I opened a PMR and found that IBM is working on a Java 8 issue. They do not have an ETA for a fix.
> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Ambros, Thomas > Sent: Monday, March 09, 2015 2:56 PM > To: [email protected] > Subject: Re: zSeries HMC forcible disconnect issue - anybody seen this one > before? > > Java issue. Downgrading to version 6 as on old hosts worked around it. SR > time... > > Thomas Ambros > zEnterprise Operating Systems > zEnterprise Systems Management > 518-436-6433 > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] > On Behalf Of Ed Gould > Sent: Monday, March 09, 2015 12:48 > To: [email protected] > Subject: Re: zSeries HMC forcible disconnect issue - anybody seen this one > before? > > Call MS. > > Ed > > On Mar 9, 2015, at 10:45 AM, Ambros, Thomas wrote: > > > Remote access to our HMCs is controlled through a 'jump host' we > > access through Citrix in normal circumstances. I'm experiencing this > > problem when I use Windows Remote Desktop access to that jump host, > > bypassing Citrix, so I believe it is something to do with the Windows > > machine that is the jump host. > > > > This is a new issue after our Windows guys upgraded the jump host to > > Windows Server 2008 R2 Datacenter 6.1.7601, Java Version 8 update 31 > > and we're using Internet Explorer version 8. I'm pretty sure IE is > > unchanged. > > > > The zSeries HMCs are at 2.12.0 and are unchanged, obviously. > > > > The problem is a fairly consistent forcible session disconnect after > > 45 seconds. The HMC log simply reports that it was forcibly > > disconnected with no further details, and I haven't found anything in > > any of Window's logs to indicate what or why it was done. It's not an > > inactivity timeout, active use of the HMC gets cut off just as a > > session that is not being used. > > > > It appears to be restricted to the zSeries HMC, for example our > > Storage Admin team reports no problems with their TPC-R browser > > sessions through the same jump host. My next move is to find the Java > > configuration file options and see if there's some mindless default in > > there. > > > > I haven't opened an SR yet, I was throwing it out here in case > > somebody's seen this sort of symptom themselves. Already raised the > > issue of backing out to our Windows team, if they can't assist in > > diagnostics, but I'd prefer to fix it not really having the time to go > > through the annoyance of reinstall. > > > > Thanks... > > > > Thomas Ambros > > zEnterprise Operating Systems > > zEnterprise Systems Management > > 518-436-6433 > > > > > > > > > > This communication may contain privileged and/or confidential > > information. 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