This PR introduce stats task for import:
1. Define new `Stats` and `IndexBuilding` states for importJob
2. Add new stats step to the import process: trigger the stats task and
wait for its completion
3. Abort stats task if import job failed
issue: https://github.com/milvus-io/milvus/issues/33744
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Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
issue: #33744
This PR includes the following changes:
1. Added a new task type to the task scheduler in datacoord: stats task,
which sorts segments by primary key.
2. Implemented segment sorting in indexnode.
3. Added a new field `FieldStatsLog` to SegmentInfo to store token index
information.
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Signed-off-by: Cai Zhang <cai.zhang@zilliz.com>
Related to #28861
Move session manager, worker manager to session package. Also renaming
each manager to corresponding node name(datanode, indexnode).
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Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
