[skipci] doc: add space manage of curvefs with volume backend #2294
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
ilixiaocui
force-pushed
the
master
branch
4 times, most recently
from
57a781a
to
c9f883e
Compare
cw123
reviewed
Mar 12, 2023
| - 不需要全部遍历所有的 InodeId, 清理效率会大大提高 | ||
|
|
||
| 缺点： | ||
| - 三副本上需要同步这一信息，因此 InodeId 的持久化需要通过一致性协议，在删除的文件数量很大的情况下，会有比较大的时间开销 |
There was a problem hiding this comment.
这个持久化，可以在update inode的时候做，不需要额外的走一次一致性协议，时间开销上会增加一次持久化rocksdb的操作，额外增加的时间开销应该还好。
There was a problem hiding this comment.
这里不是指删除的时候，是指在数据清理模块，把VolumeExtent对应的BlockGroup的bitmap清理掉后，inode需要更新。这个跟新是需要走一致性协议的。
| 1. ```Client``` 收到用户删除文件的请求 （空间回收的触发条件1）并处理 | ||
|
|
||
| - 如果配置了回收站，则把文件放到回收站中（相当于rename的操作) | ||
| - 如果没有配置回收站，则直接调用删除Inode的请求 |
ilixiaocui
force-pushed
the
master
branch
2 times, most recently
from
d8bd931
to
0fbb8da
Compare
Signed-off-by: ilixiaocui <ilixiaocui@163.com>
… has caused compatibility issues Signed-off-by: ilixiaocui <ilixiaocui@163.com>
2 tasks
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
What problem does this PR solve?
Issue Number: #2160
Problem Summary:
What is changed and how it works?
What's Changed:
How it Works:
Side effects(Breaking backward compatibility? Performance regression?):
Check List