HDDS-4453. Replicate closed container from random selected datanode #1574
Conversation
This file contains hidden or 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
sodonnel
approved these changes
Nov 12, 2020
Contributor
sodonnel
left a comment
sodonnel
left a comment
There was a problem hiding this comment.
Thanks for working on this. The changes LGTM. +1.
nandakumar131
approved these changes
Nov 13, 2020
errose28
added a commit
to errose28/ozone
that referenced
this pull request
Nov 18, 2020
* master: (53 commits) HDDS-4458. Fix Max Transaction ID value in OM. (apache#1585) HDDS-4442. Disable the location information of audit logger to reduce overhead (apache#1567) HDDS-4441. Add metrics for ACL related operations.(Addendum for HA). (apache#1584) HDDS-4081. Create ZH translation of StorageContainerManager.md in doc. (apache#1558) HDDS-4080. Create ZH translation of OzoneManager.md in doc. (apache#1541) HDDS-4079. Create ZH translation of Containers.md in doc. (apache#1539) HDDS-4184. Add Features menu for Chinese document. (apache#1547) HDDS-4235. Ozone client FS path validation is not present in OFS. (apache#1582) HDDS-4338. Fix the issue that SCM web UI banner shows "HDFS SCM". (apache#1583) HDDS-4337. Implement RocksDB options cache for new datanode DB utilities. (apache#1544) HDDS-4083. Create ZH translation of Recon.md in doc (apache#1575) HDDS-4453. Replicate closed container for random selected datanodes. (apache#1574) HDDS-4408: terminate Datanode when Datanode State Machine Thread got uncaught exception. (apache#1533) HDDS-4443. Recon: Using Mysql database throws exception and fails startup (apache#1570) HDDS-4315. Use Epoch to generate unique ObjectIDs (apache#1480) HDDS-4455. Fix typo in README.md doc (apache#1578) HDDS-4441. Add metrics for ACL related operations. (apache#1571) HDDS-4437. Avoid unnecessary builder conversion in setting volume Quota/Owner request (apache#1564) HDDS-4417. Simplify Ozone client code with configuration object (apache#1542) HDDS-4363. Add metric to track the number of RocksDB open/close operations. (apache#1530) ...
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
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 changes were proposed in this pull request?
Che-Wei Chang reported a very particular case related to the data replication:
When a container is downloaded successfully but the content is invalid, the error the retry mechanism doesn't work very well. Downloader reports the download successful therefore it won't be reported as failure, but import will fail again and again.
To make it more resilient we can select datanode randomly,
What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-4453
How was this patch tested?
Unit test is added.