Roman Puchkovskiy created IGNITE-19770:
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Summary: Add a mechanism to wait till a schema is available via
Schema Sync at a ts
Key: IGNITE-19770
URL: https://issues.apache.org/jira/browse/IGNITE-19770
Project: Ignite
Issue Type: Improvement
Reporter: Roman Puchkovskiy
Fix For: 3.0.0-beta2
According to IEP-98, when obtaining a schema at a timestamp T, we need to wait
till Meta-Storage SafeTime becomes >= T-DD. A mechanism for such waits needs to
be implemented.
Also, we will probably need to wait for a specific version of a table/index/etc
(or a version of a Catalog as a whole), so a way to need for it (and not for a
ts) is also needed.
Both can be implemented either as methods like
{{CompletableFuture<TableDefinition> table(String tableName, HybridTimestamp
ts)}} (for each getting method) or a single method like
{{CompletableFuture<Void> waitForTs(HybridTimestamp)}} (then usual sync methods
to be used to get the definitions).
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