sijie opened a new pull request #1315: (WIP) Issue 1314: Provide a mechanism to 
allow high priority writes to readonly bookies
   Descriptions of the changes in this PR:
   Currently we allow fence requests going through readonly bookies, since 
fence requests are special read requests. However a ledger can only be sealed 
after it is successfully recovered. If bookies are in readonly, those recovery 
writes won't go through.
   If there is a bookie outage happened (e.g. all bookies are readonly), all 
ledgers are not able to be sealed. It might be good to have a similar setting 
like minUsableSizeForIndexFileCreation for recovery writes.
   This can improve operability during outage.
   - add a setting `minUsableSizeForHighPriorityWrites` to allow accepting high 
priority writes on readonly bookies.
   Master Issue: #1314 
   > ---
   > Be sure to do all of the following to help us incorporate your contribution
   > quickly and easily:
   > If this PR is a BookKeeper Proposal (BP):
   > - [ ] Make sure the PR title is formatted like:
   >     `<BP-#>: Description of bookkeeper proposal`
   >     `e.g. BP-1: 64 bits ledger is support`
   > - [ ] Attach the master issue link in the description of this PR.
   > - [ ] Attach the google doc link if the BP is written in Google Doc.
   > Otherwise:
   > - [ ] Make sure the PR title is formatted like:
   >     `<Issue #>: Description of pull request`
   >     `e.g. Issue 123: Description ...`
   > - [ ] Make sure tests pass via `mvn clean apache-rat:check install 
   > - [ ] Replace `<Issue #>` in the title with the actual Issue number.
   > ---

This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:

With regards,
Apache Git Services

Reply via email to