-
Notifications
You must be signed in to change notification settings - Fork 8.7k
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
HDFS-17524. OIV: add Transformed processor which reconstructs an fsimage from another fsimage file #6820
Open
XbaoWu
wants to merge
1
commit into
apache:trunk
Choose a base branch
from
XbaoWu:trunk-HDFS-17524
base: trunk
Could not load branches
Branch not found: {{ refName }}
Could not load tags
Nothing to show
Are you sure you want to change the base?
Some commits from the old base branch may be removed from the timeline,
and old review comments may become outdated.
+1,017
−5
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
XbaoWu
changed the title
HDFS-17524. Support the switch StringTable Split ID feature
HDFS-17524. OIV: add Transformed processor which reconstructs an fsimage from another fsimage file
May 13, 2024
💔 -1 overall
This message was automatically generated. |
XbaoWu
force-pushed
the
trunk-HDFS-17524
branch
2 times, most recently
from
May 15, 2024 11:52
7695920
to
0ab78d7
Compare
💔 -1 overall
This message was automatically generated. |
🎊 +1 overall
This message was automatically generated. |
XbaoWu
force-pushed
the
trunk-HDFS-17524
branch
2 times, most recently
from
May 17, 2024 02:13
7b0fdf4
to
36cc9dc
Compare
…age from another fsimage file
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Outdated suggestions cannot be applied.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.
Description of PR
Hadoop 3.2 introduced optimization features for HDFS StringTable (b60ca37), It resulted in lower versions of Hadoop upgraded to 3.2 and later versions not supporting downgrade operations. Therefore, we have added Transformed Processor to support downgrading. In the upgrade with large version span, it avoids the low version can not read the fs-image generated by the 3.2 and later version, which support for the 3.2 and later version to be downgraded to the low version.
For more information about this PR, please refer to the following issue:
HDFS-17524 OIV: add Transformed processor which reconstructs an fsimage from another fsimage file.
How was this patch tested?
add TestOfflineImageViewer.testTransformedWriter()
add TestOfflineImageViewer.testTransformedWriterWrongLayoutVersion()
add TestOfflineImageViewer.testTransformedWriterReasonableLayoutVersion()
For code changes:
LICENSE
,LICENSE-binary
,NOTICE-binary
files?