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Posted to issues@ignite.apache.org by "Sergey Chugunov (Jira)" <ji...@apache.org> on 2020/02/27 12:15:00 UTC

[jira] [Created] (IGNITE-12721) Validation of key length written to Distributed Metastorage

Sergey Chugunov created IGNITE-12721:
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             Summary: Validation of key length written to Distributed Metastorage
                 Key: IGNITE-12721
                 URL: https://issues.apache.org/jira/browse/IGNITE-12721
             Project: Ignite
          Issue Type: Task
            Reporter: Sergey Chugunov
            Assignee: Sergey Chugunov
             Fix For: 2.9


DistributedMetastorage functionality introduced in IGNITE-10640 provides convenient way to perform coordinated writes to local MetaStorages on all server nodes but lacks important part: validation of key length.

Current implementation of MetaStorage doesn't allow keys longer than a specific value (64 bytes minus some prefixes, see source code for details) and throws assertion error on an attempt to write longer key.

This error from MetaStorage is not propagated to DistributedMetastorage and (in theory) may even cause a node to halt.

In order to avoid this situation validation of key length should be added right to DistributedMetastorage implementation to enforce "fail-fast" principle and preserve Ignite nodes from potentially dangerous consequences.



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