On Wed, Oct 12, 2016 at 10:51 AM, Fathima Dilhasha <dilha...@wso2.com> wrote:
> Hi All, > > I had a chat with KasunG and following are the facts I got to know which > explains the latency I was experiencing. > > 1. There is a scheduled task which is running in the DepSync enabled > manager nodes to commit new artifacts. > (The *DeploymentUpdateInterval* in carbon.xml defines how often the > task is run). > > But this task is run only if the tenant is loaded at the specific > node. > When there are new artifacts, the manager node sends a cluster > message to the other node indicating that there are new artifacts. > > 2. To compensate for any lost cluster messages there is a mandatory sync > mechanism run at each node irrespective of tenant loading. > This task is run every 5-10 mins. > It is 5-15 mins by default. The max time is configurable. But, this won't run if the tenant is not loaded. > > So, if tenant is not loaded at Node 1 and a file is changed at > "APIM/repository/tenants/<tenantId>/.., > There is a latency of up to *15mins* until the changes are committed to > SVN. > > @KasunG, Please correct me if I've understood anything wrong. > > This is correct. > Thanks and Regards, > Dilhasha > > > > On Thu, Oct 6, 2016 at 10:15 AM, Fathima Dilhasha <dilha...@wso2.com> > wrote: > >> Thanks Thilini. I will go through the webinar. >> >> On Thu, Oct 6, 2016 at 10:13 AM, Thilini Cooray <thili...@wso2.com> >> wrote: >> >>> Hi Fathima, >>> >>> The delay in committing to svn can be caused by network latency. >>> Have you specifically defined a checkout time period in your worker >>> nodes? >>> >>> [1] is the webinar which clearly explains about the Dep-Sync mechanism. >>> >>> Hope it will give you an idea about the dep-sync behvior. >>> >>> [1] http://wso2.com/library/webinars/2012/10/enterprise-use- >>> case-webinar-wso2-depsync-data-synchronization-between-nodes-cluster/ >>> >>> Thanks. >>> >>> On Thu, Oct 6, 2016 at 10:02 AM, Fathima Dilhasha <dilha...@wso2.com> >>> wrote: >>> >>>> I have a cluster with two nodes of WSO2 API Manager 1.10.0 with the >>>> following configurations for DeploymentSynchronizer. >>>> (Note that both the nodes are capable of committing.) >>>> >>>> <DeploymentUpdateInterval>120</DeploymentUpdateInterval> >>>> ............ >>>> <DeploymentSynchronizer> >>>> <Enabled>true</Enabled> >>>> <AutoCommit>true</AutoCommit> >>>> <AutoCheckout>true</AutoCheckout> >>>> ....... >>>> </DeploymentSynchronizer> >>>> >>>> I had the following observations when changing files at the path >>>> "APIM/repository/tenants/<tenantId>/.." >>>> >>>> When I change a file within a folder in above path at 1 node, >>>> there is a latency of about 8mins until the change is committed to svn >>>> repo. (Note that update interval is only 2mins) >>>> >>>> I am not very clear about why there is a latency more than expected? >>>> Can this be due to added network latency? >>>> >>>> I would appreciate if you can point me to any documentation with >>>> details about the internals of depSync. >>>> >>>> I have referred to [1] >>>> >>>> [1] https://docs.wso2.com/display/CLUSTER420/Introduction+to >>>> +Deployment+Synchronizer >>>> >>>> Thanks & Regards, >>>> Dilhasha >>>> >>>> -- >>>> Fathima Dilhasha >>>> *Software Engineer* >>>> Mobile : +94 (0) 771663314 <%2B94%20%280%29%20773655496> >>>> <%2B94%20%280%29%20773%20451194> >>>> dilha...@wso2.com <madha...@wso2.com> >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> Dev@wso2.org >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >>> >>> -- >>> Best Regards, >>> >>> *Thilini Cooray* >>> Software Engineer >>> Mobile : +94 (0) 774 570 112 <%2B94%20%280%29%20774%20570112> >>> E-mail : thili...@wso2.com >>> >>> WSO2 Inc. www.wso2.com >>> lean.enterprise.middleware >>> >> >> >> >> -- >> Fathima Dilhasha >> *Software Engineer* >> Mobile : +94 (0) 771663314 <%2B94%20%280%29%20773655496> >> <%2B94%20%280%29%20773%20451194> >> dilha...@wso2.com <madha...@wso2.com> >> > > > > -- > Fathima Dilhasha > *Software Engineer* > Mobile : +94 (0) 771663314 <%2B94%20%280%29%20773655496> > <%2B94%20%280%29%20773%20451194> > dilha...@wso2.com <madha...@wso2.com> > -- *Kasun Gajasinghe*Associate Technical Lead, WSO2 Inc. email: kasung AT spamfree wso2.com linked-in: http://lk.linkedin.com/in/gajasinghe blog: http://kasunbg.org phone: +1 650-745-4499, 77 678 0813
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