[Search in multiple fields]

You mean Full-Text Search, I suppose. Theoretically, you can do it in CouchDB with additional plugins. 
https://docs.couchdb.org/en/latest/ddocs/search.html

But I'm not sure is Crossbar supports it after all.

[Integration between Kafka and Kazoo via Kafka connector for Couchdb]

Hi.

If it's done with replication, you may experience high load on CouchDB itself. Very likely you're going to have a big number of databases and lots of running replication tasks.

And clearly, if a DB struggles - all other components are going to have problems too.

This question is not that simple, actually.  But you can try ))

[KAZOO server behind NAT]

Hello.

You can edit the local.cfg of the Kamailio config, and add an advertisement rule, so your listen rule looks something like

listen=udp:10.2.0.10:5060 advertise 52.53.54.55:5060

More here:

https://www.kamailio.org/wiki/cookbooks/devel/core

[Call recording per channel]

Yummy! Works like a charm. Files are in the S3 bucket at the moment 

Thanks a lot. Should I create a bug in the tracker?

[Call recording per channel]

I have to say that my dev-server is also placed on Amazon infrastructure.

 "plan": {
    "modb": {
      "types": {
        "call_recording": {
          "attachments": {
            "handler": "859619ec3b764362982d76b2919b602d"
          }
        },
        "mailbox_message": {
          "attachments": {
            "handler": "859619ec3b764362982d76b2919b602d"
          }
        }
      }
    }
  },
  "attachments": {
    "859619ec3b764362982d76b2919b602d": {
      "settings": {
        "secret": "{AWS_SECRET}",
        "key": "{AWS_KEY}",
        "bucket": "devcallrec",
        "scheme": "https",
        "region": "eu-central-1"
      },
      "name": "Kazoo S3",
      "handler": "s3"
    }
  },

Also tried to add the "host" param to the configuration, but with no luck

[Call recording per channel]

Thank you!

Definitely, FS uses short DNS name and it wasn't written to /etc/hosts. I've fixed it, but now get more complicated 500 error. 

I'm using all-in-one server for tests, so I dumped 24517 port where FS sends mp3 file.

root@kzdev:/home/admin/# ss -antp|grep 24517
LISTEN     0      1000                      *:24517                    *:*      users:(("beam.smp",pid=10256,fd=27))

T 10.2.0.237:24517 -> 10.2.0.237:12388 [AP]
HTTP/1.1 500 Internal Server Error.
server: Cowboy.
date: Tue, 17 Oct 2017 16:53:36 GMT.
content-length: 304.
.
{socket_error,
    {nxdomain,
        [{lhttpc_client,send_request,1,
             [{file,"src/lhttpc_client.erl"},{line,222}]},
         {lhttpc_client,execute,9,[{file,"src/lhttpc_client.erl"},{line,171}]},
         {lhttpc_client,request,9,
             [{file,"src/lhttpc_client.erl"},{line,93}]}]}}

No idea which hostname the Cowboy tries to resolve, but I checked the short name, the fdqn and the hostname of S3 endpoint - and they are resolvable. Unfortunately, there is nothing in the main log about this 500 error.

[Call recording per channel]

Hello, guys. Hope you don't mind that I've interfered in your discussion. ))

I can't understand why my Kazoo (master) tries to save media files using default proxy params from system_config/media doc though I want it to save recordings to S3.

Oct 17 09:59:41 kzdev 2600hz[10256]: |NTY4OTU1ZjQwMWM4NTcyMzMxZGMxZWRiMTgyNmFjMzg.|kapps_call_command:3129 (<0.2934.0>) Error Storing File /tmp/10f704222e135bfcf08220c4bcf7c1ff.mp3 From Media Server freeswitch@kzdev.example.com : Received HTTP error 0 trying to save /tmp/10f704222e135bfcf08220c4bcf7c1ff.mp3 to http://d7f346ee18b67a81:43e86f68d5204a88@kzdev:24517/store/g2gEbQAAADdhY2NvdW50JTJGYzglMkYwYyUyRmMxMzA1ZTVkNjA0ZTZkNDY1OGQ2ZTZjYzk2MTctMjAxNzEwbQAAACcyMDE3MTAtOTM1MTNiZjk0YWZiNTNlODcyNTY5YmRiZDA1OTI4YjFtAAAAJDEwZjcwNDIyMmUxMzViZmNmMDgyMjBjNGJjZjdjMWZmLm1wM2wAAAABaAJkAAhkb2NfdHlwZW0AAAAOY2FsbF9yZWNvcmRpbmdq/10f704222e135bfcf08220c4bcf7c1ff.mp3

I've configured account-level params for recording, created storage and storage/plan, but can't force kazoo to send files to the proper place.