Latest Contributions by MoginrajMohandas

Hi, this is being tracked as part of ENH-000126060. It is planned to be available in the next release of the software. ... View more

All ArcGIS Server machines are "peers" of each other and are added to increase resources to handle load, provide high availability, migrate to new machines etc. There is no concept of "standby" for the machines that are part of an ArcGIS Server site. You would need the ArcGIS Web Adaptor or some other Load Balancer/Reverse Proxy set up so requests can be distributed across the machines in the site. ... View more

The HealthCheck on ArcGIS Server is a good way to know the health of the Server and a reasonably good indication of whether services are available for use. There is a similar healthcheck in Portal for ArcGIS as well that you can look into.  I wonder, in a case where the RAM of the server is full and most of the map services cannot resolved, does the Health Check will returns an error? You can use the Hardware configuration resource to check the hardware resources information for ArcGIS Server and take action accordingly. Having said this, ArcGIS Monitor is a good product to look into to as Nathaniel suggested. There's a lot of alerts and other features built-in. ... View more

"instances per process" means that you can assign multiple instances of a service to run under the same ArcSOC process. This is prone to stability issues, and we have actively discouraged it for some time now(hence the option disappearing from ArcGIS Server Manager), and will eventually be removed from the software. I would recommend trying out Shared Instances which is the new way to configure instances for your Map services. Introducing shared instances in ArcGIS Server 10.7   ... View more

Hi Dan, are you still seeing this? ... View more

Hello Mark and others, I hope you were able to try out the 10.6.1 and 10.7.1 patches. It would be good to verify that this resolved the synchronization and service restart issues you all were observing. Thanks!! ... View more

Glad it was resolved. Curious as to how it got into that state. Any history on what kind of load was on the system, or any adminstrative actions being done. Basically, anything you can think of that was being done before the system got into this state? Any information would help. ... View more

Pls also refer to the following blog that shares a sample of how to iterate through services and bulk move services from Dedicatd to Shared instances. Move services to shared instances using Python  ... View more

One potential way for the multi-machine "upgrade at your leisure" requirement, is to unregister each machine and upgrade it at your leisure, and keep doing this(machine after machine) until you reach the last machine. Only when you upgrade that last machine would the site configurations really get upgraded. Post last machine upgrade, you can add all the other machines back.  This is under the assumption that you can afford some period where you have less number of machines(it can be staggered based on an interval that you prefer). Also, you will need to re-import any certificates that were used by each of the machines. This is not ideal, but just a thought since you mentioned upgrading each machine at your leisure. ... View more

Mark and others,                                 This behavior is being tracked as BUG-000124827 and a fix is currently being built. Once a fix is available, we plan on releasing patches with the fix for both ArcGIS Server 10.6.1 and 10.7.1. I can't give a specific date for when those patches will be ready, but I hope sometime within the next 5-6 weeks if not sooner. ... View more

Synchronization happening under heavy load can potentially cause this behavior. This is more drastic in your case since synchronization is happening often and it is a very destructive operation. Ideally, a synchronization is only meant for a machine that was temporarily down/unavailable and then comes back.  10.7.1 does not have a fix for the issue, we are working on the fix. Now, 10.7/10.7.1 has a feature called "Under Maintenence" that can be set on any machine which will make that machine return a failed healthcheck. If your proxy/LB uses ArcGIS Server's healtcheck url to check its health(this is per machine and the url is https://machineName.domain.com:6443/arcgis/rest/info/healthcheck ), then you can leverage this to allow your proxy to not send traffic to a specific machine and then revert the "Under Maintenence" flag when you think it is ready.  ... View more

Copying the server.xml from another working server is a good solution here. Glad it worked for you. Remember to re-import any certs you had on the ArcGIS Server machine. It may be also good to do a restart of ArcGIS Server first so that a new keystore gets created for this server, and then re-import any certificates as necessary. ... View more

Mark Chilcott‌ Any additional information on what the SOAP cache is and what it does? - The soap and rest caches cache response information in memory so you get better performance for frequently used operations on services.  With the load on the server, it may not be possible to move to single machine site.  However we are considering Single-machine high-availability (active-active) deployment. Any thoughts on this configuration? - If you have a set number of services, and that number does not change often, this configuration may be an option. Is that the case? Another consideration is 10.7.1.  I did hear mention there may be changes in this release in the manner the servers communicate with each other that may address this.  Thoughts? - We have made some improvements in 10.7/10.7.1 for sites with multiple machines which adds more reliability and stability to the site. Pls check What's new in ArcGIS Server 10.7.1—Documentation | ArcGIS Enterprise  under sections titled "Management" and "Monitoring". As for the issue you are seeing, it is a bug which we are actively investigating. ... View more