[DOCS-9586] Docs for SERVER-13345: Provide an option to disable journal compression Created: 05/Dec/16  Updated: 27/Oct/23  Resolved: 08/Dec/17

Status: Closed
Project: Documentation
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Major - P3
Reporter: Emily Hall Assignee: Unassigned
Resolution: Gone away Votes: 0
Labels: journal
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Participants:
Days since reply: 6 years, 9 weeks, 5 days ago

 Description   

Engineering Ticket Description:

I get better throughput for some workloads after disabling journal compression. At least one other JIRA was already open for perf problems with this – SERVER-9802.

My request is for a configuration option to disable it. If that is not feasible then the current code should be more clever about hiding latency from compression, like starting to compress earlier rather than in Journal::journal.

From other testing I see that MongoDB writes much more to the journal than InnoDB writes to its redo log so making MongoDB less verbose will also help. See http://smalldatum.blogspot.com/2014/03/redo-logs-in-mongodb-and-innodb.html



 Comments   
Comment by Kay Kim (Inactive) [ 08/Dec/17 ]

opened too early

Generated at Thu Feb 08 07:58:42 UTC 2024 using Jira 9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66.