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https://issues.apache.org/jira/browse/IGNITE-23286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirill Tkalenko reassigned IGNITE-23286:
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Assignee: Kirill Tkalenko
> Add CompactedException throwing for MetaStorageManager#getLocally
> -----------------------------------------------------------------
>
> Key: IGNITE-23286
> URL: https://issues.apache.org/jira/browse/IGNITE-23286
> Project: Ignite
> Issue Type: Improvement
> Reporter: Kirill Tkalenko
> Assignee: Kirill Tkalenko
> Priority: Major
> Labels: ignite-3
>
> Add CompactedException throwing for MetaStorageManager#getLocally
> We need to add throwing
> *org.apache.ignite.internal.metastorage.exceptions.CompactedException* for
> *org.apache.ignite.internal.metastorage.MetaStorageManager#getLocally(byte[],
> long, long)*.
> Such method will throw a *CompactedException*:
> # The key exists and either both requested boundary revisions or only the
> lower one have already been compacted
> # The key does not exist and any of the requested boundary revisions have
> already been compacted.
> Let's look at examples.
> Let's say there is a key "foo" in the metastorage with a single revision 3.
> The metastorage has finished compacting to revision 5.
> The key "bar" has never been in the metastorage.
> Let's look at some examples:
> # MetaStorageManager#getLocally(“foo”, 1, 1) - a CompactedException will be
> thrown.
> # MetaStorageManager#getLocally(“foo”, 1, 2) - a CompactedException will be
> thrown.
> # MetaStorageManager#getLocally(“foo”, 2, 3) - a CompactedException will be
> thrown.
> # MetaStorageManager#getLocally(“foo”, 3, 6) - will return a single value
> with revision 3.
> # MetaStorageManager#getLocally(“foo”, 5, 6) - will return a single value
> with revision 3.
> # MetaStorageManager#getLocally(“bar”, 1, 2) - a CompactedException will be
> thrown.
> # MetaStorageManager#getLocally(“bar”, 3, 5) - a CompactedException will be
> thrown.
> # MetaStorageManager#getLocally(“bar”, 6, 7) - will return an empty list.
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