Re: Ceph OSD daemon causes network card issues

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Sure, also attached.

cephuser@cephnode6:~$ ethtool -S enp3s0f0
NIC statistics:
     rx_packets: 3103528
     tx_packets: 20954382
     rx_bytes: 1385006975
     tx_bytes: 30063866207
     rx_broadcast: 8
     tx_broadcast: 2
     rx_multicast: 14098
     tx_multicast: 476
     multicast: 14098
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 1563318
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 1385006975
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 292684
     tx_queue_0_bytes: 216244150
     tx_queue_0_restart: 0
     tx_queue_1_packets: 6489256
     tx_queue_1_bytes: 9529075383
     tx_queue_1_restart: 0
     tx_queue_2_packets: 325263
     tx_queue_2_bytes: 330734519
     tx_queue_2_restart: 0
     tx_queue_3_packets: 3074167
     tx_queue_3_bytes: 4363429551
     tx_queue_3_restart: 0
     tx_queue_4_packets: 319961
     tx_queue_4_bytes: 242633539
     tx_queue_4_restart: 0
     tx_queue_5_packets: 252717
     tx_queue_5_bytes: 191717682
     tx_queue_5_restart: 0
     tx_queue_6_packets: 3402851
     tx_queue_6_bytes: 4966526009
     tx_queue_6_restart: 0
     tx_queue_7_packets: 6797483
     tx_queue_7_bytes: 10139687288
     tx_queue_7_restart: 0
     rx_queue_0_packets: 215189
     rx_queue_0_bytes: 153838496
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 528614
     rx_queue_1_bytes: 192679289
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 186822
     rx_queue_2_bytes: 141708803
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 173099
     rx_queue_3_bytes: 131321568
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 147423
     rx_queue_4_bytes: 111807376
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 133384
     rx_queue_5_bytes: 110116165
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 1598989
     rx_queue_6_bytes: 440079884
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 120008
     rx_queue_7_bytes: 91041282
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -S enp3s0f1
NIC statistics:
     rx_packets: 2417818
     tx_packets: 1605247
     rx_bytes: 1790337041
     tx_bytes: 1268847302
     rx_broadcast: 80
     tx_broadcast: 11
     rx_multicast: 14235
     tx_multicast: 463
     multicast: 14235
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 511041
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 1790337041
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 187486
     tx_queue_0_bytes: 158004014
     tx_queue_0_restart: 0
     tx_queue_1_packets: 292695
     tx_queue_1_bytes: 216338071
     tx_queue_1_restart: 0
     tx_queue_2_packets: 230556
     tx_queue_2_bytes: 187701434
     tx_queue_2_restart: 0
     tx_queue_3_packets: 175072
     tx_queue_3_bytes: 132739732
     tx_queue_3_restart: 0
     tx_queue_4_packets: 201110
     tx_queue_4_bytes: 169995905
     tx_queue_4_restart: 0
     tx_queue_5_packets: 164302
     tx_queue_5_bytes: 122529296
     tx_queue_5_restart: 0
     tx_queue_6_packets: 176127
     tx_queue_6_bytes: 142367535
     tx_queue_6_restart: 0
     tx_queue_7_packets: 177899
     tx_queue_7_bytes: 132745095
     tx_queue_7_restart: 0
     rx_queue_0_packets: 244981
     rx_queue_0_bytes: 175468464
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 226753
     rx_queue_1_bytes: 164297931
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 309263
     rx_queue_2_bytes: 224912817
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 344819
     rx_queue_3_bytes: 256411809
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 413956
     rx_queue_4_bytes: 306366538
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 222891
     rx_queue_5_bytes: 163512696
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 309235
     rx_queue_6_bytes: 234497920
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 345920
     rx_queue_7_bytes: 255197594
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -S enp4s0f0
NIC statistics:
     rx_packets: 263095022
     tx_packets: 165984477
     rx_bytes: 358188428243
     tx_bytes: 224059860328
     rx_broadcast: 0
     tx_broadcast: 0
     rx_multicast: 14260
     tx_multicast: 475
     multicast: 14260
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 10618678
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 358188428243
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 24523878
     tx_queue_0_bytes: 35555825370
     tx_queue_0_restart: 0
     tx_queue_1_packets: 22792805
     tx_queue_1_bytes: 33160725172
     tx_queue_1_restart: 0
     tx_queue_2_packets: 32186938
     tx_queue_2_bytes: 42938373893
     tx_queue_2_restart: 0
     tx_queue_3_packets: 27532192
     tx_queue_3_bytes: 35219225817
     tx_queue_3_restart: 0
     tx_queue_4_packets: 12999613
     tx_queue_4_bytes: 16197252415
     tx_queue_4_restart: 0
     tx_queue_5_packets: 20425057
     tx_queue_5_bytes: 25328350119
     tx_queue_5_restart: 0
     tx_queue_6_packets: 13115439
     tx_queue_6_bytes: 17344340207
     tx_queue_6_restart: 0
     tx_queue_7_packets: 12408555
     tx_queue_7_bytes: 17651829427
     tx_queue_7_restart: 0
     rx_queue_0_packets: 28425656
     rx_queue_0_bytes: 37636565075
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 8984649
     rx_queue_1_bytes: 2071222507
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 36295986
     rx_queue_2_bytes: 54200457391
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 23349464
     rx_queue_3_bytes: 33468571056
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 5805069
     rx_queue_4_bytes: 715544992
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 47433585
     rx_queue_5_bytes: 67747439829
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 40708301
     rx_queue_6_bytes: 53328721761
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 72092312
     rx_queue_7_bytes: 107967525544
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -S enp4s0f1
NIC statistics:
     rx_packets: 100608455
     tx_packets: 166526987
     rx_bytes: 140666343603
     tx_bytes: 222986388680
     rx_broadcast: 91
     tx_broadcast: 8
     rx_multicast: 14286
     tx_multicast: 469
     multicast: 14286
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 9252151
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 140666343603
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 9639934
     tx_queue_0_bytes: 13277298005
     tx_queue_0_restart: 0
     tx_queue_1_packets: 21458007
     tx_queue_1_bytes: 28789498862
     tx_queue_1_restart: 0
     tx_queue_2_packets: 22103147
     tx_queue_2_bytes: 28134369759
     tx_queue_2_restart: 0
     tx_queue_3_packets: 26218962
     tx_queue_3_bytes: 32565488967
     tx_queue_3_restart: 0
     tx_queue_4_packets: 26578778
     tx_queue_4_bytes: 39751527579
     tx_queue_4_restart: 0
     tx_queue_5_packets: 24551167
     tx_queue_5_bytes: 36050216125
     tx_queue_5_restart: 0
     tx_queue_6_packets: 18808095
     tx_queue_6_bytes: 27305113278
     tx_queue_6_restart: 0
     tx_queue_7_packets: 17168897
     tx_queue_7_bytes: 16446768013
     tx_queue_7_restart: 0
     rx_queue_0_packets: 25074819
     rx_queue_0_bytes: 37499171327
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 2573243
     rx_queue_1_bytes: 780414215
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 35512962
     rx_queue_2_bytes: 53302135608
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 3976283
     rx_queue_3_bytes: 679395976
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 24670023
     rx_queue_4_bytes: 36883071881
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 3467062
     rx_queue_5_bytes: 4846515985
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 4683116
     rx_queue_6_bytes: 5428970649
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 650947
     rx_queue_7_bytes: 844234142
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$





cephuser@cephnode6:~$ ethtool -i enp3s0f0
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:03:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -i enp3s0f1
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:03:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -i enp4s0f0
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -i enp4s0f1
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:04:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$


cephuser@cephnode6:~$ dmesg -TL | grep igb
[Thu Jul 18 10:36:09 2019] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k
[Thu Jul 18 10:36:09 2019] igb: Copyright (c) 2007-2014 Intel Corporation.
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: added PHC on eth0
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: eth0: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:20
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: eth0: PBA No: Unknown
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: added PHC on eth1
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: eth1: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:21
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: eth1: PBA No: Unknown
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: added PHC on eth2
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: eth2: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:22
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: eth2: PBA No: Unknown
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: added PHC on eth3
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: eth3: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:23
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: eth3: PBA No: Unknown
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1 enp4s0f1: renamed from eth3
[Thu Jul 18 10:36:11 2019] igb 0000:03:00.0 enp3s0f0: renamed from eth0
[Thu Jul 18 10:36:11 2019] igb 0000:03:00.1 enp3s0f1: renamed from eth1
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0 enp4s0f0: renamed from eth2
[Thu Jul 18 10:36:18 2019] igb 0000:04:00.1 enp4s0f1: igb: enp4s0f1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[Thu Jul 18 10:36:18 2019] igb 0000:03:00.0 enp3s0f0: igb: enp3s0f0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[Thu Jul 18 10:36:19 2019] igb 0000:04:00.0 enp4s0f0: igb: enp4s0f0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[Thu Jul 18 10:36:19 2019] igb 0000:03:00.1 enp3s0f1: igb: enp3s0f1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
cephuser@cephnode6:~$

cephuser@cephnode6:~$ uptime
 14:39:44 up  4:03,  1 user,  load average: 1.84, 1.59, 1.57
cephuser@cephnode6:~$


Kind regards
Geoffrey Rhodes


On Thu, 18 Jul 2019 at 14:02, Konstantin Shalygin <k0ste@xxxxxxxx> wrote:

I've been having an issue since upgrading my cluster to Mimic 6 months ago
(previously installed with Luminous 12.2.1).
All nodes that have the same PCIe network card seem to loose network
connectivity randomly. (frequency ranges from a few days to weeks per host
node)
The affected nodes only have the Intel 82576 LAN Card in common, different
motherboards, installed drives, RAM and even PSUs.
Nodes that have the Intel I350 cards are not affected by the Mimic upgrade.
Each host node has recommended RAM installed and has between 4 and 6 OSDs /
sata hard drives installed.
The cluster operated for over a year (Luminous) without a single issue,
only after the Mimic upgrade did the issues begin with these nodes.
The cluster is only used for CephFS (file storage, low intensity usage) and
makes use of erasure data pool (K=4, M=2).

I've tested many things, different kernel versions, different Ubuntu LTS
releases, re-installation and even CENTOS 7, different releases of Mimic,
different igb drivers.
If I stop the ceph-osd daemons the issue does not occur.  If I swap out the
Intel 82576 card with the Intel I350 the issue is resolved.
I haven't any more ideas other than replacing the cards but I feel the
issue is linked to the ceph-osd daemon and a change in the Mimic release.
Below are the various software versions and drivers I've tried and a log
extract from a node that lost network connectivity. - Any help or
suggestions would be greatly appreciated.

*OS:*                          Ubuntu 16.04 / 18.04 and recently CENTOS 7
*Ceph Version:*        Mimic (currently 13.2.6)
*Network card:*        4-PORT 1GB INTEL 82576 LAN CARD (AOC-SG-I4)
*Driver:              *       igb
*Driver Versions:*     5.3.0-k / 5.3.5.22s / 5.4.0-k
*Network Config:*     2 x bonded (LACP) 1GB nic for public net,   2 x
bonded (LACP) 1GB nic for private net
*Log errors:*
Jun 27 12:10:28 cephnode5 kernel: [497346.638608] igb 0000:03:00.0
enp3s0f0: PCIe link lost, device now detached
Jun 27 12:10:28 cephnode5 kernel: [497346.686752] igb 0000:04:00.1
enp4s0f1: PCIe link lost, device now detached
Jun 27 12:10:29 cephnode5 kernel: [497347.550473] igb 0000:03:00.1
enp3s0f1: PCIe link lost, device now detached
Jun 27 12:10:29 cephnode5 kernel: [497347.646785] igb 0000:04:00.0
enp4s0f0: PCIe link lost, device now detached
Jun 27 12:10:43 cephnode5 ceph-osd[2575]: 2019-06-27 12:10:43.793
7f73ca637700 -1 osd.15 28497 heartbeat_check: no reply from 10.100.4.1:6809
osd.16 since back 2019-06
-27 12:10:27.438961 front 2019-06-27 12:10:23.338012 (cutoff 2019-06-27
12:10:23.796726)
Jun 27 12:10:43 cephnode5 ceph-osd[2575]: 2019-06-27 12:10:43.793
7f73ca637700 -1 osd.15 28497 heartbeat_check: no reply from 10.100.6.1:6804
osd.20 since back 2019-06
-27 12:10:27.438961 front 2019-06-27 12:10:23.338012 (cutoff 2019-06-27
12:10:23.796726)
Jun 27 12:10:43 cephnode5 ceph-osd[2575]: 2019-06-27 12:10:43.793
7f73ca637700 -1 osd.15 28497 heartbeat_check: no reply from 10.100.7.1:6803
osd.25 since back 2019-06
-27 12:10:23.338012 front 2019-06-27 12:10:23.338012 (cutoff 2019-06-27
12:10:23.796726)
Jun 27 12:10:43 cephnode5 ceph-osd[2575]: 2019-06-27 12:10:43.793
7f73ca637700 -1 osd.15 28497 heartbeat_check: no reply from 10.100.8.1:6803
osd.30 since back 2019-06
-27 12:10:27.438961 front 2019-06-27 12:10:23.338012 (cutoff 2019-06-27
12:10:23.796726)
Jun 27 12:10:43 cephnode5 ceph-osd[2575]: 2019-06-27 12:10:43.793
7f73ca637700 -1 osd.15 28497 heartbeat_check: no reply from 10.100.9.1:6808
osd.43 since back 2019-06
-27 12:10:23.338012 front 2019-06-27 12:10:23.338012 (cutoff 2019-06-27
12:10:23.796726)

Paste your `ethtool -S <interface>`, `ethtool -i <interface>` and `dmesg -TL | grep igb`.



k

cephuser@cephnode6:~$ ethtool -S enp3s0f0
NIC statistics:
     rx_packets: 3103528
     tx_packets: 20954382
     rx_bytes: 1385006975
     tx_bytes: 30063866207
     rx_broadcast: 8
     tx_broadcast: 2
     rx_multicast: 14098
     tx_multicast: 476
     multicast: 14098
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 1563318
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 1385006975
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 292684
     tx_queue_0_bytes: 216244150
     tx_queue_0_restart: 0
     tx_queue_1_packets: 6489256
     tx_queue_1_bytes: 9529075383
     tx_queue_1_restart: 0
     tx_queue_2_packets: 325263
     tx_queue_2_bytes: 330734519
     tx_queue_2_restart: 0
     tx_queue_3_packets: 3074167
     tx_queue_3_bytes: 4363429551
     tx_queue_3_restart: 0
     tx_queue_4_packets: 319961
     tx_queue_4_bytes: 242633539
     tx_queue_4_restart: 0
     tx_queue_5_packets: 252717
     tx_queue_5_bytes: 191717682
     tx_queue_5_restart: 0
     tx_queue_6_packets: 3402851
     tx_queue_6_bytes: 4966526009
     tx_queue_6_restart: 0
     tx_queue_7_packets: 6797483
     tx_queue_7_bytes: 10139687288
     tx_queue_7_restart: 0
     rx_queue_0_packets: 215189
     rx_queue_0_bytes: 153838496
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 528614
     rx_queue_1_bytes: 192679289
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 186822
     rx_queue_2_bytes: 141708803
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 173099
     rx_queue_3_bytes: 131321568
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 147423
     rx_queue_4_bytes: 111807376
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 133384
     rx_queue_5_bytes: 110116165
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 1598989
     rx_queue_6_bytes: 440079884
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 120008
     rx_queue_7_bytes: 91041282
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -S enp3s0f1
NIC statistics:
     rx_packets: 2417818
     tx_packets: 1605247
     rx_bytes: 1790337041
     tx_bytes: 1268847302
     rx_broadcast: 80
     tx_broadcast: 11
     rx_multicast: 14235
     tx_multicast: 463
     multicast: 14235
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 511041
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 1790337041
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 187486
     tx_queue_0_bytes: 158004014
     tx_queue_0_restart: 0
     tx_queue_1_packets: 292695
     tx_queue_1_bytes: 216338071
     tx_queue_1_restart: 0
     tx_queue_2_packets: 230556
     tx_queue_2_bytes: 187701434
     tx_queue_2_restart: 0
     tx_queue_3_packets: 175072
     tx_queue_3_bytes: 132739732
     tx_queue_3_restart: 0
     tx_queue_4_packets: 201110
     tx_queue_4_bytes: 169995905
     tx_queue_4_restart: 0
     tx_queue_5_packets: 164302
     tx_queue_5_bytes: 122529296
     tx_queue_5_restart: 0
     tx_queue_6_packets: 176127
     tx_queue_6_bytes: 142367535
     tx_queue_6_restart: 0
     tx_queue_7_packets: 177899
     tx_queue_7_bytes: 132745095
     tx_queue_7_restart: 0
     rx_queue_0_packets: 244981
     rx_queue_0_bytes: 175468464
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 226753
     rx_queue_1_bytes: 164297931
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 309263
     rx_queue_2_bytes: 224912817
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 344819
     rx_queue_3_bytes: 256411809
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 413956
     rx_queue_4_bytes: 306366538
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 222891
     rx_queue_5_bytes: 163512696
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 309235
     rx_queue_6_bytes: 234497920
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 345920
     rx_queue_7_bytes: 255197594
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -S enp4s0f0
NIC statistics:
     rx_packets: 263095022
     tx_packets: 165984477
     rx_bytes: 358188428243
     tx_bytes: 224059860328
     rx_broadcast: 0
     tx_broadcast: 0
     rx_multicast: 14260
     tx_multicast: 475
     multicast: 14260
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 10618678
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 358188428243
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 24523878
     tx_queue_0_bytes: 35555825370
     tx_queue_0_restart: 0
     tx_queue_1_packets: 22792805
     tx_queue_1_bytes: 33160725172
     tx_queue_1_restart: 0
     tx_queue_2_packets: 32186938
     tx_queue_2_bytes: 42938373893
     tx_queue_2_restart: 0
     tx_queue_3_packets: 27532192
     tx_queue_3_bytes: 35219225817
     tx_queue_3_restart: 0
     tx_queue_4_packets: 12999613
     tx_queue_4_bytes: 16197252415
     tx_queue_4_restart: 0
     tx_queue_5_packets: 20425057
     tx_queue_5_bytes: 25328350119
     tx_queue_5_restart: 0
     tx_queue_6_packets: 13115439
     tx_queue_6_bytes: 17344340207
     tx_queue_6_restart: 0
     tx_queue_7_packets: 12408555
     tx_queue_7_bytes: 17651829427
     tx_queue_7_restart: 0
     rx_queue_0_packets: 28425656
     rx_queue_0_bytes: 37636565075
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 8984649
     rx_queue_1_bytes: 2071222507
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 36295986
     rx_queue_2_bytes: 54200457391
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 23349464
     rx_queue_3_bytes: 33468571056
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 5805069
     rx_queue_4_bytes: 715544992
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 47433585
     rx_queue_5_bytes: 67747439829
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 40708301
     rx_queue_6_bytes: 53328721761
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 72092312
     rx_queue_7_bytes: 107967525544
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -S enp4s0f1
NIC statistics:
     rx_packets: 100608455
     tx_packets: 166526987
     rx_bytes: 140666343603
     tx_bytes: 222986388680
     rx_broadcast: 91
     tx_broadcast: 8
     rx_multicast: 14286
     tx_multicast: 469
     multicast: 14286
     collisions: 0
     rx_crc_errors: 0
     rx_no_buffer_count: 0
     rx_missed_errors: 0
     tx_aborted_errors: 0
     tx_carrier_errors: 0
     tx_window_errors: 0
     tx_abort_late_coll: 0
     tx_deferred_ok: 0
     tx_single_coll_ok: 0
     tx_multi_coll_ok: 0
     tx_timeout_count: 0
     rx_long_length_errors: 0
     rx_short_length_errors: 0
     rx_align_errors: 0
     tx_tcp_seg_good: 9252151
     tx_tcp_seg_failed: 0
     rx_flow_control_xon: 0
     rx_flow_control_xoff: 0
     tx_flow_control_xon: 0
     tx_flow_control_xoff: 0
     rx_long_byte_count: 140666343603
     tx_dma_out_of_sync: 0
     tx_smbus: 0
     rx_smbus: 0
     dropped_smbus: 0
     os2bmc_rx_by_bmc: 0
     os2bmc_tx_by_bmc: 0
     os2bmc_tx_by_host: 0
     os2bmc_rx_by_host: 0
     tx_hwtstamp_timeouts: 0
     tx_hwtstamp_skipped: 0
     rx_hwtstamp_cleared: 0
     rx_errors: 0
     tx_errors: 0
     tx_dropped: 0
     rx_length_errors: 0
     rx_over_errors: 0
     rx_frame_errors: 0
     rx_fifo_errors: 0
     tx_fifo_errors: 0
     tx_heartbeat_errors: 0
     tx_queue_0_packets: 9639934
     tx_queue_0_bytes: 13277298005
     tx_queue_0_restart: 0
     tx_queue_1_packets: 21458007
     tx_queue_1_bytes: 28789498862
     tx_queue_1_restart: 0
     tx_queue_2_packets: 22103147
     tx_queue_2_bytes: 28134369759
     tx_queue_2_restart: 0
     tx_queue_3_packets: 26218962
     tx_queue_3_bytes: 32565488967
     tx_queue_3_restart: 0
     tx_queue_4_packets: 26578778
     tx_queue_4_bytes: 39751527579
     tx_queue_4_restart: 0
     tx_queue_5_packets: 24551167
     tx_queue_5_bytes: 36050216125
     tx_queue_5_restart: 0
     tx_queue_6_packets: 18808095
     tx_queue_6_bytes: 27305113278
     tx_queue_6_restart: 0
     tx_queue_7_packets: 17168897
     tx_queue_7_bytes: 16446768013
     tx_queue_7_restart: 0
     rx_queue_0_packets: 25074819
     rx_queue_0_bytes: 37499171327
     rx_queue_0_drops: 0
     rx_queue_0_csum_err: 0
     rx_queue_0_alloc_failed: 0
     rx_queue_1_packets: 2573243
     rx_queue_1_bytes: 780414215
     rx_queue_1_drops: 0
     rx_queue_1_csum_err: 0
     rx_queue_1_alloc_failed: 0
     rx_queue_2_packets: 35512962
     rx_queue_2_bytes: 53302135608
     rx_queue_2_drops: 0
     rx_queue_2_csum_err: 0
     rx_queue_2_alloc_failed: 0
     rx_queue_3_packets: 3976283
     rx_queue_3_bytes: 679395976
     rx_queue_3_drops: 0
     rx_queue_3_csum_err: 0
     rx_queue_3_alloc_failed: 0
     rx_queue_4_packets: 24670023
     rx_queue_4_bytes: 36883071881
     rx_queue_4_drops: 0
     rx_queue_4_csum_err: 0
     rx_queue_4_alloc_failed: 0
     rx_queue_5_packets: 3467062
     rx_queue_5_bytes: 4846515985
     rx_queue_5_drops: 0
     rx_queue_5_csum_err: 0
     rx_queue_5_alloc_failed: 0
     rx_queue_6_packets: 4683116
     rx_queue_6_bytes: 5428970649
     rx_queue_6_drops: 0
     rx_queue_6_csum_err: 0
     rx_queue_6_alloc_failed: 0
     rx_queue_7_packets: 650947
     rx_queue_7_bytes: 844234142
     rx_queue_7_drops: 0
     rx_queue_7_csum_err: 0
     rx_queue_7_alloc_failed: 0
cephuser@cephnode6:~$





cephuser@cephnode6:~$ ethtool -i enp3s0f0
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:03:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -i enp3s0f1
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:03:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -i enp4s0f0
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$
cephuser@cephnode6:~$ ethtool -i enp4s0f1
driver: igb
version: 5.4.0-k
firmware-version: 1.0.1
expansion-rom-version:
bus-info: 0000:04:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
cephuser@cephnode6:~$


cephuser@cephnode6:~$ dmesg -TL | grep igb
[Thu Jul 18 10:36:09 2019] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k
[Thu Jul 18 10:36:09 2019] igb: Copyright (c) 2007-2014 Intel Corporation.
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: added PHC on eth0
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: eth0: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:20
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: eth0: PBA No: Unknown
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.0: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: added PHC on eth1
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: eth1: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:21
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: eth1: PBA No: Unknown
[Thu Jul 18 10:36:10 2019] igb 0000:03:00.1: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: added PHC on eth2
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: eth2: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:22
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: eth2: PBA No: Unknown
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: added PHC on eth3
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: Intel(R) Gigabit Ethernet Network Connection
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: eth3: (PCIe:2.5Gb/s:Width x4) 00:25:90:eb:1c:23
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: eth3: PBA No: Unknown
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.1 enp4s0f1: renamed from eth3
[Thu Jul 18 10:36:11 2019] igb 0000:03:00.0 enp3s0f0: renamed from eth0
[Thu Jul 18 10:36:11 2019] igb 0000:03:00.1 enp3s0f1: renamed from eth1
[Thu Jul 18 10:36:11 2019] igb 0000:04:00.0 enp4s0f0: renamed from eth2
[Thu Jul 18 10:36:18 2019] igb 0000:04:00.1 enp4s0f1: igb: enp4s0f1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[Thu Jul 18 10:36:18 2019] igb 0000:03:00.0 enp3s0f0: igb: enp3s0f0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[Thu Jul 18 10:36:19 2019] igb 0000:04:00.0 enp4s0f0: igb: enp4s0f0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
[Thu Jul 18 10:36:19 2019] igb 0000:03:00.1 enp3s0f1: igb: enp3s0f1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
cephuser@cephnode6:~$

cephuser@cephnode6:~$ uptime
 14:39:44 up  4:03,  1 user,  load average: 1.84, 1.59, 1.57
cephuser@cephnode6:~$

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