cassandra 中的墓地压实是什么？
What is the graveyard compaction in cassandra?
这里是 Cassandra 菜鸟。在浏览文档等时，我不断地找到对墓地压实（偶尔还有墓碑）的引用，例如：
$ cassandra-cli
[default@unknown] help truncate;
...
A snapshot of the data is created, which is deleted asyncronously during a
'graveyard' compaction.
我试过用谷歌搜索，但那只会出现更多提到墓地压实的地方，例如 this, this and this。
墓地压实到底是什么？当人们提到墓碑时，他们指的是什么？
Graveyard 压缩是一种删除不再需要的 SSTable 的压缩。
例如在掉落期间，在创建快照后，相应table 的 sstable 会被墓地压缩删除。
A snapshot of the data is created, which is deleted asyncronously during a
'graveyard' compaction.
您在此处发现的只是文档中的一个错误。它应该说：
A snapshot of the data is created,
then the data is deleted asyncronously during a 'graveyard' compaction.
这里是 Cassandra 菜鸟。在浏览文档等时，我不断地找到对墓地压实（偶尔还有墓碑）的引用，例如：
$ cassandra-cli
[default@unknown] help truncate;
...
A snapshot of the data is created, which is deleted asyncronously during a
'graveyard' compaction.
我试过用谷歌搜索，但那只会出现更多提到墓地压实的地方，例如 this, this and this。
墓地压实到底是什么？当人们提到墓碑时，他们指的是什么？
Graveyard 压缩是一种删除不再需要的 SSTable 的压缩。
例如在掉落期间，在创建快照后，相应table 的 sstable 会被墓地压缩删除。
A snapshot of the data is created, which is deleted asyncronously during a
'graveyard' compaction.
您在此处发现的只是文档中的一个错误。它应该说：
A snapshot of the data is created,
then the data is deleted asyncronously during a 'graveyard' compaction.