PowerFlex 3.X: RestAPI Call To Switch MDM Ownership Fails

Summary: The RestAPI call to switch MDM ownership through the Gateway fails with a timeout.

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Symptoms

 - The gateway does not reside on one of the MDMs or SDSs in the cluster but is external to the cluster nodes. 
 - Running the ../api/instances/System/action/changeMdmOwnership RestAPI call fails with the following error:

 curl -k --basic --user admin:$token -X POST -H "Content-Type: application/json" -d '{"id":"5cfc374653886a00"}' https://xx.yy.xx.zz/api/instances/System/action/changeMdmOwnership
{"message":"java.net.SocketTimeoutException: connect timed out","httpStatusCode":500,"errorCode":1}

 - The scaleio.log in the gateway logs shows this:

 2021-11-17 15:37:23,784 [https-jsse-nio-443-exec-2] ERROR c.e.s.s.s.ConnectionServiceImpl - Error invoking connection call to server
java.net.SocketTimeoutException: connect timed out
        at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_121]
        at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) ~[na:1.8.0_121]
        at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) ~[na:1.8.0_121]
        at java.net.AbstractPlainSocketImpl.connect(Unknown Source) ~[na:1.8.0_121]
        at java.net.SocksSocketImpl.connect(Unknown Source) ~[na:1.8.0_121]
        at java.net.Socket.connect(Unknown Source) ~[na:1.8.0_121]

 - Switch MDM ownership through the scli command line works fine
 - Other RestAPI calls through the PowerFlex Gateway work properly

 

Impact

Unable to switch MDM ownership through RestAPI calls.

Cause

Upon MDM ownership change, port 9011 is used to respond to the gateway to announce the new owner was successful in taking ownership of the cluster. In this case, port 9011 was blocked between the Gateway and the MDMs. 

Resolution

Open port 9011 between the Gateway and the MDMs

 

Impacted Versions

PowerFlex 3.x and above

Fixed In Version

Working as designed

Affected Products

PowerFlex Appliance, PowerFlex custom node, PowerFlex Software
Article Properties
Article Number: 000196837
Article Type: Solution
Last Modified: 13 مايو 2026
Version:  7
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