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https://issues.apache.org/jira/browse/CASSANDRA-21224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marcus Eriksson updated CASSANDRA-21224:
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Change Category: Performance
Complexity: Low Hanging Fruit
Component/s: Transactional Cluster Metadata
Fix Version/s: 6.x
Reviewers: Sam Tunnicliffe
Status: Open (was: Triage Needed)
> Cost of deserializing cluster metadata may become prohibitive with a large
> number of peers
> ------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-21224
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21224
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Transactional Cluster Metadata
> Reporter: Marcus Eriksson
> Assignee: Marcus Eriksson
> Priority: Normal
> Fix For: 6.x
>
>
> When building the Directory component of ClusterMetadata, the entire set of
> nodes is traversed to calculate the min, max and common serialization
> versions. Deserializing a directory from a set of bytes (e.g. when reading a
> snapshot from the system table or off the wire) is inefficient and creates a
> new temporary Directory instance each time a node is added. In large clusters
> this may have a noticeable effect on loading time.
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