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Destructive Chaos Testing: remote forwarder healing test #1695

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Mixaster995 opened this issue Jun 8, 2021 · 2 comments
Closed

Destructive Chaos Testing: remote forwarder healing test #1695

Mixaster995 opened this issue Jun 8, 2021 · 2 comments
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ASAP The issue should be completed as soon as possible bug Something isn't working Planning Issue related to SOW
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Mixaster995 commented Jun 8, 2021 •
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Issue

In remote forwarder healing scenario, when we kill remote forwarder and then, after it's restored, trying to ping from nsc to nse again it is not working.

part of #1174
@Mixaster995 Mixaster995 added this to Community issues in Issue/PR tracking Jun 8, 2021
@Mixaster995 Mixaster995 moved this from Community issues to To do in Issue/PR tracking Jun 8, 2021
@Mixaster995 Mixaster995 moved this from To do to In progress in Issue/PR tracking Jun 8, 2021
@Mixaster995 Mixaster995 self-assigned this Jun 8, 2021
@denis-tingaikin denis-tingaikin added ASAP The issue should be completed as soon as possible bug Something isn't working Planning Issue related to SOW labels Jun 8, 2021
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  • Logs from all pods after first incorrect ping: logs.zip

  • Additional info from forwarders

  1. Local:
# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
3: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
    link/tunnel6 :: brd ::
4: veth8ae528ad@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 7e:e9:b8:4b:c8:01 brd ff:ff:ff:ff:ff:ff link-netnsid 1
    inet 10.244.1.1/32 scope global veth8ae528ad
       valid_lft forever preferred_lft forever
5: veth1efc7c41@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 0a:64:f9:6c:7b:3b brd ff:ff:ff:ff:ff:ff link-netnsid 2
    inet 10.244.1.1/32 scope global veth1efc7c41
       valid_lft forever preferred_lft forever
6: veth5005d5fe@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether e2:bc:88:cb:3a:0e brd ff:ff:ff:ff:ff:ff link-netnsid 3
    inet 10.244.1.1/32 scope global veth5005d5fe
       valid_lft forever preferred_lft forever
7: vetha3e5b348@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 52:f7:d5:61:e5:58 brd ff:ff:ff:ff:ff:ff link-netnsid 4
    inet 10.244.1.1/32 scope global vetha3e5b348
       valid_lft forever preferred_lft forever
8: veth6c20b8e1@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether fa:73:e5:33:a8:a1 brd ff:ff:ff:ff:ff:ff link-netnsid 5
    inet 10.244.1.1/32 scope global veth6c20b8e1
       valid_lft forever preferred_lft forever
90: eth0@if91: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:ac:1d:00:04 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 172.29.0.4/16 brd 172.29.255.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fc00:f853:ccd:e793::4/64 scope global nodad 
       valid_lft forever preferred_lft forever
    inet6 fe80::42:acff:fe1d:4/64 scope link 
       valid_lft forever preferred_lft forever

# ip route 
default via 172.29.0.1 dev eth0 
10.244.0.0/24 via 172.29.0.2 dev eth0 
10.244.1.2 dev veth8ae528ad scope host 
10.244.1.3 dev veth1efc7c41 scope host 
10.244.1.4 dev veth5005d5fe scope host 
10.244.1.5 dev vetha3e5b348 scope host 
10.244.1.6 dev veth6c20b8e1 scope host 
10.244.2.0/24 via 172.29.0.3 dev eth0 
172.29.0.0/16 dev eth0 proto kernel scope link src 172.29.0.4

# ip link 
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
3: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/tunnel6 :: brd ::
4: veth8ae528ad@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 7e:e9:b8:4b:c8:01 brd ff:ff:ff:ff:ff:ff link-netnsid 1
5: veth1efc7c41@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 0a:64:f9:6c:7b:3b brd ff:ff:ff:ff:ff:ff link-netnsid 2
6: veth5005d5fe@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether e2:bc:88:cb:3a:0e brd ff:ff:ff:ff:ff:ff link-netnsid 3
7: vetha3e5b348@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 52:f7:d5:61:e5:58 brd ff:ff:ff:ff:ff:ff link-netnsid 4
8: veth6c20b8e1@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether fa:73:e5:33:a8:a1 brd ff:ff:ff:ff:ff:ff link-netnsid 5
90: eth0@if91: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 02:42:ac:1d:00:04 brd ff:ff:ff:ff:ff:ff link-netnsid 0

# vppctl show int addr
host-eth0 (up):
  L3 172.29.0.4/16
local0 (dn):

# vppctl show hardware   
              Name                Idx   Link  Hardware
host-eth0                          1     up   host-eth0
  Link speed: unknown
  Ethernet address 02:42:ac:1d:00:04
  Linux PACKET socket interface
local0                             0    down  local0
  Link speed: unknown
  local

# vppctl show ip neighbor
    Time                       IP                    Flags      Ethernet              Interface       
      1.2591               172.29.0.1                  S    02:42:a0:b4:47:d9 host-eth0
      1.2599               172.29.0.2                  S    02:42:ac:1d:00:02 host-eth0
      1.2596               172.29.0.3                  S    02:42:ac:1d:00:03 host-eth0

# ip neighbor | grep 172.29.0.1    
172.29.0.1 dev eth0 lladdr 02:42:a0:b4:47:d9 STALE
# ip neighbor | grep 172.29.0.2 
172.29.0.2 dev eth0 lladdr 02:42:ac:1d:00:02 REACHABLE
# ip neighbor | grep 172.29.0.3 
172.29.0.3 dev eth0 lladdr 02:42:ac:1d:00:03 REACHABLE

# vppctl show ip fib
ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto ] epoch:0 flags:none locks:[adjacency:1, default-route:1, nat-hi:2, ]
0.0.0.0/0
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:1 buckets:1 uRPF:15 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.1 host-eth0: mtu:1500 next:4 0242a0b447d90242ac1d00040800
0.0.0.0/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:2 buckets:1 uRPF:1 to:[0:0]]
    [0] [@0]: dpo-drop ip4
10.244.0.0/24
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:16 buckets:1 uRPF:17 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.2 host-eth0: mtu:1500 next:4 0242ac1d00020242ac1d00040800
10.244.2.0/24
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:17 buckets:1 uRPF:18 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.3 host-eth0: mtu:1500 next:4 0242ac1d00030242ac1d00040800
172.29.0.0/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:13 buckets:1 uRPF:12 to:[0:0]]
    [0] [@0]: dpo-drop ip4
172.29.0.1/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:12 buckets:1 uRPF:7 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.1 host-eth0: mtu:1500 next:4 0242a0b447d90242ac1d00040800
172.29.0.2/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:10 buckets:1 uRPF:9 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.2 host-eth0: mtu:1500 next:4 0242ac1d00020242ac1d00040800
172.29.0.3/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:11 buckets:1 uRPF:8 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.3 host-eth0: mtu:1500 next:4 0242ac1d00030242ac1d00040800
172.29.0.0/16
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:9 buckets:1 uRPF:11 to:[0:0]]
    [0] [@4]: ipv4-glean: host-eth0: mtu:1500 next:1 ffffffffffff0242ac1d00040806
172.29.0.4/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:15 buckets:1 uRPF:16 to:[49:5834]]
    [0] [@2]: dpo-receive: 172.29.0.4 on host-eth0
172.29.255.255/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:14 buckets:1 uRPF:14 to:[0:0]]
    [0] [@0]: dpo-drop ip4
224.0.0.0/4
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:4 buckets:1 uRPF:3 to:[0:0]]
    [0] [@0]: dpo-drop ip4
240.0.0.0/4
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:3 buckets:1 uRPF:2 to:[0:0]]
    [0] [@0]: dpo-drop ip4
255.255.255.255/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:5 buckets:1 uRPF:4 to:[0:0]]
    [0] [@0]: dpo-drop ip4
  1. Remote:
# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
3: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
    link/tunnel6 :: brd ::
4: veth200f2ef7@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether d2:96:2c:7d:68:d2 brd ff:ff:ff:ff:ff:ff link-netnsid 1
    inet 10.244.2.1/32 scope global veth200f2ef7
       valid_lft forever preferred_lft forever
5: vethe4a1f4cc@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 7a:58:0f:78:85:e8 brd ff:ff:ff:ff:ff:ff link-netnsid 2
    inet 10.244.2.1/32 scope global vethe4a1f4cc
       valid_lft forever preferred_lft forever
6: vethf9b67f5b@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 32:0d:a0:38:61:47 brd ff:ff:ff:ff:ff:ff link-netnsid 3
    inet 10.244.2.1/32 scope global vethf9b67f5b
       valid_lft forever preferred_lft forever
7: veth80b04848@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether f2:b2:b0:ec:fd:6c brd ff:ff:ff:ff:ff:ff link-netnsid 4
    inet 10.244.2.1/32 scope global veth80b04848
       valid_lft forever preferred_lft forever
8: veth5b3df5e2@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 5e:ef:d2:fc:22:47 brd ff:ff:ff:ff:ff:ff link-netnsid 5
    inet 10.244.2.1/32 scope global veth5b3df5e2
       valid_lft forever preferred_lft forever
88: eth0@if89: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:ac:1d:00:03 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet 172.29.0.3/16 brd 172.29.255.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fc00:f853:ccd:e793::3/64 scope global nodad 
       valid_lft forever preferred_lft forever
    inet6 fe80::42:acff:fe1d:3/64 scope link 
       valid_lft forever preferred_lft forever

# ip route
default via 172.29.0.1 dev eth0 
10.244.0.0/24 via 172.29.0.2 dev eth0 
10.244.1.0/24 via 172.29.0.4 dev eth0 
10.244.2.2 dev veth200f2ef7 scope host 
10.244.2.3 dev vethe4a1f4cc scope host 
10.244.2.4 dev vethf9b67f5b scope host 
10.244.2.5 dev veth80b04848 scope host 
10.244.2.6 dev veth5b3df5e2 scope host 
172.29.0.0/16 dev eth0 proto kernel scope link src 172.29.0.3 

# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: tunl0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ipip 0.0.0.0 brd 0.0.0.0
3: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/tunnel6 :: brd ::
4: veth200f2ef7@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether d2:96:2c:7d:68:d2 brd ff:ff:ff:ff:ff:ff link-netnsid 1
5: vethe4a1f4cc@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 7a:58:0f:78:85:e8 brd ff:ff:ff:ff:ff:ff link-netnsid 2
6: vethf9b67f5b@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 32:0d:a0:38:61:47 brd ff:ff:ff:ff:ff:ff link-netnsid 3
7: veth80b04848@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether f2:b2:b0:ec:fd:6c brd ff:ff:ff:ff:ff:ff link-netnsid 4
8: veth5b3df5e2@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 5e:ef:d2:fc:22:47 brd ff:ff:ff:ff:ff:ff link-netnsid 5
88: eth0@if89: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default 
    link/ether 02:42:ac:1d:00:03 brd ff:ff:ff:ff:ff:ff link-netnsid 0

# vppctl show int addr
host-eth0 (up):
  L3 172.29.0.3/16
local0 (dn):
tap0 (up):

# vppctl show hardware
              Name                Idx   Link  Hardware
host-eth0                          1     up   host-eth0
  Link speed: unknown
  Ethernet address 02:42:ac:1d:00:03
  Linux PACKET socket interface
local0                             0    down  local0
  Link speed: unknown
  local
tap0                               2     up   tap0
  Link speed: unknown
  Ethernet address 02:fe:85:c7:60:97
  VIRTIO interface
     instance 0

# vppctl show ip neighbor
    Time                       IP                    Flags      Ethernet              Interface       
   3427.0697               172.29.0.1                  D    02:42:a0:b4:47:d9 host-eth0
      1.0529               172.29.0.2                  S    02:42:ac:1d:00:02 host-eth0
      1.0533               172.29.0.4                  S    02:42:ac:1d:00:04 host-eth0

# ip neighbor | grep 172.29.0.1    
172.29.0.1 dev eth0 lladdr 02:42:a0:b4:47:d9 REACHABLE
# ip neighbor | grep 172.29.0.2 
172.29.0.2 dev eth0 lladdr 02:42:ac:1d:00:02 REACHABLE
# ip neighbor | grep 172.29.0.4 
172.29.0.4 dev eth0 lladdr 02:42:ac:1d:00:04 REACHABLE

# vppctl show ip fib
ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto ] epoch:0 flags:none locks:[adjacency:1, default-route:1, nat-hi:2, ]
0.0.0.0/0
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:1 buckets:1 uRPF:18 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.1 host-eth0: mtu:1500 next:4 0242a0b447d90242ac1d00030800
0.0.0.0/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:2 buckets:1 uRPF:1 to:[0:0]]
    [0] [@0]: dpo-drop ip4
10.244.0.0/24
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:15 buckets:1 uRPF:16 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.2 host-eth0: mtu:1500 next:4 0242ac1d00020242ac1d00030800
10.244.1.0/24
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:17 buckets:1 uRPF:17 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.4 host-eth0: mtu:1500 next:4 0242ac1d00040242ac1d00030800
172.29.0.0/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:12 buckets:1 uRPF:11 to:[0:0]]
    [0] [@0]: dpo-drop ip4
172.29.0.1/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:16 buckets:1 uRPF:14 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.1 host-eth0: mtu:1500 next:4 0242a0b447d90242ac1d00030800
172.29.0.2/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:11 buckets:1 uRPF:7 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.2 host-eth0: mtu:1500 next:4 0242ac1d00020242ac1d00030800
172.29.0.0/16
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:9 buckets:1 uRPF:10 to:[0:0]]
    [0] [@4]: ipv4-glean: host-eth0: mtu:1500 next:1 ffffffffffff0242ac1d00030806
172.29.0.3/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:14 buckets:1 uRPF:15 to:[5:622]]
    [0] [@2]: dpo-receive: 172.29.0.3 on host-eth0
172.29.0.4/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:10 buckets:1 uRPF:8 to:[0:0]]
    [0] [@5]: ipv4 via 172.29.0.4 host-eth0: mtu:1500 next:4 0242ac1d00040242ac1d00030800
172.29.255.255/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:13 buckets:1 uRPF:13 to:[0:0]]
    [0] [@0]: dpo-drop ip4
224.0.0.0/4
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:4 buckets:1 uRPF:3 to:[0:0]]
    [0] [@0]: dpo-drop ip4
240.0.0.0/4
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:3 buckets:1 uRPF:2 to:[0:0]]
    [0] [@0]: dpo-drop ip4
255.255.255.255/32
  unicast-ip4-chain
  [@0]: dpo-load-balance: [proto:ip4 index:5 buckets:1 uRPF:4 to:[0:0]]
    [0] [@0]: dpo-drop ip4

@Mixaster995 Mixaster995 mentioned this issue Jun 11, 2021
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@denis-tingaikin
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I think this can be closed because we did a lot of with in heal.
@glazychev-art Be free to reopen this if the issue is still actual.

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