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| ygk_12345 | hi all | 13:00 |
|---|---|---|
| ygk_12345 | can someone explain me the difference between a l2 gateway port and a localnet port in the context of OVN ? | 13:01 |
| flaviof | o/ | 13:02 |
| flaviof | localnet is a "distributed port" convention that we have in ovn. it means that the same port is actually present on multiple nodes. special care is taken so the traffic to/from that port never leaves the node. l2 gw port is a logical router port that connects a router to an external network (like provider network in openstack). It has to be 'scheduled' to a gateway node and there is only one active at a given time. | 13:07 |
| flaviof | ygk_12345: ^^ ;) | 13:08 |
| flaviof | ygk_12345: a lot of these concepts become clearer once you get your hands into an ovn cluster. May I suggest some links? | 13:09 |
| ygk_12345 | sure please | 13:10 |
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| flaviof | ygk_12345: actually this one may be 'it': https://github.com/amorenoz/awesome-ovn | 13:11 |
| flaviof | ygk_12345: oh, one more ref. ;) There are a lot of good talks on ovn recorded here: http://www.openvswitch.org//support/ovscon2016/ change 2016 to the years after that | 13:13 |
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| ygk_12345 | is vteo gateway same as the physical node in openstack where the br-tun is connected to the physical nic of the vxlan network ? | 13:31 |
| ygk_12345 | *vtep | 13:32 |
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| flaviof | vtep is about tunneling. the endpoint can be a hw, but most often is a [v]irtual node. br-tun is just an ovs bridge. in ovn we do not use that and connect the tunnel ports directly to the integration bridge (aka br-int). this is more of an openstack topic, tho. not to be rude, but the more specific you can be with your questions, the more useful will be the answers you get. | 13:44 |
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| dcbw | imaximets: will ovsdb-server ever be given a couple databases at the same time? | 14:33 |
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| imaximets | dcbw, if you mean database files, than I don't think so. OTOH, ovsdb-server already always maintains 2 databases: _Server one and the actual one with data, so a single ovsdb-server is technically able to manage as many databases as you need. Not sure if it's possible to start it with more than one file right now, though. | 14:36 |
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| dcbw | imaximets: I was looking a this bit in ovsdb-server.c | 14:44 |
| dcbw | SHASH_FOR_EACH_SAFE (node, next, all_dbs) { | 14:44 |
| dcbw | struct db *db = node->data; | 14:44 |
| dcbw | ovsdb_txn_history_run(db->db); | 14:44 |
| dcbw | ovsdb_storage_run(db->db->storage); | 14:44 |
| dcbw | which implies it'll take a couple DBs and then let each of then "run" in turn | 14:44 |
| dcbw | motivation is to get the raft code to print out the local DB's server ID, but *after* OVS prints out the version info (since doing it before when the RAFT db gets read in looks kinda icky in the logs) | 14:45 |
| dcbw | so my thought was VLOG_INFO_ONCE("local server ID is "SID_FMT, SID_ARGS(&raft->sid)); in raft_run() | 14:45 |
| dcbw | but... if there are multiple DBs then that would only log once for whatever DB was first in all_dbs | 14:45 |
| dcbw | hence the question about all_dbs and if more than one of them would be RAFT enabled | 14:46 |
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| imaximets | dcbw, you may log this inside raft_open(), I guess. | 14:54 |
| dcbw | right, but that runs way before the OVS version message, which seems icky | 15:07 |
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