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Posted to issues-all@impala.apache.org by "Quanlong Huang (Jira)" <ji...@apache.org> on 2023/10/08 07:54:00 UTC

[jira] [Created] (IMPALA-12486) Add catalog metrics for ParallelFileMetadataLoader

Quanlong Huang created IMPALA-12486:
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             Summary: Add catalog metrics for ParallelFileMetadataLoader
                 Key: IMPALA-12486
                 URL: https://issues.apache.org/jira/browse/IMPALA-12486
             Project: IMPALA
          Issue Type: New Feature
          Components: Catalog
            Reporter: Quanlong Huang
            Assignee: Quanlong Huang


The following metrics will be helpful to understand the load on HDFS triggered by catalogd for loading file metadata:
 * *num-file-metadata-loading-threads:* The total size of all thread pools used in all ParallelFileMetadataLoader instances.
 * *num-file-metadata-loading-tasks:* The total number of *unfinished* FileMetadataLoader tasks that submit to the pools.
 * *num-tables-loading-file-metadata:* The total number of tables that are loading file metadata.



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