juicefs to doris through broker.
At the same time, it also implements the multi catalog to read the hive data stored in juicefs
# Proposed changes
This PR fixed lots of issues when building from source on macOS with Apple M1 chip.
## ATTENTION
The job for supporting macOS with Apple M1 chip is too big and there are lots of unresolved issues during runtime:
1. Some errors with memory tracker occur when BE (RELEASE) starts.
2. Some UT cases fail.
...
Temporarily, the following changes are made on macOS to start BE successfully.
1. Disable memory tracker.
2. Use tcmalloc instead of jemalloc.
This PR kicks off the job. Guys who are interested in this job can continue to fix these runtime issues.
## Use case
```shell
./build.sh -j 8 --be --clean
cd output/be/bin
ulimit -n 60000
./start_be.sh --daemon
```
## Something else
It takes around _**10+**_ minutes to build BE (with prebuilt third-parties) on macOS with M1 chip. We will improve the development experience on macOS greatly when we finish the adaptation job.
Every time a new broker load comes in, Doris will update the start time of Kerberos authentication,
but this logic is wrong.
Because the authentication duration of Kerberos is calculated from the moment when the ticket is obtained.
This PR change the logic:
1. If it is kerberos, check fs expiration by create time.
2.Otherwise, check fs expiration by access time
Currently, Doris supports loading OSS/S3A files by using params like fs.s3a.access.key, but there is a bug when using it to load such type files. The root cause is broker can not handle FSDataInputStream which does not implement ByteBufferReadable.
See Issue #6307
S3A input stream to support ByteBufferReadable
https://issues.apache.org/jira/browse/HADOOP-14603
1. Disable the MySQL client and LZO library by default when building the Doris.
MySQL client library is used for MySQL external table feature.
This feature will be replaced by the new ODBC external table soon.
LZO library is used to compress/decompress data of some old data format of Doris,
which is no longer used anymore.
2. Add missing license to some files.
3. For all non-Apache-License code, all are explained in NOTICE file and the corresponding license is declared.
4. Remove the js source code from webroot, it will be downloaded as thirdparty
This bug is introduced by PR #3784
In #3784, I remove the `Catalog.getInstance()`, and use `Catalog.getCurrentCatalog()` instead.
But actually, there are some place that should use the serving catalog explicitly.
Mainly changed:
1. Add a new method `getServingCatalog()` to explicitly return the real catalog instance.
2. Fix a compile bug of broker introduced by #3881
This commit fixs a bug that broker cannot read the full length of buffer size, when the buffer size is set larger than 128k.
This bug will cause the data size returned by pread request to be less than 128K all the time.
