[
https://issues.apache.org/jira/browse/HDDS-7845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hemant Kumar updated HDDS-7845:
-------------------------------
Description: There is an issue while running a UT that included a snapdiff
call, The problem was that it included 2 consecutive createSnapshot calls , The
first one created a checkpoint however the second didn’t and gave an error
during snapshot read (as checkpoint hadn't been created). although it didn’t
give an error during snapshot create and returned a response, It looks like the
checkpoint creation is happening async and not blocking call. One more
observation is that this occurs only when ratisEnabled set to true . (was:
Currently, `RocksDBCheckpointDiffer` does lots of things (e.g. maintaining the
DAG, implements RocksDB listener, diff two snapshots and probably remove/update
of snapshot from DAG too) which makes it complicated and harder to test because
of tight coupling with RocksDB.
`RocksDbCheckpointDiffer` can be simplified by extracting out the DAG to new
class `RocksDbCompactionDag` which maintains SST DAG in which you can add nodes
& arcs, load the DAG from disk/DB, remove nodes and arcs, etc. DAG is
independent of what we use to store compaction log (disk or RocksDB). We should
be able to test all the functionality of `RocksDbCompactionDag` independently.)
> Wait for checkpoint directory to be created
> -------------------------------------------
>
> Key: HDDS-7845
> URL: https://issues.apache.org/jira/browse/HDDS-7845
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Hemant Kumar
> Assignee: Hemant Kumar
> Priority: Major
>
> There is an issue while running a UT that included a snapdiff call, The
> problem was that it included 2 consecutive createSnapshot calls , The first
> one created a checkpoint however the second didn’t and gave an error during
> snapshot read (as checkpoint hadn't been created). although it didn’t give an
> error during snapshot create and returned a response, It looks like the
> checkpoint creation is happening async and not blocking call. One more
> observation is that this occurs only when ratisEnabled set to true .
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
