Currently, there are some useless includes in the codebase. We can use a tool named include-what-you-use to optimize these includes. By using a strict include-what-you-use policy, we can get lots of benefits from it.
Currently, there are 2 status code in BE, one is common/Status.h,
and the other is olap/olap_define.h called OLAPStatus.
OLAPStatus is just an enum type, it is very simple and could not save many informations,
I will unify these code to common/Status.
The version information of the tablet will be stored in the memory
in an adjacency graph data structure.
And as the new version is written and the old version is deleted,
the data structure will begin to have empty vertex with no edge associations(orphan vertex).
These orphan vertexs should be removed somehow.
1. If cumulative compaction compact only one rowset, the old rowset will not be put into `stale_rowset_meta_map`
2. Show rowset id in `/api/compaction/show`
Co-authored-by: xxiao2018 <benghua3_1@sina.com>
* [Load] Broker Load supports setting the load parallelism
Similar to the parallel_fragment_exec_instance_num parameter,
it allows the user to set the parallelism of the load execution plan
on a single node when the broker load is submitted.
eg:
```
...
properties (
"load_parallelism" = "4";
...
)
```
This parameter is currently only used to support the load parallelism setting,
but it cannot significantly improve the load speed for the time being.
The speed increase will be completed in subsequent code submissions.
Documents will also be added in subsequent submissions.
This PR also update the FE meta version.
At present, the application of vlog in the code is quite confusing.
It is inherited from impala VLOG_XX format, and there is also VLOG(number) format.
VLOG(number) format does not have a unified specification, so this pr standardizes the use of VLOG
(1) fix recover persistent stale rowsets bug from multi-single version rowset in stale rowsets
(2) delete_expired_inc_rowsets check consistent version convert to [0, max_version]
Persistence stale rowsets meta. When BE reboots, stale rowsets meta
can resume and the stale version can also be readable before stale gc time.
ISSUE: #4453
Compaction rules optimization, the detail problem description and design to see #4164.
This pr commits 2 functions:
(1) add the cumulative policy configable, and implement original policy.
(2) implement universal policy, the optimization version in #4164.
(1) Add LargeInt cast to date and datatime, see #3864
LargeInt can cast to date and datatime. Fix this error:
Unable to find _ZN5doris13CastFunctions16cast_to_date_valEPN9doris_udf15FunctionContextERKNS1_11LargeIntValE
(2) Add local timezone info to stale_version_path_json_doc rest api
Add timezone to "last create time" field.
{
"path id": "1",
"last create time": "1970-01-01 10:46:40 +0800",
"path list": "1 -> [2-3] -> [4-5]"
},
and add timezone to the test unix, see #4121 .
Related issue #4017, main changes as follows:
1. Add expired_snapshot_rs_version_map，_expired_snapshot_rs_metas，
2. Add VersionedRowsetTracker record compacted path version
3. Record path version when rowsets compact
4. In gc process, add expired snapshot rowsets to unused set to remove.
