set_monitor_state throws AxisFault with return code 0

did anyone ever figure out the resolution to this?

Without seeing the input parameters it's hard to tell. If it works part of the time, then odds are there may be a server issue going on. Have you looked at the server logs to see if the iControlPortal had an issue (crash or something else logged)? I haven't heard of this issue before...

Hi Joe, Both Janeka and I work for the same company. We are still seeing this problem when we attempt to gracefully disable a pool member. Please let me know if you need any additional information. Thank you!

=====From our log file: ... Current Connections: 4 Current Connections: 4 Current Connections: 4 AxisFault faultCode: {http://xml.apache.org/axis/}HTTP faultSubcode: faultString: (0)null faultActor: faultNode: faultDetail: {}:return code: 0

    {http://xml.apache.org/axis/}HttpErrorCode:0

(0)null
    at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:744)
    at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:144)
    at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
    at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
    at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
    at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
    at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
    at org.apache.axis.client.Call.invoke(Call.java:2767)
    at org.apache.axis.client.Call.invoke(Call.java:2443)
    at org.apache.axis.client.Call.invoke(Call.java:2366)
    at org.apache.axis.client.Call.invoke(Call.java:1812)
    at iControl.LocalLBPoolMemberBindingStub.get_statistics(LocalLBPoolMemberBindingStub.java:1296)
    at com.premier.controls.MemberStopStart.checkConnections(MemberStopStart.java:83)
    at com.premier.controls.MemberStopStart.disablePoolMember(MemberStopStart.java:42)
    at com.premier.controls.ControlMain.Run(ControlMain.java:40)
    at com.premier.controls.ControlMain.main(ControlMain.java:18)

====Following is the code snippet where this problem occurs:

private boolean checkConnections() {

System.out.println("Waiting for current connections to drop to zero...");

    CommonIPPortDefinition memberDef = new CommonIPPortDefinition();
    memberDef.setAddress(memberAddress);
    memberDef.setPort(Long.parseLong(memberPort));
    CommonIPPortDefinition[] memberDefA = {memberDef};
    CommonIPPortDefinition[][] memberDefAofA = {memberDefA};

    long cur_connections = 1;
    while (cur_connections > 0) {
        LocalLBPoolMemberMemberStatistics[] memberStatsA = interfaces.getLocalLBPoolMember().get_statistics(poolArray, memberDefAofA);
        LocalLBPoolMemberMemberStatistics memberStats = memberStatsA[0];
        LocalLBPoolMemberMemberStatisticEntry[] statsEntryA = memberStats.getStatistics();
        LocalLBPoolMemberMemberStatisticEntry statsEntry = statsEntryA[0];
        CommonStatistic[] statsA = statsEntry.getStatistics();
        for (int i = 0; i < statsA.length; i++) {
            CommonStatisticType type = statsA[i].getType();
            CommonULong64 value64 = statsA[i].getValue();
            if (type == CommonStatisticType.STATISTIC_SERVER_SIDE_CURRENT_CONNECTIONS) {
                cur_connections = value64.getLow();
                System.out.println("Current Connections: " + cur_connections);
            }
        }
        Thread.currentThread();
        Thread.sleep(1000);
    }
    return true;

}

This appears to be caused by a network issue (such as a timeout) which in turn caused the HTTP client to read NULL. This is a Java problem and is not specific to F5.

References:

• https://groups.google.com/forum/!topic/adwords-api/M-aOkaSa-c8
• http://stackoverflow.com/questions/22083362/what-type-of-exception-is-0null?answertab=votestab-top
• https://thejavablog.wordpress.com/2009/04/15/0null/