文档数量:400_000

文档号集合:[0, 400_000)

LeafReaderContext:段1

1(partition-0)

文档数量:400_000

文档号集合:[400_000, 800_000)

LeafReaderContext:段1

1(partition-1)

文档数量:400_000

文档号集合:[800_000, 120_000)

LeafReaderContext:段1

1(partition-2)

文档数量:400_000

文档号集合:[120_000, 160_000)

LeafReaderContext:段1

1(partition-3)

文档数量:400_000

文档号集合:[160_000, 200_000)

LeafReaderContext:段1

1(partition-4)

LeafReaderContextPartition

LeafReaderContextPartition

LeafReaderContextPartition

LeafReaderContextPartition

LeafReaderContextPartition

Thread

Thread

Thread

Thread

Thread

0

Reduce

count = 0 + countSum + 0 + 0 + 0

获取段1中满足查询条件文档总数countSum

Weight#count

抢占临界区

抢占失败

抢占成功

抢占失败

抢占失败

抢占失败

0

0

0