For the records:
There was a demo at yesterday's community meeting about using trash.
If I understood well, it's a third approach, similar to the HDFS
The design doc is uploaded yesterday to
https://issues.apache.org/jira/browse/HDDS-3367
(But I also found a design doc in the comments:
https://docs.google.com/document/d/1fpmmnuhcCI-ATZfhhQmADq1J49Kawi9_UffcLVeuabQ)
I am not sure about the current state. Is there any consensus on the new
approach? Or still under discussion?
Marton
On 11/9/20 7:45 PM, Matthew Sharp wrote:
Hi,
I wanted to start a new thread to get consensus on the latest approach for
the Ozone trash feature since it has been a while.
This is my understanding of the current plan from today's community call:
Phase 1: HDDS-2416
- This will reuse the existing deletedTable for simplicity to help prove
out the feature.
- Since we are reusing the existing table, we will need to leverage the
key modification time and bucket recovery window to help determine what
keys are eligible to be listed or recovered.
Phase 2: HDDS-3367 (I believe this is the primary Jira, but keep me honest
here)
- This will introduce a new table, trashTable, where we will initially
move all trash eligible keys to when deleted.
- A separate trash removal thread will help purge the trashTable.
- Listing or recovering keys will be updated to only look at the
trashTable.
If anyone has any additional feedback on this please join in, otherwise
this will be the plan to continue current development work.
Thanks!
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