Thank you for the advice, Darren. Let me test on them.
Best Regards, Yu From: Kea-users <kea-users-boun...@lists.isc.org> on behalf of Darren Ankney <darren.ank...@gmail.com> Date: Friday, March 29, 2024 at 6:58 AM To: Kea user's list <kea-users@lists.isc.org> Subject: Re: [Kea-users] [EXTERNAL] Re: kea-2.4.1 // Strange HA related errors Hi Yu, You will need to enable multi-threading dedicated listener for HA as described here: https://urldefense.com/v3/__https://kea.readthedocs.io/en/kea-2.4.1/arm/hooks.html*multi-threaded-configuration-ha-mt__;Iw!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1garUIhR_$<https://urldefense.com/v3/__https:/kea.readthedocs.io/en/kea-2.4.1/arm/hooks.html*multi-threaded-configuration-ha-mt__;Iw!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1garUIhR_$> or alter your "url" in each in the peers blocks to port 8001 so that they communicate via the kea-ctrl-agent. I think that should fix it. Thank you, Darren Ankney On Tue, Mar 26, 2024 at 7:58 AM Xiao, Yu (CCI-Atlanta) via Kea-users <kea-users@lists.isc.org> wrote: > > Hi Darren, > > > > I am using 2.4.1. > > > > > > Best Regards, > > Yu > > > > > > From: Kea-users <kea-users-boun...@lists.isc.org> on behalf of Darren Ankney > <darren.ank...@gmail.com> > Date: Tuesday, March 26, 2024 at 6:03 AM > To: Kea user's list <kea-users@lists.isc.org> > Subject: [EXTERNAL] Re: [Kea-users] kea-2.4.1 // Strange HA related errors > > Hello Yu, > > What version of Kea are you running on these servers, out of curiosity? > > Thank you, > Darren Ankney > > On Mon, Mar 25, 2024 at 10:55 AM Xiao, Yu (CCI-Atlanta) via Kea-users > <kea-users@lists.isc.org> wrote: > > > > Hi experts, > > > > > > > > I have configured two VMs in the same hypervisor as hot-standby mode HA. I > > believe they are successfully communicating with each other with heart beat > > packets, as we can see the primary VM kea-1 has successfully received the > > “ha-heartbeat” from the standby VM kea-2 in green logs. But the red logs > > indicate that the ha_hooks think the HA heartbeat communications failed due > > to “no route”. But this is a LAN network, and there’s indeed route > > installed as we can see below and we can ping the 69 ip. > > > > > > > > [yxiao322@kea_home1 ~]$ ip route > > > > 192.168.100.0/24 dev ens18 proto kernel scope link src 192.168.100.197 > > metric 100 <<< This should be the route to 192.168.100.69 > > > > 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 > > linkdown > > > > > > > > [root@kea_home1 yxiao322]# ping 192.168.100.69 > > > > PING 192.168.100.69 (192.168.100.69) 56(84) bytes of data. > > > > 64 bytes from 192.168.100.69: icmp_seq=1 ttl=64 time=0.342 ms > > > > 64 bytes from 192.168.100.69: icmp_seq=2 ttl=64 time=0.302 ms > > > > 64 bytes from 192.168.100.69: icmp_seq=3 ttl=64 time=0.236 ms > > > > ^Z > > > > [1]+ Stopped ping 192.168.100.69 > > > > > > > > And if I stop the kea service on primary, then we can see standby server > > will complain “communication with kea_home1 is interrupted”. And as soon as > > I start kea service again on primary, then the database began sync again. > > Thus, I believe there’s indeed communications and syncs between primary and > > standby VMs. But for some reason, if I shut the kea service on primary, > > then the standby won’t distribute DHCP leases even after I waited for a > > long time. Did I miss something here? > > > > > > > > > > > > Primary logs: > > > > > > > > Mar 25 10:35:37 kea_home1 kea-dhcp6[1224]: 2024-03-25 10:35:37.198 INFO > > [kea-dhcp6.commands/1224.139988007651072] COMMAND_RECEIVED Received command > > 'ha-heartbeat' > > > > Mar 25 10:35:37 kea_home1 kea-dhcp6[1224]: 2024-03-25 10:35:37.627 WARN > > [kea-dhcp6.ha-hooks/1224.139988049614592] > > HA_HEARTBEAT_COMMUNICATIONS_FAILED failed to send heartbeat to kea_home2 > > (https://urldefense.com/v3/__http://192.168.100.69:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTi1Q4B1j$ > > ): No route to host > > > > Mar 25 10:35:37 kea_home1 kea-dhcp6[1224]: 2024-03-25 10:35:37.627 WARN > > [kea-dhcp6.ha-hooks/1224.139988049614592] HA_COMMUNICATION_INTERRUPTED > > communication with kea_home2 is interrupted > > > > Mar 25 10:35:38 kea_home1 kea-dhcp6[1224]: 2024-03-25 10:35:38.199 INFO > > [kea-dhcp6.commands/1224.139988016043776] COMMAND_RECEIVED Received command > > 'ha-heartbeat' > > > > Mar 25 10:35:38 kea_home1 kea-dhcp6[1224]: 2024-03-25 10:35:38.627 WARN > > [kea-dhcp6.ha-hooks/1224.139988032829184] > > HA_HEARTBEAT_COMMUNICATIONS_FAILED failed to send heartbeat to kea_home2 > > (https://urldefense.com/v3/__http://192.168.100.69:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTi1Q4B1j$ > > ): No route to host > > > > Mar 25 10:35:38 kea_home1 kea-dhcp6[1224]: 2024-03-25 10:35:38.627 WARN > > [kea-dhcp6.ha-hooks/1224.139988032829184] HA_COMMUNICATION_INTERRUPTED > > communication with kea_home2 is interrupted > > > > > > > > Standby logs: > > > > > > > > Mar 25 10:10:24 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:24.129 WARN > > [kea-dhcp6.ha-hooks/2836.139717198915328] HA_COMMUNICATION_INTERRUPTED > > communication with kea_home1 is interrupted > > > > Mar 25 10:10:25 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:25.130 WARN > > [kea-dhcp6.ha-hooks/2836.139717207308032] > > HA_HEARTBEAT_COMMUNICATIONS_FAILED failed to send heartbeat to kea_home1 > > (https://urldefense.com/v3/__http://192.168.100.197:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTiEJ4bVb$ > > ): Connection refused > > > > Mar 25 10:10:25 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:25.130 WARN > > [kea-dhcp6.ha-hooks/2836.139717207308032] HA_COMMUNICATION_INTERRUPTED > > communication with kea_home1 is interrupted > > > > Mar 25 10:10:26 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:26.132 WARN > > [kea-dhcp6.ha-hooks/2836.139717190522624] > > HA_HEARTBEAT_COMMUNICATIONS_FAILED failed to send heartbeat to kea_home1 > > (https://urldefense.com/v3/__http://192.168.100.197:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTiEJ4bVb$ > > ): Connection refused > > > > Mar 25 10:10:26 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:26.132 WARN > > [kea-dhcp6.ha-hooks/2836.139717190522624] HA_COMMUNICATION_INTERRUPTED > > communication with kea_home1 is interrupted > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.136 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_STATE_TRANSITION server > > transitions from PARTNER-DOWN to WAITING state, partner state is > > PARTNER-DOWN > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.137 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_LEASE_UPDATES_DISABLED lease > > updates will not be sent to the partner while in WAITING state > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.137 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_LOCAL_DHCP_DISABLE local DHCP > > service is disabled while the kea_home2 is in the WAITING state > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.137 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_STATE_TRANSITION server > > transitions from WAITING to SYNCING state, partner state is PARTNER-DOWN > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.137 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_LEASE_UPDATES_DISABLED lease > > updates will not be sent to the partner while in SYNCING state > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.137 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_SYNC_START starting lease > > database synchronization with kea_home1 > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.140 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] > > HA_LEASES_SYNC_LEASE_PAGE_RECEIVED received 3 leases from kea_home1 > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.141 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_SYNC_SUCCESSFUL lease database > > synchronization with kea_home1 completed successfully in 4.350 ms > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.142 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_STATE_TRANSITION server > > transitions from SYNCING to READY state, partner state is PARTNER-DOWN > > > > Mar 25 10:10:27 kea_home2 kea-dhcp6[2836]: 2024-03-25 10:10:27.142 INFO > > [kea-dhcp6.ha-hooks/2836.139717215700736] HA_LEASE_UPDATES_DISABLED lease > > updates will not be sent to the partner while in READY state > > > > > > > > Primary Config: > > > > > > > > # HA related hooks configuration > > > > "hooks-libraries": [{ > > > > "library": "/usr/lib64/kea/hooks/libdhcp_lease_cmds.so", > > > > "parameters": { } > > > > }, { > > > > "library": "/usr/lib64/kea/hooks/libdhcp_ha.so", > > > > "parameters": { > > > > "high-availability": [{ > > > > "this-server-name": "kea_home1", > > > > "mode": "hot-standby", > > > > "heartbeat-delay": 200, > > > > "max-response-delay": 600, > > > > "max-ack-delay": 800, > > > > "max-unacked-clients": 5, > > > > "send-lease-updates": true, > > > > "sync-leases": true, > > > > "sync-page-limit": 200, > > > > "sync-timeout": 600, > > > > "delayed-updates-limit": 0, > > > > "peers": [{ > > > > "name": "kea_home1", > > > > "url": > > https://urldefense.com/v3/__http://192.168.100.197:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTiEJ4bVb$<https://urldefense.com/v3/__http:/192.168.100.197:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTiEJ4bVb$> > > , > > > > "role": "primary", > > > > "auto-failover": true > > > > }, { > > > > "name": "kea_home2", > > > > "url": > > https://urldefense.com/v3/__http://192.168.100.69:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTi1Q4B1j$<https://urldefense.com/v3/__http:/192.168.100.69:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTi1Q4B1j$> > > , > > > > "role": "standby", > > > > "auto-failover": true > > > > }] > > > > }] > > > > } > > > > }], > > > > > > > > > > > > "Control-agent": { > > > > "http-host": "192.168.100.197", > > > > // If enabling HA and multi-threading, the 8000 port is used by the HA > > > > // hook library http listener. When using HA hook library with > > > > // multi-threading to function, make sure the port used by dedicated > > > > // listener is different (e.g. 8001) than the one used by CA. Note > > > > // the commands should still be sent via CA. The dedicated listener > > > > // is specifically for HA updates only. > > > > "http-port": 8001, > > > > > > > > > > > > Standby config: > > > > > > > > # HA related hooks configuration > > > > "hooks-libraries": [{ > > > > "library": "/usr/lib64/kea/hooks/libdhcp_lease_cmds.so", > > > > "parameters": { } > > > > }, { > > > > "library": "/usr/lib64/kea/hooks/libdhcp_ha.so", > > > > "parameters": { > > > > "high-availability": [{ > > > > "this-server-name": "kea_home2", > > > > "mode": "hot-standby", > > > > "heartbeat-delay": 200, > > > > "max-response-delay": 600, > > > > "max-ack-delay": 800, > > > > "max-unacked-clients": 5, > > > > "delayed-updates-limit": 0, > > > > "send-lease-updates": true, > > > > "sync-leases": true, > > > > "sync-page-limit": 200, > > > > "sync-timeout": 600, > > > > "peers": [{ > > > > "name": "kea_home1", > > > > "url": > > https://urldefense.com/v3/__http://192.168.100.197:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTiEJ4bVb$<https://urldefense.com/v3/__http:/192.168.100.197:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTiEJ4bVb$> > > , > > > > "role": "primary", > > > > "auto-failover": true > > > > }, { > > > > "name": "kea_home2", > > > > "url": > > https://urldefense.com/v3/__http://192.168.100.69:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTi1Q4B1j$<https://urldefense.com/v3/__http:/192.168.100.69:8000/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTi1Q4B1j$> > > , > > > > "role": "standby", > > > > "auto-failover": true > > > > }] > > > > }] > > > > } > > > > }], > > > > > > > > "Control-agent": { > > > > "http-host": "192.168.100.69", > > > > // If enabling HA and multi-threading, the 8000 port is used by the HA > > > > // hook library http listener. When using HA hook library with > > > > // multi-threading to function, make sure the port used by dedicated > > > > // listener is different (e.g. 8001) than the one used by CA. Note > > > > // the commands should still be sent via CA. The dedicated listener > > > > // is specifically for HA updates only. > > > > "http-port": 8001, > > > > > > > > > > > > Best Regards, > > > > Yu > > > > > > > > -- > > ISC funds the development of this software with paid support subscriptions. > > Contact us at > > https://urldefense.com/v3/__https://www.isc.org/contact/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTl3O_IGO$<https://urldefense.com/v3/__https:/www.isc.org/contact/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTl3O_IGO$> > > for more information. > > > > To unsubscribe visit > > https://urldefense.com/v3/__https://lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$> > > . > > > > Kea-users mailing list > > Kea-users@lists.isc.org > > https://urldefense.com/v3/__https://lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$> > -- > ISC funds the development of this software with paid support subscriptions. > Contact us at > https://urldefense.com/v3/__https://www.isc.org/contact/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTl3O_IGO$<https://urldefense.com/v3/__https:/www.isc.org/contact/__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTl3O_IGO$> > for more information. > > To unsubscribe visit > https://urldefense.com/v3/__https://lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$> > . > > Kea-users mailing list > Kea-users@lists.isc.org > https://urldefense.com/v3/__https://lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!xbrgKugiAG9Ig2_84VjCtBW6x-DpB9Aox3x1n_oCHrMu1W-ZDDMlKiorN7OVohqT2UUHSGoJ3ePqTp7W6GPF$> > > -- > ISC funds the development of this software with paid support subscriptions. > Contact us at > https://urldefense.com/v3/__https://www.isc.org/contact/__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gbTSITyu$<https://urldefense.com/v3/__https:/www.isc.org/contact/__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gbTSITyu$> > for more information. > > To unsubscribe visit > https://urldefense.com/v3/__https://lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gf4IdHNb$<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gf4IdHNb$> > . > > Kea-users mailing list > Kea-users@lists.isc.org > https://urldefense.com/v3/__https://lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gf4IdHNb$<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gf4IdHNb$> -- ISC funds the development of this software with paid support subscriptions. 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Kea-users mailing list Kea-users@lists.isc.org https://urldefense.com/v3/__https://lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gf4IdHNb$<https://urldefense.com/v3/__https:/lists.isc.org/mailman/listinfo/kea-users__;!!Hit2Ag!zoh5xPnvNfIYnDVa8fKOaBy5jIIQIMWT5qUv1AwVKSJJWw6Sv4JGdCWpcT1787WpOLtTS--cCCJ1gf4IdHNb$>
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