GWphua commented on PR #19016:
URL: https://github.com/apache/druid/pull/19016#issuecomment-3956270711
Thanks for taking a look @cecemei
This method depends on the SEGMENT lock introduced in #7547 (See #7491 also
for more info). The use of segment lock assumes that the number of segments in
the same datasource and same interval will not exceed `Short.MAX_VALUE` (which
im not a fan of).
Let's say there are 100 segments in the same interval. we specify segments
0~4 in the SpecificSegmentsSpec to be compacted:
A new segment `segmentId_32768` will be created from segments 0~4, having
shardSpec:
```
{
"type": "numbered_overwrite",
"partitionId": 32768,
"startRootPartitionId": 0,
"endRootPartitionId": 5,
"minorVersion": 1,
"atomicUpdateGroupSize": 1
}
```
The rest of the segments (5~100) will still stay queryable + available. The
segments 0~4 will then be scheduled to be killed.
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