infoverload commented on a change in pull request #18765:
URL: https://github.com/apache/flink/pull/18765#discussion_r812593954
##########
File path: docs/content/docs/ops/state/checkpoints.md
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@@ -175,6 +175,35 @@ above).
$ bin/flink run -s :checkpointMetaDataPath [:runArgs]
```
+### Checkpoint/Savepoint guarantees
+Not always the snapshot can be successfully restored.
+The following list contains operations which can be done without recovery lose
depends on the type of the snapshot.
+
+| Operation | Canonical Savepoint
| Native Savepoint | Aligned Checkpoint | Unaligned Checkpoint
|
+|:------------------------------------------------------|:--------------------|:-------------------------|:-------------------------|:-------------------------|
+| Statebackend change | Supported
| NOT Supported | NOT Supported | NOT Supported
|
+| Self-contained and relocatable | Supported
| Supported | NOT Supported | NOT Supported
|
+| State Processor API(reading) | Supported
| Experimentally Supported | Experimentally Supported | NOT Supported
|
+| State Processor API(writing) | Supported
| NOT Supported | NOT Supported | NOT Supported
|
+| Schema evolution | Supported
| Experimentally Supported | Experimentally Supported | Experimentally
Supported |
+| Flink minor (1.x → 1.y) version upgrade | Supported
| Supported | Supported | NOT Supported
|
+| Flink bug/patch (1.14.x → 1.14.y) version upgrade | Supported
| Supported | Supported | Supported
|
+| Arbitrary job upgrade | Supported
| Supported | Supported | NOT Supported
|
+| Job upgrade w/o changing graph shape and record types | Supported
| Supported | Supported | NOT Supported
|
+| Rescaling | Supported
| Supported | Supported | Supported
|
Review comment:
I think we should definitely avoid color for this table (more
user-friendly and more accessible to people who might be color-blind, etc) but
we could consider using an abbreviation or a symbol to represent "Supported",
"NOT Supported", and "Experimentally Supported" to make the entire table less
wordy and cramped.
For example, we could use "✓", "x", "!" and then have a legend for that
beforehand.
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