Re: [users] Questions about using TCP verses TIPC with opensaf
Note that when considering the performance for protocol alternatives there are two different metrics to consider: Throughput and latency. Loading time is all about throughput. If loading-times/thoughput are identical for TCP and TIPC (all else being equal) then it may be either because TCP and TIPC provide roughly the same throughput (at the tested load). Or it could be that the bottleneck is not in the transport protocol. Dont get me wrong here: The improvements in throughput due to the changes in MDS are great. I am only talking about the why even bother tp support TICP question or equivalently when to use TIPC question. I would say that if you have applications with quite tight realtime requirements on response times (latency) then TIPC is likely to be better. It is not ALL TIPC traffic that needs to be high-priority and realtime but at least you can configure/select some message types to be high priority (i.e. low latency). You are also not getting hard realtime but something called statistical (or soft) realtime. /Anders Bjornerstedt A V Mahesh wrote: Hi William, On 7/25/2014 12:53 AM, William R Elliott wrote: On the other hand, they have concerns about TCP because of the performance. [AVM] If you consider the latest default Opnesaf branch ( upcoming 4.5 release ) ,more or less the performance is the same. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? [AVM] For Opensaf 4.4 we haven't collected any TCP verses TIPC statistics , But recently we have taken some statistics on default Opnesaf branch ( upcoming 4.5 release ) after recent improvement in transport module. Attached OpenSAFStartupTime Second.pdf doc has some statistics on default Opnesaf branch ( upcoming 4.5 release ). I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? [AVM] This can be accomplished by using TCP Multicast**Feature it is avalible in 4.4 also. -AVM On 7/25/2014 12:53 AM, William R Elliott wrote: Hello All, I have the following two questions: We have a solution that includes opensaf 4.4. One of the potential users has concerns about both transport mechanisms used by opensaf i.e. TCP and TIPC. They are hesitating to install TIPC because of the security alert (see link below) even though a patch for this issue has been provided in the linux kernel version they have installed. https://wiki.egi.eu/wiki/EGI_CSIRT:Alerts/tipc-2011-01-07 On the other hand, they have concerns about TCP because of the performance. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? I would appreciate any answers anyone can provide! Thanks William Elliott | Sr. Analyst, Forward RD | Office: +1 (800) 519-8360 Ext. 3859 | Mobile: +1 (407) 619-0337 |--www.NetCracker.com-- Proven Partner to Communications Service Providers The information transmitted herein is intended only for the person or entity to which it is addressed and may contain confidential, proprietary and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Opensaf-users mailing list Opensaf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensaf-users -- Infragistics Professional Build stunning WinForms apps today! Reboot your WinForms applications with our WinForms controls. Build a bridge from your legacy apps to the future. http://pubads.g.doubleclick.net/gampad/clk?id=153845071iu=/4140/ostg.clktrk
Re: [users] Questions about using TCP verses TIPC with opensaf
Hi William, On 7/25/2014 12:53 AM, William R Elliott wrote: On the other hand, they have concerns about TCP because of the performance. [AVM] If you consider the latest default Opnesaf branch ( upcoming 4.5 release ) ,more or less the performance is the same. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? [AVM] For Opensaf 4.4 we haven't collected any TCP verses TIPC statistics , But recently we have taken some statistics on default Opnesaf branch ( upcoming 4.5 release ) after recent improvement in transport module. Attached OpenSAFStartupTime Second.pdf doc has some statistics on default Opnesaf branch ( upcoming 4.5 release ). I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? [AVM] This can be accomplished by using TCP Multicast**Feature it is avalible in 4.4 also. -AVM On 7/25/2014 12:53 AM, William R Elliott wrote: Hello All, I have the following two questions: We have a solution that includes opensaf 4.4. One of the potential users has concerns about both transport mechanisms used by opensaf i.e. TCP and TIPC. They are hesitating to install TIPC because of the security alert (see link below) even though a patch for this issue has been provided in the linux kernel version they have installed. https://wiki.egi.eu/wiki/EGI_CSIRT:Alerts/tipc-2011-01-07 On the other hand, they have concerns about TCP because of the performance. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? I would appreciate any answers anyone can provide! Thanks William Elliott | Sr. Analyst, Forward RD | Office: +1 (800) 519-8360 Ext. 3859 | Mobile: +1 (407) 619-0337 |--www.NetCracker.com-- Proven Partner to Communications Service Providers The information transmitted herein is intended only for the person or entity to which it is addressed and may contain confidential, proprietary and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Opensaf-users mailing list Opensaf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensaf-users OpenSAFStartupTime Second.pdf Description: Adobe PDF document -- Infragistics Professional Build stunning WinForms apps today! Reboot your WinForms applications with our WinForms controls. Build a bridge from your legacy apps to the future. http://pubads.g.doubleclick.net/gampad/clk?id=153845071iu=/4140/ostg.clktrk___ Opensaf-users mailing list Opensaf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensaf-users
Re: [users] Questions about using TCP verses TIPC with opensaf
Hi William, We assessed this concern at the time of design it self , so made the initial discovery (broadcast/multicast message ) time as configurable in secs , by default `DTM_INI_DIS_TIMEOUT_SECS=5` is secs see ditmd.conf. This means the broadcast/multicast message will comedown after initial discovery / after node joining the cluster. So no issue. -AVM On 7/25/2014 7:05 PM, William R Elliott wrote: Thanks very much for this information. I do have another question concerning broadcast/multicast information. The user will have many 3^rd party applications running in the same network as opensaf. They are concerned about the amount of broadcasting/multicasting going on in opensaf interfering with those 3^rd party applications. Can you point me to any opensaf documents or specific web pages that describes the amount of multicasting that occurs when opensaf is running? Thanks! William Elliott | Sr. Analyst, Forward RD | Office: +1 (407) 708-5059 Ext. 3859| Mobile: +1 (407) 619-0337 |--www.NetCracker.com-- *Proven Partner to Communications Service Providers* *From:*A V Mahesh [mailto:mahesh.va...@oracle.com] *Sent:* Friday, July 25, 2014 1:07 AM *To:* opensaf-users@lists.sourceforge.net; William R Elliott *Subject:* Re: [users] Questions about using TCP verses TIPC with opensaf Hi William, On 7/25/2014 12:53 AM, William R Elliott wrote: On the other hand, they have concerns about TCP because of the performance. [AVM] If you consider the latest default Opnesaf branch ( upcoming 4.5 release ) ,more or less the performance is the same. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? [AVM] For Opensaf 4.4 we haven't collected any TCP verses TIPC statistics , But recently we have taken some statistics on default Opnesaf branch ( upcoming 4.5 release ) after recent improvement in transport module. Attached OpenSAFStartupTime Second.pdf doc has some statistics on default Opnesaf branch ( upcoming 4.5 release ). I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? [AVM] This can be accomplished by using TCP Multicast**Feature it is avalible in 4.4 also. -AVM On 7/25/2014 12:53 AM, William R Elliott wrote: Hello All, I have the following two questions: We have a solution that includes opensaf 4.4. One of the potential users has concerns about both transport mechanisms used by opensaf i.e. TCP and TIPC. They are hesitating to install TIPC because of the security alert (see link below) even though a patch for this issue has been provided in the linux kernel version they have installed. https://wiki.egi.eu/wiki/EGI_CSIRT:Alerts/tipc-2011-01-07 On the other hand, they have concerns about TCP because of the performance. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? I would appreciate any answers anyone can provide! Thanks William Elliott | Sr. Analyst, Forward RD | Office: +1 (800) 519-8360 Ext. 3859 | Mobile: +1 (407) 619-0337 |--www.NetCracker.com-- Proven Partner to Communications Service Providers The information transmitted herein is intended only for the person or entity to which it is addressed and may contain confidential, proprietary and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Opensaf-users mailing list Opensaf-users
Re: [users] Questions about using TCP verses TIPC with opensaf
Thanks very much for this information. I do have another question concerning broadcast/multicast information. The user will have many 3rd party applications running in the same network as opensaf. They are concerned about the amount of broadcasting/multicasting going on in opensaf interfering with those 3rd party applications. Can you point me to any opensaf documents or specific web pages that describes the amount of multicasting that occurs when opensaf is running? Thanks! William Elliott | Sr. Analyst, Forward RD | Office: +1 (407) 708-5059 Ext. 3859 | Mobile: +1 (407) 619-0337 |--www.NetCracker.com-- Proven Partner to Communications Service Providers From: A V Mahesh [mailto:mahesh.va...@oracle.com] Sent: Friday, July 25, 2014 1:07 AM To: opensaf-users@lists.sourceforge.net; William R Elliott Subject: Re: [users] Questions about using TCP verses TIPC with opensaf Hi William, On 7/25/2014 12:53 AM, William R Elliott wrote: On the other hand, they have concerns about TCP because of the performance. [AVM] If you consider the latest default Opnesaf branch ( upcoming 4.5 release ) ,more or less the performance is the same. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? [AVM] For Opensaf 4.4 we haven't collected any TCP verses TIPC statistics , But recently we have taken some statistics on default Opnesaf branch ( upcoming 4.5 release ) after recent improvement in transport module. Attached OpenSAFStartupTime Second.pdf doc has some statistics on default Opnesaf branch ( upcoming 4.5 release ). I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? [AVM] This can be accomplished by using TCP Multicast Feature it is avalible in 4.4 also. -AVM On 7/25/2014 12:53 AM, William R Elliott wrote: Hello All, I have the following two questions: We have a solution that includes opensaf 4.4. One of the potential users has concerns about both transport mechanisms used by opensaf i.e. TCP and TIPC. They are hesitating to install TIPC because of the security alert (see link below) even though a patch for this issue has been provided in the linux kernel version they have installed. https://wiki.egi.eu/wiki/EGI_CSIRT:Alerts/tipc-2011-01-07 On the other hand, they have concerns about TCP because of the performance. Can someone point me towards any opensaf documentation or forum that discusses the pros and cons of TCP verses TICP when using opensaf, with the view of helping me Alleviate these concerns? I have one more question; the user has two machines on different subnets that they want to include in the same cluster, i.e. NODE-1 (IP 1.1.1.x) and NODE-2 (IP 1.1.2.x). Which one can I use (TCP or TIPC) to accomplish this task? I would appreciate any answers anyone can provide! Thanks William Elliott | Sr. Analyst, Forward RD | Office: +1 (800) 519-8360 Ext. 3859 | Mobile: +1 (407) 619-0337 |--www.NetCracker.com-- Proven Partner to Communications Service Providers The information transmitted herein is intended only for the person or entity to which it is addressed and may contain confidential, proprietary and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. -- Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds ___ Opensaf-users mailing list Opensaf-users@lists.sourceforge.netmailto:Opensaf-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/opensaf-users The information transmitted herein is intended only for the person or entity to which it is addressed and may contain confidential, proprietary and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer. -- Want fast
