Re: SUN JDK on zseries
We have one customer area that is pretty insistent on trying to run a Weblogic application with a SUN JDK. They are runnning on a 64-bit SLES9 server. We have told them that it would not be a vendor certified configuration (BEA says to use IBM 1.4.2 s1ra). We also stated our IBM support contract would most likely not cover this. They want to know WHY only IBM JDK's are certified. Aside from the minor detail that Sun does not provide JDK binaries for zSeries and does not support the platform at all, no reason at all. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUN JDK on zseries
Because no one has ported the HotSpot/JIT code (which is architecture dependent) to s390. Sun uses their Hotspot compiler to take the Java byte codes and create native s390 instruction sequences. I ported the 1.2 and 1.3 JDKs when they still used a Just In Time compiler (JIT) but hesitated when they went to Hotspot as most of the code was in C++ and there was a ton of work to do. So basically, you can't certify what doesn't exist. I'm not sure the interpreter-only mode of operation is supported (and even that would require some architecturally dependent code to handle parameter passing conventions), it's certainly not desirable from a performance standpoint. -Original Message- We have one customer area that is pretty insistent on trying to run a Weblogic application with a SUN JDK. They are runnning on a 64-bit SLES9 server. We have told them that it would not be a vendor certified configuration (BEA says to use IBM 1.4.2 s1ra). We also stated our IBM support contract would most likely not cover this. They want to know WHY only IBM JDK's are certified. They commonly use Java hot spot options that are not available with an IBM JDK (options that let you split into multiple heaps). In any case, are there any stats available to show that the IBM JDK is best for the platform? Or a good answer to the WHY? -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUN JDK on zseries
Slightly off-topic, but I wonder how long until someone decides to port OpenSolaris to s390? I read that the port to PPC reached an operational state in the last week. -Sam -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of David Boyes Sent: Thursday, January 12, 2006 9:23 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: SUN JDK on zseries We have one customer area that is pretty insistent on trying to run a Weblogic application with a SUN JDK. They are runnning on a 64-bit SLES9 server. We have told them that it would not be a vendor certified configuration (BEA says to use IBM 1.4.2 s1ra). We also stated our IBM support contract would most likely not cover this. They want to know WHY only IBM JDK's are certified. Aside from the minor detail that Sun does not provide JDK binaries for zSeries and does not support the platform at all, no reason at all. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUN JDK on zseries
There was talk of this late last fall. If they are still interested in working on it, I'm sure they'll either pipe up or let folks know when it's ready. Kielek, Samuel wrote: Slightly off-topic, but I wonder how long until someone decides to port OpenSolaris to s390? I read that the port to PPC reached an operational state in the last week. -Sam -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of David Boyes Sent: Thursday, January 12, 2006 9:23 AM To: LINUX-390@VM.MARIST.EDU Subject: Re: SUN JDK on zseries We have one customer area that is pretty insistent on trying to run a Weblogic application with a SUN JDK. They are runnning on a 64-bit SLES9 server. We have told them that it would not be a vendor certified configuration (BEA says to use IBM 1.4.2 s1ra). We also stated our IBM support contract would most likely not cover this. They want to know WHY only IBM JDK's are certified. Aside from the minor detail that Sun does not provide JDK binaries for zSeries and does not support the platform at all, no reason at all. -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 -- Rich Smrcina VM Assist, Inc. Main: (262)392-2026 Cell: (414)491-6001 Ans Service: (360)715-2467 rich.smrcina at vmassist.com Catch the WAVV! http://www.wavv.org WAVV 2006 - Chattanooga, TN - April 7-11, 2006 -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUN JDK on zseries
Slightly off-topic, but I wonder how long until someone decides to port OpenSolaris to s390? I read that the port to PPC reached an operational state in the last week. Watch this space. 8-) -- db -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
Re: SUN JDK on zseries
As David pointed out, Sun doesn't provide binaries for anything to run on IBM's mainframe architecture. In the general case, though, the question of why boils down to what ever the ISV decides is in their best interests as a business, since it takes quite a bit of time and money to certify and support a product on any given platform. That's why you'll see some ISVs certify their product on SUSE Linux, but not Red Hat, or vice versa. It all comes down to finite resources. Mark Post -Original Message- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Smith, Ann (ISD, IT) Sent: Thursday, January 12, 2006 9:11 AM To: LINUX-390@VM.MARIST.EDU Subject: SUN JDK on zseries We have one customer area that is pretty insistent on trying to run a Weblogic application with a SUN JDK. They are runnning on a 64-bit SLES9 server. We have told them that it would not be a vendor certified configuration (BEA says to use IBM 1.4.2 s1ra). We also stated our IBM support contract would most likely not cover this. They want to know WHY only IBM JDK's are certified. They commonly use Java hot spot options that are not available with an IBM JDK (options that let you split into multiple heaps). In any case, are there any stats available to show that the IBM JDK is best for the platform? Or a good answer to the WHY? -- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
