From khapare77 at gmail.com Thu Mar 8 15:29:13 2012 From: khapare77 at gmail.com (Khapare Joshi) Date: Thu, 8 Mar 2012 15:29:13 +0000 Subject: Pirana problem with MTU fragmentation Message-ID: Hello all, I am running pulse on virtual machine for webserver, it seems working well, but there is one problem with networking I think. It seems there is a problem with lvs server is not fragmenting larger than 1500 packets size. I did the quick tcpdump and I get following info. my problem is when user is uploading files it takes for ever and never completes. I am thinking lvs (pulse) is not not fragmenting the larger packet size than 1500 hence it never goes to backend server. 16:25:22.543563 00:1f:6d:cf:4e:49 > 52:54:00:b5:30:3c, ethertype IPv4 (0x0800), length 2974: 10.128.1.5.60715 > 10.192.6.1.https: Flags [.], seq 7705:10625, ack 146, win 16388, length 2920 16:25:22.543590 52:54:00:b5:30:3c > 00:1f:6d:cf:4e:49, ethertype IPv4 (0x0800), length 590: 10.192.6.1 > 10.128.1.5: ICMP 130.208.165.177 unreachable - need to frag (mtu 1500), length 556 I tested following: 1. IP forward is enabled. 2. lro,gro are off on eth0 ethtool -k eth0 Offload parameters for eth0: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp-segmentation-offload: on udp-fragmentation-offload: on generic-segmentation-offload: on generic-receive-offload: off large-receive-offload: off 3. IPVS version is v1.2.1 4. Backend server has arptables and set to mangaled to right interface 5. Firewall is allowed on both lvs and backend server. 6. http and https are open for all. Any help in this would be great. K -------------- next part -------------- An HTML attachment was scrubbed... URL: From pr1 at pr1.ru Thu Mar 8 19:03:20 2012 From: pr1 at pr1.ru (Andrey Feldman) Date: Thu, 08 Mar 2012 23:03:20 +0400 Subject: Pirana problem with MTU fragmentation In-Reply-To: References: Message-ID: <4F590278.5080605@pr1.ru> Hi. cat /proc/sys/net/ipv4/ip_no_pmtu_disc ? tracepath 10.192.6.1 ? ifconfig -a ? On 03/08/2012 07:29 PM, Khapare Joshi wrote: > Hello all, > > I am running pulse on virtual machine for webserver, it seems working well, but there is one problem with networking I think. It seems there is a problem with lvs server is not fragmenting larger than 1500 packets size. I did the quick tcpdump and I get following info. > > > my problem is when user is uploading files it takes for ever and never completes. I am thinking lvs (pulse) is not not fragmenting the larger packet size than 1500 hence it never goes to backend server. > > 16:25:22.543563 00:1f:6d:cf:4e:49> 52:54:00:b5:30:3c, ethertype IPv4 (0x0800), length 2974: 10.128.1.5.60715> 10.192.6.1.https: Flags [.], seq 7705:10625, ack 146, win 16388, length 2920 > 16:25:22.543590 52:54:00:b5:30:3c> 00:1f:6d:cf:4e:49, ethertype IPv4 (0x0800), length 590: 10.192.6.1> 10.128.1.5 : ICMP 130.208.165.177 unreachable - need to frag (mtu 1500), length 556 > > > I tested following: > > 1. IP forward is enabled. > 2. lro,gro are off on eth0 > ethtool -k eth0 > Offload parameters for eth0: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp-segmentation-offload: on > > udp-fragmentation-offload: on > generic-segmentation-offload: on > generic-receive-offload: off > large-receive-offload: off > 3. IPVS version is v1.2.1 > 4. Backend server has arptables and set to mangaled to right interface > > 5. Firewall is allowed on both lvs and backend server. > 6. http and https are open for all. > > Any help in this would be great. > > K > > > _______________________________________________ > Piranha-list mailing list > Piranha-list at redhat.com > https://www.redhat.com/mailman/listinfo/piranha-list -------------- next part -------------- An HTML attachment was scrubbed... URL: From khapare77 at gmail.com Thu Mar 8 19:08:34 2012 From: khapare77 at gmail.com (Khapare Joshi) Date: Thu, 8 Mar 2012 19:08:34 +0000 Subject: Pirana problem with MTU fragmentation In-Reply-To: <4F590278.5080605@pr1.ru> References: <4F590278.5080605@pr1.ru> Message-ID: Hi Andrey On Thu, Mar 8, 2012 at 7:03 PM, Andrey Feldman wrote: > Hi. > cat /proc/sys/net/ipv4/ip_no_pmtu_disc ? > cat /proc/sys/net/ipv4/ip_no_pmtu_disc 0 > tracepath 10.192.6.1 ? > ifconfig -a ? > > > On 03/08/2012 07:29 PM, Khapare Joshi wrote: > > Hello all, > > I am running pulse on virtual machine for webserver, it seems working well, but there is one problem with networking I think. It seems there is a problem with lvs server is not fragmenting larger than 1500 packets size. I did the quick tcpdump and I get following info. > > > my problem is when user is uploading files it takes for ever and never completes. I am thinking lvs (pulse) is not not fragmenting the larger packet size than 1500 hence it never goes to backend server. > > 16:25:22.543563 00:1f:6d:cf:4e:49 > 52:54:00:b5:30:3c, ethertype IPv4 (0x0800), length 2974: 10.128.1.5.60715 > 10.192.6.1.https: Flags [.], seq 7705:10625, ack 146, win 16388, length 2920 > 16:25:22.543590 52:54:00:b5:30:3c > 00:1f:6d:cf:4e:49, ethertype IPv4 (0x0800), length 590: 10.192.6.1 > 10.128.1.5: ICMP 130.208.165.177 unreachable - need to frag (mtu 1500), length 556 > > > I tested following: > > 1. IP forward is enabled. > 2. lro,gro are off on eth0 > ethtool -k eth0 > Offload parameters for eth0: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp-segmentation-offload: on > > udp-fragmentation-offload: on > generic-segmentation-offload: on > generic-receive-offload: off > large-receive-offload: off > 3. IPVS version is v1.2.1 > 4. Backend server has arptables and set to mangaled to right interface > > 5. Firewall is allowed on both lvs and backend server. > 6. http and https are open for all. > > Any help in this would be great. > > K > > > > _______________________________________________ > Piranha-list mailing listPiranha-list at redhat.comhttps://www.redhat.com/mailman/listinfo/piranha-list > > > > _______________________________________________ > Piranha-list mailing list > Piranha-list at redhat.com > https://www.redhat.com/mailman/listinfo/piranha-list > -------------- next part -------------- An HTML attachment was scrubbed... URL: From pr1 at pr1.ru Thu Mar 8 19:59:42 2012 From: pr1 at pr1.ru (Andrey Feldman) Date: Thu, 08 Mar 2012 23:59:42 +0400 Subject: Pirana problem with MTU fragmentation In-Reply-To: References: <4F590278.5080605@pr1.ru> Message-ID: <4F590FAE.5090700@pr1.ru> Ok, and the other stuff too: tracepath 10.192.6.1 ? ifconfig -a ? In other words - i think problem is not in LVS, but in networking. Maybe it's better to turn on jumbos on all sides: VMware host, switches, LVS-director, Real server? Or turn it off everywhere. On 03/08/2012 11:08 PM, Khapare Joshi wrote: > Hi Andrey > > On Thu, Mar 8, 2012 at 7:03 PM, Andrey Feldman > wrote: > > Hi. > cat /proc/sys/net/ipv4/ip_no_pmtu_disc ? > > > cat /proc/sys/net/ipv4/ip_no_pmtu_disc > 0 > > tracepath 10.192.6.1 ? > ifconfig -a ? > > > On 03/08/2012 07:29 PM, Khapare Joshi wrote: >> Hello all, >> >> I am running pulse on virtual machine for webserver, it seems working well, but there is one problem with networking I think. It seems there is a problem with lvs server is not fragmenting larger than 1500 packets size. I did the quick tcpdump and I get following info. >> >> >> my problem is when user is uploading files it takes for ever and never completes. I am thinking lvs (pulse) is not not fragmenting the larger packet size than 1500 hence it never goes to backend server. >> >> 16:25:22.543563 00 :1f:6d:cf:4e:49> 52:54:00:b5:30:3c, ethertype IPv4 (0x0800), length 2974: 10.128.1.5.60715> 10.192.6.1.https: Flags [.], seq 7705:10625, ack 146, win 16388, length 2920 >> 16:25:22.543590 52 :54:00:b5:30:3c> 00:1f:6d:cf:4e:49, ethertype IPv4 (0x0800), length 590: 10.192.6.1> 10.128.1.5 : ICMP 130.208.165.177 unreachable - need to frag (mtu 1500), length 556 >> >> >> I tested following: >> >> 1. IP forward is enabled. >> 2. lro,gro are off on eth0 >> ethtool -k eth0 >> Offload parameters for eth0: >> rx-checksumming: on >> tx-checksumming: on >> scatter-gather: on >> tcp-segmentation-offload: on >> >> udp-fragmentation-offload: on >> generic-segmentation-offload: on >> generic-receive-offload: off >> large-receive-offload: off >> 3. IPVS version is v1.2.1 >> 4. Backend server has arptables and set to mangaled to right interface >> >> 5. Firewall is allowed on both lvs and backend server. >> 6. http and https are open for all. >> >> Any help in this would be great. >> >> K >> >> >> _______________________________________________ >> Piranha-list mailing list >> Piranha-list at redhat.com >> https://www.redhat.com/mailman/listinfo/piranha-list > > > _______________________________________________ > Piranha-list mailing list > Piranha-list at redhat.com > https://www.redhat.com/mailman/listinfo/piranha-list > > > > > _______________________________________________ > Piranha-list mailing list > Piranha-list at redhat.com > https://www.redhat.com/mailman/listinfo/piranha-list -------------- next part -------------- An HTML attachment was scrubbed... URL: From khapare77 at gmail.com Fri Mar 9 16:27:53 2012 From: khapare77 at gmail.com (Khapare Joshi) Date: Fri, 9 Mar 2012 16:27:53 +0000 Subject: piranha on redhat 5 Message-ID: I am just curious, can i still install piranha on redhat 5 ? I register my host to redhat to get updates but if i do yum install piranha i do not find it. which subscription i have to use to get piranha on redhat 5 host. This is just for testing ? KH -------------- next part -------------- An HTML attachment was scrubbed... URL: From rrajaram at redhat.com Fri Mar 9 16:32:43 2012 From: rrajaram at redhat.com (Ranjith Rajaram) Date: Fri, 09 Mar 2012 17:32:43 +0100 Subject: piranha on redhat 5 In-Reply-To: References: Message-ID: <4F5A30AB.1020006@redhat.com> On 03/09/2012 05:27 PM, Khapare Joshi wrote: > yum install piranha You need to have the system registered to the RHEL 5 "Clustering channel"(child channel) For this you need to have "Load Balancer" addon subscription Best regards -- Ranjith Rajaram RHCA, RHCDS Team Lead,Sr.Technical Account Manager, Global Support Services. */"Developing Software is humane but supporting them is divine"/* From khapare77 at gmail.com Fri Mar 9 17:03:40 2012 From: khapare77 at gmail.com (Khapare Joshi) Date: Fri, 9 Mar 2012 17:03:40 +0000 Subject: piranha on redhat 5 In-Reply-To: <4F5A30AB.1020006@redhat.com> References: <4F5A30AB.1020006@redhat.com> Message-ID: I have following channels avilable which one I should pick up then as a child RHEL FasTrack (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) RHEL FasTrack Debuginfo (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) RHEL Optional Productivity Apps (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) RHEL Optional Productivity Apps Debuginfo (v. 5 for x86_64) (Channel Details) Consumes a regular entitlement (50 available) RHEL Supplementary (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) RHEL Supplementary Debuginfo (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) RHEL Virtualization (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) RHEL Virtualization Debuginfo (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) Red Hat Enterprise Linux Debuginfo (v. 5 for 64-bit x86_64) (Channel Details) Consumes a regular entitlement (50 available) Red Hat Enterprise Virt Agent (v.5 Server for x86_64) (Channel Details) Consumes a regular entitlement (50 available) Red Hat Network Tools for RHEL Server (v.5 64-bit x86_64) (Channel Details) On Fri, Mar 9, 2012 at 4:32 PM, Ranjith Rajaram wrote: > > > On 03/09/2012 05:27 PM, Khapare Joshi wrote: > >> yum install piranha >> > > You need to have the system registered to the RHEL 5 "Clustering > channel"(child channel) > > For this you need to have "Load Balancer" addon subscription > > Best regards > > > > -- > Ranjith Rajaram > RHCA, RHCDS > Team Lead,Sr.Technical Account Manager, > Global Support Services. > > */"Developing Software is humane but supporting them is divine"/* > > ______________________________**_________________ > Piranha-list mailing list > Piranha-list at redhat.com > https://www.redhat.com/**mailman/listinfo/piranha-list > -------------- next part -------------- An HTML attachment was scrubbed... URL: From rrajaram at redhat.com Fri Mar 9 17:12:25 2012 From: rrajaram at redhat.com (Ranjith Rajaram) Date: Fri, 09 Mar 2012 18:12:25 +0100 Subject: piranha on redhat 5 In-Reply-To: References: <4F5A30AB.1020006@redhat.com> Message-ID: <4F5A39F9.8000604@redhat.com> piranha is included in the RHEL Clustering channel check the below given url for Loadbalancer addon http://www.redhat.com/products/enterprise-linux-add-ons/load-balancing/ I do not see it listed here On 03/09/2012 06:03 PM, Khapare Joshi wrote: > I have following channels avilable which one I should pick up then as > a child > > RHEL FasTrack (v. 5 for 64-bit x86_64) (Channel Details > ) > Consumes a regular entitlement (50 available) > RHEL FasTrack Debuginfo (v. 5 for 64-bit x86_64) (Channel Details > ) > Consumes a regular entitlement (50 available) > RHEL Optional Productivity Apps (v. 5 for 64-bit x86_64) (Channel > Details > ) > Consumes a regular entitlement (50 available) > RHEL Optional Productivity Apps Debuginfo (v. 5 for x86_64) (Channel > Details > ) > Consumes a regular entitlement (50 available) > RHEL Supplementary (v. 5 for 64-bit x86_64) (Channel Details > ) > Consumes a regular entitlement (50 available) > RHEL Supplementary Debuginfo (v. 5 for 64-bit x86_64) (Channel Details > ) > Consumes a regular entitlement (50 available) > RHEL Virtualization (v. 5 for 64-bit x86_64) (Channel Details > ) > Consumes a regular entitlement (50 available) > RHEL Virtualization Debuginfo (v. 5 for 64-bit x86_64) (Channel > Details > ) > Consumes a regular entitlement (50 available) > Red Hat Enterprise Linux Debuginfo (v. 5 for 64-bit x86_64) (Channel > Details > ) > Consumes a regular entitlement (50 available) > Red Hat Enterprise Virt Agent (v.5 Server for x86_64) (Channel Details > ) > Consumes a regular entitlement (50 available) > Red Hat Network Tools for RHEL Server (v.5 64-bit x86_64) (Channel > Details > ) > > > > On Fri, Mar 9, 2012 at 4:32 PM, Ranjith Rajaram > wrote: > > > > On 03/09/2012 05:27 PM, Khapare Joshi wrote: > > yum install piranha > > > You need to have the system registered to the RHEL 5 "Clustering > channel"(child channel) > > For this you need to have "Load Balancer" addon subscription > > Best regards > > > > -- > Ranjith Rajaram > RHCA, RHCDS > Team Lead,Sr.Technical Account Manager, > Global Support Services. > > */"Developing Software is humane but supporting them is divine"/* > > _______________________________________________ > Piranha-list mailing list > Piranha-list at redhat.com > https://www.redhat.com/mailman/listinfo/piranha-list > > > > _______________________________________________ > Piranha-list mailing list > Piranha-list at redhat.com > https://www.redhat.com/mailman/listinfo/piranha-list -- Ranjith Rajaram RHCA, RHCDS Team Lead,Sr.Technical Account Manager, Global Support Services. */"Developing Software is humane but supporting them is divine"/* -------------- next part -------------- An HTML attachment was scrubbed... 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