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Posted to oak-issues@jackrabbit.apache.org by "Alex Parvulescu (JIRA)" <ji...@apache.org> on 2016/09/26 09:36:20 UTC
[jira] [Comment Edited] (OAK-4844) Analyse effects of simplified
record ids
[ https://issues.apache.org/jira/browse/OAK-4844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15522577#comment-15522577 ]
Alex Parvulescu edited comment on OAK-4844 at 9/26/16 9:35 AM:
---------------------------------------------------------------
test results using the patch: size is {{13GB}}
{noformat}
Total size:
13 GB in 56521 data segments
768 KB in 3 bulk segments
3 GB in maps (46450859 leaf and branch records)
1 GB in lists (55469092 list and bucket records)
3 GB in values (value and block records of 70765678 properties, 3429/378684/0/1214419 small/medium/long/external blobs, 46258452/1862224/159 small/medium/long strings)
161 MB in templates (16772712 template records)
2 GB in nodes (251591739 node records)
links to non existing segments: []
{noformat}
was (Author: alex.parvulescu):
test results using the patch: size is {{13GB}}
{noformat
Total size:
13 GB in 56521 data segments
768 KB in 3 bulk segments
3 GB in maps (46450859 leaf and branch records)
1 GB in lists (55469092 list and bucket records)
3 GB in values (value and block records of 70765678 properties, 3429/378684/0/1214419 small/medium/long/external blobs, 46258452/1862224/159 small/medium/long strings)
161 MB in templates (16772712 template records)
2 GB in nodes (251591739 node records)
links to non existing segments: []
{noformat}
> Analyse effects of simplified record ids
> ----------------------------------------
>
> Key: OAK-4844
> URL: https://issues.apache.org/jira/browse/OAK-4844
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: segment-tar
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Labels: performance
> Fix For: Segment Tar 0.0.14
>
> Attachments: OAK-4844.patch
>
>
> OAK-4631 introduced a simplified serialisation for record ids. This causes their footprint on disk to increase from 3 bytes to 18 bytes. OAK-4631 has some initial analysis on the effect this is having on repositories as a whole.
> I'm opening this issue as a dedicated task to further look into mitigation strategies (if necessary).
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