Re: zSeries HMC forcible disconnect issue - anybody seen this one before?
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:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Ambros, Thomas > Sent: Monday, March 09, 2015 2:56 PM > To: IBM-MAIN@LISTSERV.UA.EDU > 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:IBM-MAIN@LISTSERV.UA.EDU] > On Behalf Of Ed Gould > Sent: Monday, March 09, 2015 12:48 > To: IBM-MAIN@LISTSERV.UA.EDU > 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. It is intended solely for the use of the addressee. If > > you are not the intended recipient, you are strictly prohibited from > > disclosing, copying, distributing or using any of this information. If > > you received this communication in error, please contact the sender > > immediately and destroy the material in its entirety, whether > > electronic or hard copy. This communication may contain nonpublic > > personal information about consumers subject to the restrictions of > > the Gramm-Leach-Bliley Act. You may not directly or indirectly reuse > > or redisclose such information for any purpose other than to provide > > the services for which you are receiving the information. > > > > 127 Public Square, Cleveland, OH 44114 If you prefer not to receive > > future e-mail offers for products or services from Key send an e-mail > > to mailto:dnereque...@key.com with 'No Promotional E- mails' in the > > SUBJECT line. > > > > > > -- > > For IBM-MAIN subscribe / signoff / archive access instructions, send > > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > > This communication may contain privileged and/or confidential information. > It is intended solely for the use of the addressee. If you are not the intended > recipient, you are strictly prohibited from disclosing, cop
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:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Ed Gould Sent: Monday, March 09, 2015 12:48 To: IBM-MAIN@LISTSERV.UA.EDU 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. It is intended solely for the use of the addressee. If > you are not the intended recipient, you are strictly prohibited from > disclosing, copying, distributing or using any of this information. If > you received this communication in error, please contact the sender > immediately and destroy the material in its entirety, whether > electronic or hard copy. This communication may contain nonpublic > personal information about consumers subject to the restrictions of > the Gramm-Leach-Bliley Act. You may not directly or indirectly reuse > or redisclose such information for any purpose other than to provide > the services for which you are receiving the information. > > 127 Public Square, Cleveland, OH 44114 If you prefer not to receive > future e-mail offers for products or services from Key send an e-mail > to mailto:dnereque...@key.com with 'No Promotional E- mails' in the > SUBJECT line. > > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, send > email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN This communication may contain privileged and/or confidential information. It is intended solely for the use of the addressee. If you are not the intended recipient, you are strictly prohibited from disclosing, copying, distributing or using any of this information. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act. You may not directly or indirectly reuse or redisclose such information for any purpose other than to provide the services for which you are receiving the information. 127 Public Square, Cleveland, OH 44114 If you prefer not to receive future e-mail offers for products or services from Key send an e-mail to mailto:dnereque...@key.com with 'No Promotional E-mails' in the SUBJECT line. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
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. It is intended solely for the use of the addressee. If you are not the intended recipient, you are strictly prohibited from disclosing, copying, distributing or using any of this information. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act. You may not directly or indirectly reuse or redisclose such information for any purpose other than to provide the services for which you are receiving the information. 127 Public Square, Cleveland, OH 44114 If you prefer not to receive future e-mail offers for products or services from Key send an e-mail to mailto:dnereque...@key.com with 'No Promotional E- mails' in the SUBJECT line. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: zSeries HMC forcible disconnect issue - anybody seen this one before?
You may want to check also the java console. Also setting it to debug (I guess it's done by simply typing 5 when it's opened) might help. Lucas Em 09/03/2015 12:45, "Ambros, Thomas" escreveu: > 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. > It is intended solely for the use of the addressee. If you are not the > intended recipient, you are strictly prohibited from disclosing, copying, > distributing or using any of this information. If you received this > communication in error, please contact the sender immediately and destroy > the material in its entirety, whether electronic or hard copy. This > communication may contain nonpublic personal information about consumers > subject to the restrictions of the Gramm-Leach-Bliley Act. You may not > directly or indirectly reuse or redisclose such information for any purpose > other than to provide the services for which you are receiving the > information. > > 127 Public Square, Cleveland, OH 44114 > If you prefer not to receive future e-mail offers for products or services > from Key > send an e-mail to mailto:dnereque...@key.com with 'No Promotional > E-mails' in the > SUBJECT line. > > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
