[jira] [Commented] (OAK-5983) BlobGC should log the amount of space reclaimed after GC run is done

["Amit Jain (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OAK-5983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16201539#comment-16201539 ] 

Amit Jain commented on OAK-5983:
--------------------------------

Added estimate of the size calculated for cases having length encoded in the id with http://svn.apache.org/viewvc?rev=1811914&view=rev
This leaves out the estimate for Mongo/RDBBlobStore blobs and no length encoded blob ids (for example from upgraded systems). This should cover most use cases though.
I am hesitant to add code at this point to cover cases with no length encoding which would require a remote call because deletion phase is already the slowest part and would add significant time for large datastores.

> BlobGC should log the amount of space reclaimed after GC run is done
> --------------------------------------------------------------------
>
>                 Key: OAK-5983
>                 URL: https://issues.apache.org/jira/browse/OAK-5983
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: blob
>            Reporter: Chetan Mehrotra
>            Assignee: Amit Jain
>             Fix For: 1.8, 1.7.10
>
>
> Currently BlobGC logic reports the number of blobs removed
> {noformat}
> 24.03.2017 12:33:33.120 *INFO* [sling-oak-observation-205] org.apache.jackrabbit.oak.plugins.blob.MarkSweepGarbageCollector Blob garbage collection completed in 16.76 s. Number of blobs deleted [1776] with max modification time of [2017-03-23 12:33:16.373]
> {noformat}
> It would helpful it can also report the size reclaimed by deleted those blobs



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