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From "Thomas Mueller (Jira)" <j...@apache.org>
Subject [jira] [Created] (OAK-9052) Reindexing using --doc-traversal-mode may need a lot of memory
Date Tue, 05 May 2020 13:10:00 GMT
Thomas Mueller created OAK-9052:
-----------------------------------

             Summary: Reindexing using --doc-traversal-mode may need a lot of memory
                 Key: OAK-9052
                 URL: https://issues.apache.org/jira/browse/OAK-9052
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: indexing, mongomk
            Reporter: Thomas Mueller


Indexing using oak-run and --doc-traversal-mode uses the FlatFileStore. For aggregation, there
is a limit on memory usage, by default around 100 MB. Depending on the content structure,
this limit can be exceeded. 

It would be good to find a way to avoid a memory limit, for example using a temporary storage
(a file, or a persistent key/value store).




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