[MB-6598] Very choppy stats with Bi directional xdcr with moderate/low load. Created: 10/Sep/12  Updated: 10/Jan/13  Resolved: 19/Sep/12

Status: Closed
Project: Couchbase Server
Component/s: cross-datacenter-replication
Affects Version/s: 2.0
Fix Version/s: 2.0
Security Level: Public

Type: Bug Priority: Critical
Reporter: Ketaki Gangal Assignee: Ketaki Gangal
Resolution: Fixed Votes: 0
Labels: 2.0-beta-release-notes
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment: 2.0-1707 build
1024 vbuckets
bidirectional replication


Attachments: PNG File Screen Shot 2012-09-10 at 9.12.19 PM.png     PNG File Screen Shot 2012-09-10 at 9.12.26 PM.png     PNG File Screen Shot 2012-09-10 at 9.17.11 PM.png     PNG File Screenshot at 2012-09-13 08-31-14.png    

 Description   
Setup
------------
1. Create a 2:2 bidirectional replication between two clusters.
2. Load 3-4k ops/sec on cluster1, load 3-4k ops/sec on cluster2.

Seeing very choppy stats on both the clusters.

Attaching screenshots

CPU utilization on cluster 1, 2 is close to 90 percent.



 Comments   
Comment by Pavel Paulau [ 13/Sep/12 ]
Sometimes it's even worse.
Comment by Junyi Xie (Inactive) [ 18/Sep/12 ]
Hi Ketaki,

With recent merged fix, could you please verify the issue still exist? Thanks.
Comment by Abhinav Dangeti [ 19/Sep/12 ]
Didn't notice broken stats at all with bidirectional replication on build 1744.
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