libteam February 2016

libteam@lists.fedorahosted.org

6 participants
7 discussions

Stange problems with CentOS 7 and roundrobin runner
by Ingo Brand 07 Sep '16

07 Sep '16

Hello, I am currently setting up a high available NFS server cluster with 2 nodes using pacemaker + corosync + drbd + flashcache. The two nodes (media1 and media2) have 4 1G copper nics each. I formed 2 teams: team0: LACP with em1 and em2 connected to a switch for NFS services team1: roundrobin with em3 and em4 and MTU 9000 directly connected with copper patch cables for drbd sync During my testing everything was working as expected. Then I started to tranfer about 20TB from an old server to the new cluster. The copy process was fine for about 32 hours. Then corosync and drbd started to report errors on the roundrobin team1 interface (see logs at the end of this email). The drbd sync and corosync started to flap between states for several hours on team1. I checked the error counters with ifconfig and found a huge amount off TX dropped packets on team1 of the drbd slave node media2. There were NO other error counters raising but team1 on media2. To make this a bit more clear: - team1 on media2 (the drbd slave) showed raising TX dropped packets - em3 and em4 on media2 (the physical interfaces of team1) did not show any raising error counters. - team1 on media1 (the drbd master) did not show any raising error counters. - em3 and em4 on media1 (the physical interfaces of team1) did not show any raising error counters. I then thought maybe one of the two patch cables between the two machines was not 100% ok. So I removed em4 from team1 on both machines: "teamdctl team1 port remove em4" The error counters stopped raising. I thought: "Yeah! That cable must be broken!" But just to make sure I really found the problem I re-enabled em4 on both nodes: "teamdctl team1 port add em4" Ok, now both team1 interfaces had 2 links up again and the error counter restarted to raise again. I then stopped em3 on both nodes to force all traffic through em4: "teamdctl team1 port remove em3" And guess what? The error counters on team1 stopped raising! So in short: If I remove either one of the two physical interfaces from team1 everything is working without any errors. As soon as I enable both physical interfaces the error counters start to raise. After these tests I rebooted the slave node (media2) and added both ports to team1 again (Have you tried turning it off and on again...). After doing this, I now see TX dropped packets on the not yet rebooted media1 team1 interface. Why do I only see these errors on the team1 interface and not on em3 and em4? Currently the copy process of 20TB is still running. I think that if I reboot media1 everything will work as expected again for some time because it worked during my initial tests. But I do think that I hit a bug in the teaming driver and the raising error counters will come back. Could anybody help? Kind regards Ingo This is the used network config of team1: media1: cat /etc/sysconfig/network-scripts/ifcfg-team1_slave_0 # Generated by parse-kickstart NAME=team1 slave 0 TEAM_MASTER=team1 DEVICETYPE=TeamPort DEVICE=em3 ONBOOT=yes UUID=b7026c5b-e9cd-457c-93d2-a2799361ed90 cat /etc/sysconfig/network-scripts/ifcfg-team1_slave_1 # Generated by parse-kickstart NAME=team1 slave 1 TEAM_MASTER=team1 DEVICETYPE=TeamPort DEVICE=em4 ONBOOT=yes UUID=fbe5bc56-95f5-4f9e-a5ea-ab6b6f5e5b50 cat /etc/sysconfig/network-scripts/ifcfg-team1 # Generated by parse-kickstart UUID=4e0090cd-32d3-4c5b-be23-9f53083da4dd NAME="Team connection team1" TEAM_CONFIG="{\"runner\": {\"name\": \"roundrobin\"}}" GATEWAY= IPV6_AUTOCONF=yes BOOTPROTO=none DEVICE=team1 MTU=9000 TYPE=Team ONBOOT=yes IPV6INIT=yes DEVICETYPE=Team IPADDR0=192.168.101.31 PREFIX0=24 DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6_DEFROUTE=yes IPV6_PEERDNS=yes IPV6_PEERROUTES=yes IPV6_FAILURE_FATAL=no media2: cat /etc/sysconfig/network-scripts/ifcfg-team1_slave_0 # Generated by parse-kickstart NAME=team1 slave 0 TEAM_MASTER=team1 DEVICETYPE=TeamPort DEVICE=em3 ONBOOT=yes UUID=bfd8e77e-7eb8-47ea-ab7e-95286e073202 cat /etc/sysconfig/network-scripts/ifcfg-team1_slave_1 # Generated by parse-kickstart NAME=team1 slave 1 TEAM_MASTER=team1 DEVICETYPE=TeamPort DEVICE=em4 ONBOOT=yes UUID=93c5dfd8-3b81-4d1e-8ba9-c46f8daceb1a cat /etc/sysconfig/network-scripts/ifcfg-team1 # Generated by parse-kickstart UUID=79c843db-996c-41e4-9ee5-2a8f3da244ed NAME="Team connection team1" TEAM_CONFIG="{\"runner\": {\"name\": \"roundrobin\"}}" GATEWAY= IPV6_AUTOCONF=yes BOOTPROTO=none DEVICE=team1 MTU=9000 TYPE=Team ONBOOT=yes IPV6INIT=yes DEVICETYPE=Team IPADDR0=192.168.101.32 PREFIX0=24 DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6_DEFROUTE=yes IPV6_PEERDNS=yes IPV6_PEERROUTES=yes IPV6_FAILURE_FATAL=no Here are some system logs from both machines: ============================================================ media1: ============================================================ Nov 6 02:31:27 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412041 iface 192.168.100.31 to [1 of 10] Nov 6 02:31:29 media1 corosync[3657]: [TOTEM ] ring 0 active with no faults Nov 6 02:31:29 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412047 iface 192.168.100.31 to [1 of 10] Nov 6 02:31:31 media1 corosync[3657]: [TOTEM ] ring 0 active with no faults Nov 6 02:32:51 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412315 iface 192.168.101.31 to [1 of 10] Nov 6 02:32:53 media1 corosync[3657]: [TOTEM ] ring 1 active with no faults Nov 6 02:32:53 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412319 iface 192.168.101.31 to [1 of 10] Nov 6 02:32:54 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412321 iface 192.168.101.31 to [2 of 10] Nov 6 02:32:55 media1 corosync[3657]: [TOTEM ] Decrementing problem counter for iface 192.168.101.31 to [1 of 10] Nov 6 02:32:56 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412325 iface 192.168.101.31 to [2 of 10] Nov 6 02:32:57 media1 corosync[3657]: [TOTEM ] Decrementing problem counter for iface 192.168.101.31 to [1 of 10] Nov 6 02:32:58 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412327 iface 192.168.101.31 to [2 of 10] Nov 6 02:32:59 media1 kernel: drbd r0: PingAck did not arrive in time. Nov 6 02:32:59 media1 kernel: drbd r0: peer( Secondary -> Unknown ) conn( Connected -> NetworkFailure ) pdsk( UpToDate -> DUnknown ) Nov 6 02:32:59 media1 kernel: block drbd0: new current UUID 0C0308FA4F94F811:59E43E5FD7B26A4F:1963884285B385E6:1962884285B385E6 Nov 6 02:32:59 media1 kernel: drbd r0: asender terminated Nov 6 02:32:59 media1 kernel: drbd r0: Terminating drbd_a_r0 Nov 6 02:32:59 media1 kernel: drbd r0: Connection closed Nov 6 02:32:59 media1 kernel: drbd r0: conn( NetworkFailure -> Unconnected ) Nov 6 02:32:59 media1 kernel: drbd r0: receiver terminated Nov 6 02:32:59 media1 kernel: drbd r0: Restarting receiver thread Nov 6 02:32:59 media1 kernel: drbd r0: receiver (re)started Nov 6 02:32:59 media1 kernel: drbd r0: conn( Unconnected -> WFConnection ) Nov 6 02:32:59 media1 corosync[3657]: [TOTEM ] Decrementing problem counter for iface 192.168.101.31 to [1 of 10] Nov 6 02:32:59 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412329 iface 192.168.101.31 to [2 of 10] Nov 6 02:33:01 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412333 iface 192.168.101.31 to [3 of 10] Nov 6 02:33:01 media1 corosync[3657]: [TOTEM ] Decrementing problem counter for iface 192.168.101.31 to [2 of 10] Nov 6 02:33:01 media1 crmd[4960]: notice: do_state_transition: State transition S_IDLE -> S_POLICY_ENGINE [ input=I_PE_CALC cause=C_FSA_INTERNAL origin=abort_transition_graph ] Nov 6 02:33:01 media1 pengine[4959]: notice: unpack_config: On loss of CCM Quorum: Ignore Nov 6 02:33:01 media1 pengine[4959]: warning: unpack_rsc_op: Processing failed op monitor for res_nfsserver_mediafiles on media1: unknown error (1) Nov 6 02:33:01 media1 pengine[4959]: warning: unpack_rsc_op: Processing failed op monitor for res_nfsserver_mediafiles on media2: unknown error (1) Nov 6 02:33:01 media1 pengine[4959]: notice: process_pe_message: Calculated Transition 144: /var/lib/pacemaker/pengine/pe-input-227.bz2 Nov 6 02:33:01 media1 crmd[4960]: notice: run_graph: Transition 144 (Complete=0, Pending=0, Fired=0, Skipped=0, Incomplete=0, Source=/var/lib/pacemaker/pengine/pe-input-227.bz2): Complete Nov 6 02:33:01 media1 crmd[4960]: notice: do_state_transition: State transition S_TRANSITION_ENGINE -> S_IDLE [ input=I_TE_SUCCESS cause=C_FSA_INTERNAL origin=notify_crmd ] Nov 6 02:33:01 media1 kernel: drbd r0: Handshake successful: Agreed network protocol version 101 Nov 6 02:33:01 media1 kernel: drbd r0: Agreed to support TRIM on protocol level Nov 6 02:33:01 media1 kernel: drbd r0: Peer authenticated using 20 bytes HMAC Nov 6 02:33:01 media1 kernel: drbd r0: conn( WFConnection -> WFReportParams ) Nov 6 02:33:01 media1 kernel: drbd r0: Starting asender thread (from drbd_r_r0 [5999]) Nov 6 02:33:02 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412337 iface 192.168.101.31 to [3 of 10] Nov 6 02:33:02 media1 kernel: block drbd0: drbd_sync_handshake: Nov 6 02:33:02 media1 kernel: block drbd0: self 0C0308FA4F94F811:59E43E5FD7B26A4F:1963884285B385E6:1962884285B385E6 bits:192101 flags:0 Nov 6 02:33:02 media1 kernel: block drbd0: peer 59E43E5FD7B26A4E:0000000000000000:1963884285B385E6:1962884285B385E6 bits:0 flags:0 Nov 6 02:33:02 media1 kernel: block drbd0: uuid_compare()=1 by rule 70 Nov 6 02:33:02 media1 kernel: block drbd0: peer( Unknown -> Secondary ) conn( WFReportParams -> WFBitMapS ) pdsk( DUnknown -> Consistent ) Nov 6 02:33:02 media1 kernel: block drbd0: send bitmap stats [Bytes(packets)]: plain 0(0), RLE 185(1), total 185; compression: 100.0% Nov 6 02:33:02 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412339 iface 192.168.101.31 to [4 of 10] Nov 6 02:33:03 media1 kernel: block drbd0: receive bitmap stats [Bytes(packets)]: plain 0(0), RLE 185(1), total 185; compression: 100.0% Nov 6 02:33:03 media1 kernel: block drbd0: helper command: /sbin/drbdadm before-resync-source minor-0 Nov 6 02:33:03 media1 kernel: block drbd0: helper command: /sbin/drbdadm before-resync-source minor-0 exit code 0 (0x0) Nov 6 02:33:03 media1 kernel: block drbd0: conn( WFBitMapS -> SyncSource ) pdsk( Consistent -> Inconsistent ) Nov 6 02:33:03 media1 kernel: block drbd0: Began resync as SyncSource (will sync 919244 KB [229811 bits set]). Nov 6 02:33:03 media1 kernel: block drbd0: updated sync UUID 0C0308FA4F94F811:59E53E5FD7B26A4F:59E43E5FD7B26A4F:1963884285B385E6 Nov 6 02:33:03 media1 corosync[3657]: [TOTEM ] Decrementing problem counter for iface 192.168.101.31 to [3 of 10] Nov 6 02:33:03 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412343 iface 192.168.101.31 to [4 of 10] Nov 6 02:33:04 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412345 iface 192.168.101.31 to [5 of 10] Nov 6 02:33:05 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412347 iface 192.168.101.31 to [6 of 10] Nov 6 02:33:05 media1 corosync[3657]: [TOTEM ] Decrementing problem counter for iface 192.168.101.31 to [5 of 10] Nov 6 02:33:05 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412349 iface 192.168.101.31 to [6 of 10] Nov 6 02:33:06 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412351 iface 192.168.101.31 to [7 of 10] Nov 6 02:33:07 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412355 iface 192.168.101.31 to [8 of 10] Nov 6 02:33:07 media1 corosync[3657]: [TOTEM ] Decrementing problem counter for iface 192.168.101.31 to [7 of 10] Nov 6 02:33:07 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412357 iface 192.168.101.31 to [8 of 10] Nov 6 02:33:08 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412361 iface 192.168.101.31 to [9 of 10] Nov 6 02:33:09 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412363 iface 192.168.101.31 to [10 of 10] Nov 6 02:33:09 media1 corosync[3657]: [TOTEM ] Marking seqid 412363 ringid 1 interface 192.168.101.31 FAULTY Nov 6 02:33:11 media1 crmd[4960]: notice: do_state_transition: State transition S_IDLE -> S_POLICY_ENGINE [ input=I_PE_CALC cause=C_FSA_INTERNAL origin=abort_transition_graph ] Nov 6 02:33:11 media1 pengine[4959]: notice: unpack_config: On loss of CCM Quorum: Ignore Nov 6 02:33:11 media1 pengine[4959]: warning: unpack_rsc_op: Processing failed op monitor for res_nfsserver_mediafiles on media1: unknown error (1) Nov 6 02:33:11 media1 pengine[4959]: warning: unpack_rsc_op: Processing failed op monitor for res_nfsserver_mediafiles on media2: unknown error (1) Nov 6 02:33:11 media1 pengine[4959]: notice: process_pe_message: Calculated Transition 145: /var/lib/pacemaker/pengine/pe-input-228.bz2 Nov 6 02:33:11 media1 crmd[4960]: notice: run_graph: Transition 145 (Complete=0, Pending=0, Fired=0, Skipped=0, Incomplete=0, Source=/var/lib/pacemaker/pengine/pe-input-228.bz2): Complete Nov 6 02:33:11 media1 crmd[4960]: notice: do_state_transition: State transition S_TRANSITION_ENGINE -> S_IDLE [ input=I_TE_SUCCESS cause=C_FSA_INTERNAL origin=notify_crmd ] Nov 6 02:33:17 media1 corosync[3657]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:18 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412387 iface 192.168.101.31 to [1 of 10] Nov 6 02:33:20 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412389 iface 192.168.101.31 to [2 of 10] Nov 6 02:33:20 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412391 iface 192.168.101.31 to [3 of 10] Nov 6 02:33:21 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412393 iface 192.168.101.31 to [4 of 10] Nov 6 02:33:22 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412397 iface 192.168.101.31 to [5 of 10] Nov 6 02:33:22 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412399 iface 192.168.101.31 to [6 of 10] Nov 6 02:33:24 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412403 iface 192.168.101.31 to [7 of 10] Nov 6 02:33:31 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412421 iface 192.168.101.31 to [8 of 10] Nov 6 02:33:32 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412423 iface 192.168.101.31 to [9 of 10] Nov 6 02:33:34 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412429 iface 192.168.101.31 to [10 of 10] Nov 6 02:33:34 media1 corosync[3657]: [TOTEM ] Marking seqid 412429 ringid 1 interface 192.168.101.31 FAULTY Nov 6 02:33:36 media1 corosync[3657]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:39 media1 corosync[3657]: [TOTEM ] Incrementing problem counter for seqid 412437 iface 192.168.101.31 to [1 of 10] ============================================================ media2: ============================================================ Nov 6 02:32:59 media2 kernel: drbd r0: sock was shut down by peer Nov 6 02:32:59 media2 kernel: drbd r0: peer( Primary -> Unknown ) conn( Connected -> BrokenPipe ) pdsk( UpToDate -> DUnknown ) Nov 6 02:32:59 media2 kernel: drbd r0: short read (expected size 16) Nov 6 02:32:59 media2 kernel: drbd r0: asender terminated Nov 6 02:32:59 media2 kernel: drbd r0: Terminating drbd_a_r0 Nov 6 02:32:59 media2 kernel: drbd r0: Connection closed Nov 6 02:32:59 media2 kernel: drbd r0: conn( BrokenPipe -> Unconnected ) Nov 6 02:32:59 media2 kernel: drbd r0: receiver terminated Nov 6 02:32:59 media2 kernel: drbd r0: Restarting receiver thread Nov 6 02:32:59 media2 kernel: drbd r0: receiver (re)started Nov 6 02:32:59 media2 kernel: drbd r0: conn( Unconnected -> WFConnection ) Nov 6 02:33:01 media2 attrd[4940]: notice: attrd_trigger_update: Sending flush op to all hosts for: master-res_drbd_mediafiles (1000) Nov 6 02:33:01 media2 attrd[4940]: notice: attrd_perform_update: Sent update 16: master-res_drbd_mediafiles=1000 Nov 6 02:33:01 media2 kernel: drbd r0: Handshake successful: Agreed network protocol version 101 Nov 6 02:33:01 media2 kernel: drbd r0: Agreed to support TRIM on protocol level Nov 6 02:33:01 media2 kernel: drbd r0: Peer authenticated using 20 bytes HMAC Nov 6 02:33:01 media2 kernel: drbd r0: conn( WFConnection -> WFReportParams ) Nov 6 02:33:01 media2 kernel: drbd r0: Starting asender thread (from drbd_r_r0 [6367]) Nov 6 02:33:01 media2 kernel: block drbd0: drbd_sync_handshake: Nov 6 02:33:01 media2 kernel: block drbd0: self 59E43E5FD7B26A4E:0000000000000000:1963884285B385E6:1962884285B385E6 bits:0 flags:0 Nov 6 02:33:01 media2 kernel: block drbd0: peer 0C0308FA4F94F811:59E43E5FD7B26A4F:1963884285B385E6:1962884285B385E6 bits:192101 flags:0 Nov 6 02:33:01 media2 kernel: block drbd0: uuid_compare()=-1 by rule 50 Nov 6 02:33:01 media2 kernel: block drbd0: peer( Unknown -> Primary ) conn( WFReportParams -> WFBitMapT ) disk( UpToDate -> Outdated ) pdsk( DUnknown -> UpToDate ) Nov 6 02:33:02 media2 kernel: block drbd0: receive bitmap stats [Bytes(packets)]: plain 0(0), RLE 185(1), total 185; compression: 100.0% Nov 6 02:33:03 media2 kernel: block drbd0: send bitmap stats [Bytes(packets)]: plain 0(0), RLE 185(1), total 185; compression: 100.0% Nov 6 02:33:03 media2 kernel: block drbd0: conn( WFBitMapT -> WFSyncUUID ) Nov 6 02:33:03 media2 kernel: block drbd0: updated sync uuid 59E53E5FD7B26A4E:0000000000000000:1963884285B385E6:1962884285B385E6 Nov 6 02:33:03 media2 kernel: block drbd0: helper command: /sbin/drbdadm before-resync-target minor-0 Nov 6 02:33:03 media2 kernel: block drbd0: helper command: /sbin/drbdadm before-resync-target minor-0 exit code 0 (0x0) Nov 6 02:33:03 media2 kernel: block drbd0: conn( WFSyncUUID -> SyncTarget ) disk( Outdated -> Inconsistent ) Nov 6 02:33:03 media2 kernel: block drbd0: Began resync as SyncTarget (will sync 919244 KB [229811 bits set]). Nov 6 02:33:10 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412364 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:10 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:10 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412366 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:11 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:11 media2 attrd[4940]: notice: attrd_trigger_update: Sending flush op to all hosts for: master-res_drbd_mediafiles (10) Nov 6 02:33:11 media2 attrd[4940]: notice: attrd_perform_update: Sent update 18: master-res_drbd_mediafiles=10 Nov 6 02:33:11 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412368 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:12 media2 corosync[3690]: [TOTEM ] ring 1 active with no faults Nov 6 02:33:12 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412370 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:12 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:12 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412372 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:13 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412374 iface 192.168.101.32 to [2 of 10] Nov 6 02:33:14 media2 corosync[3690]: [TOTEM ] Decrementing problem counter for iface 192.168.101.32 to [1 of 10] Nov 6 02:33:14 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412376 iface 192.168.101.32 to [2 of 10] Nov 6 02:33:15 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412378 iface 192.168.101.32 to [3 of 10] Nov 6 02:33:15 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:15 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412380 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:16 media2 corosync[3690]: [TOTEM ] ring 1 active with no faults Nov 6 02:33:16 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412382 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:16 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:17 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412384 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:17 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:17 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412386 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:18 media2 corosync[3690]: [TOTEM ] ring 1 active with no faults Nov 6 02:33:19 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412388 iface 192.168.100.32 to [1 of 10] Nov 6 02:33:20 media2 corosync[3690]: [TOTEM ] ring 0 active with no faults Nov 6 02:33:35 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:36 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412430 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:36 media2 corosync[3690]: [TOTEM ] Automatically recovered ring 1 Nov 6 02:33:37 media2 corosync[3690]: [TOTEM ] Incrementing problem counter for seqid 412432 iface 192.168.101.32 to [1 of 10] Nov 6 02:33:38 media2 corosync[3690]: [TOTEM ] ring 1 active with no faults

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[PATCH] teamd: do correct l3/l4 tx hashing with vlans
by Antti Tiainen 02 Mar '16

02 Mar '16

bpf_create_code() is not creating correct hashing code with vlan tagged packets. L3/l4 headers are not included to hash even when configured. There were three problems: - VLAN_HEADER_SIZE is wrong. But this doesn't really matter because... - if vlan tagging is offloaded, generated code will find skb->vlan_tci and incorrectly skip non-existent vlan header, failing to find l3 protocol - if vlan tagging is not offloaded, skb->vlan_tci is zeroed in kernel after call to __vlan_put_tag(). Hashing code will not skip VLAN header, failing again to find l3 protocol bpf code must look first for VLAN proto (0x8100) and read the vlan tag from header instead of skb->vlan_tci, and in this case use the correct offset (4) for vlan shift. If VLAN header is not present in packet, skb->vlan_tci must still be checked in case of offloaded vlan header. Signed-off-by: Antti Tiainen <atiainen(a)forcepoint.com> --- teamd/teamd_bpf_chef.c | 41 ++++++++++++++++++++++++++++++++++++----- 1 file changed, 36 insertions(+), 5 deletions(-) diff --git a/teamd/teamd_bpf_chef.c b/teamd/teamd_bpf_chef.c index 15622e8..2482c10 100644 --- a/teamd/teamd_bpf_chef.c +++ b/teamd/teamd_bpf_chef.c @@ -26,6 +26,7 @@ /* protocol offsets */ #define ETH_TYPE_OFFSET 12 +#define VLAN_TAG_OFFSET 14 #define IPV4_FLAGS_OFFSET 20 #define IPV4_PROTO_OFFSET 23 #define IPV4_FRAG_BITS 0x1fff @@ -35,6 +36,7 @@ /* protocol codes */ #define PROTOID_IPV4 0x800 #define PROTOID_IPV6 0x86dd +#define PROTOID_VLAN 0x8100 #define PROTOID_TCP 0x6 #define PROTOID_UDP 0x11 #define PROTOID_SCTP 0x84 @@ -45,7 +47,7 @@ #define FIX_K 0x4 -#define VLAN_HEADER_SIZE 2 +#define VLAN_HEADER_SIZE 4 static int vlan_hdr_shift(unsigned int offset) { return offset + VLAN_HEADER_SIZE; @@ -83,6 +85,9 @@ static int __add_inst(struct sock_fprog *fprog, struct sock_filter *inst) #define bpf_load_word(pos) \ add_inst(fprog, BPF_STMT(BPF_LD + BPF_W + BPF_ABS, pos)) +#define bpf_and_word(w) \ + add_inst(fprog, BPF_STMT(BPF_AND + BPF_ALU, w)) + #define bpf_push_a() \ add_inst(fprog, BPF_STMT(BPF_ST, 0)) @@ -150,6 +155,7 @@ static int __add_inst(struct sock_fprog *fprog, struct sock_filter *inst) enum bpf_labels { LABEL_VLAN_BRANCH, + LABEL_VLAN_TAG_SKIP, LABEL_NOVLAN_IPV6, LABEL_NOVLAN_L4v4_OUT, LABEL_NOVLAN_TRY_UDP4, @@ -472,6 +478,19 @@ err_add_inst: return err; } +static int bpf_vlan_hash_header(struct sock_fprog *fprog) +{ + int err; + + bpf_load_half(VLAN_TAG_OFFSET); + bpf_and_word(0x0fff); + bpf_calc_hash(); + bpf_move_to_x(); + +err_add_inst: + return err; +} + static int __bpf_ipv4_hash(struct sock_fprog *fprog, bool vlan) { int vlan_shift = vlan ? vlan_hdr_shift(0) : 0; @@ -647,13 +666,25 @@ static int bpf_create_code(struct sock_fprog *fprog, struct hash_flags *flags) return 0; } - bpf_vlan_tag_present(); - bpf_cmp(0, LABEL_VLAN_BRANCH, 0, FIX_JF); + bpf_load_half(ETH_TYPE_OFFSET); + bpf_cmp(LABEL_VLAN_BRANCH, 0, PROTOID_VLAN, FIX_JT); + + /* no vlan branch, but might be offloaded */ + if (hash_test_and_set_flag(flags, HASH_VLAN)) { + bpf_vlan_tag_present(); + bpf_cmp(LABEL_VLAN_TAG_SKIP, 0, 0, FIX_JT); + bpf_vlan_hash(fprog); + push_label(fprog, LABEL_VLAN_TAG_SKIP); + } + if (!hash_is_novlan_l3l4_enabled(flags)) bpf_hash_return(); + /* vlan hashing overwrote this */ + if (hash_is_enabled(flags, HASH_VLAN)) + bpf_load_half(ETH_TYPE_OFFSET); + /* no vlan branch */ - bpf_load_half(ETH_TYPE_OFFSET); bpf_cmp(0, LABEL_NOVLAN_IPV6, PROTOID_IPV4, FIX_JF); /* no vlan ipv4 branch */ @@ -747,7 +778,7 @@ static int bpf_create_code(struct sock_fprog *fprog, struct hash_flags *flags) /* vlan branch */ push_label(fprog, LABEL_VLAN_BRANCH); if (hash_test_and_set_flag(flags, HASH_VLAN)) - bpf_vlan_hash(fprog); + bpf_vlan_hash_header(fprog); if (hash_is_complete(flags)) { bpf_hash_return(); -- 2.7.1

3 2

tx hashing is not working correctly with vlans
by Antti Tiainen 26 Feb '16

26 Feb '16

Hello. I noticed extremely bad tx balancing in some cases with lacp/loadbalance runner when vlans are in use. Only ethernet header (and vlan id if configured) is used for tx hash, l3 is ignored. I saw few problems in bpf hashing code generator. First, the vlan header size if wrong so vlan_hdr_shift() will give wrong offsets. But that doesn't actually matter since the parser fails in two possible cases: - vlan tagging is offloaded. Parser will try to skip vlan header based on skb->vlan_tci, but header is not yet present in packet. It will not find ipv4/ipv6 protocol for l3. - vlan tagging is not offloaded. Kernel will set vlan_tci to 0 after call to __vlan_put_tag(). Parser will not try to skip vlan header and will stop to ethernet header protocol 0x8100. Am I missing something in here, or has this been working with some old kernel? I have fix for this, can prepare patch. -antti

2 1

[PATCH] libteam: Fix broken links
by Ido Schimmel 22 Feb '16

22 Feb '16

Signed-off-by: Ido Schimmel <idosch(a)mellanox.com> --- README | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/README b/README index 4043d3a..9efd9a5 100644 --- a/README +++ b/README @@ -19,9 +19,9 @@ One thing to note is that Team driver project does try to provide the similar fu * Project Home: http://www.libteam.org/ * Git Source Tree: https://github.com/jpirko/libteam/ -* Wiki: https://fedorahosted.org/libteam/ -* Tutorial: https://fedorahosted.org/libteam/wiki/Tutorial -* Documentation: https://fedorahosted.org/libteam/wiki/InfrastructureSpecification +* Wiki: https://github.com/jpirko/libteam/wiki +* Tutorial: https://github.com/jpirko/libteam/wiki/Tutorial +* Documentation: https://github.com/jpirko/libteam/wiki/Infrastructure-Specification ## License -- 2.4.10

2 1

[jpirko/libteam] e81fa0: libteam: Fix broken links
by GitHub 22 Feb '16

22 Feb '16

Branch: refs/heads/master Home: https://github.com/jpirko/libteam Commit: e81fa0cae0bbcfa9bb06ba7e1dc2a814cdb10f5d https://github.com/jpirko/libteam/commit/e81fa0cae0bbcfa9bb06ba7e1dc2a814cd… Author: Ido Schimmel <idosch(a)mellanox.com> Date: 2016-02-22 (Mon, 22 Feb 2016) Changed paths: M README Log Message: ----------- libteam: Fix broken links Signed-off-by: Ido Schimmel <idosch(a)mellanox.com> Signed-off-by: Jiri Pirko <jiri(a)mellanox.com>

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by Interfax Service 14 Feb '16

14 Feb '16

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by Interfax Service 12 Feb '16

12 Feb '16

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libteam February 2016