Details
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Bug
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Resolution: Fixed
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Major
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2.7.5
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None
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None
Description
We want to publish dns srv records and configure couchbase clients to use them as documented at:
https://developer.couchbase.com/documentation/server/current/sdk/c/managing-connections.html
However I ran into problems testing this. I'm using the python client 2.2.5 and libcouchbase 2.7.5 and a connection string like this:
b = Bucket('couchbases://cbvt-demo.in-couchbase.ei-lca1.stg.linkedin.com/demo1?console_log_level=5&ssl=on')
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since I am specifying 'couchbases' protocol I would expect this to perform a dns srv look of _couchbases._tcp.cbvt-demo.in-couchbase.ei-lca1.stg.linkedin.com . However what I actually observe (via network packet captures) is that it is doing a lookup against _couchbase (lack of "s" at the end)
So somehow the dns record string is being built up using the wrong protocol. As you can see from the above connection string I have even passed in ssl=on as a parameter to no avail. Here is console output of running my python script:
(couchbase-tools)[bweir@bweir-ld couchbase-tools_trunk]$ ./new2.py
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0ms [I0] {27775} [INFO] (instance - L:412) Version=2.7.5, Changeset=09a9e28dfaf9f70a7e230de66909fc5d9f3a6b4f
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0ms [I0] {27775} [INFO] (instance - L:413) Effective connection string: couchbases://cbvt-demo.in-couchbase.ei-lca1.stg.linkedin.com/demo1?console_log
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_level=5&ssl=on. Bucket=demo1
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Meanwhile in another terminal here's my packet capture:
[bweir@bweir-ld ~]$ sudo ngrep _couchbase port 53
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interface: eth0 (172.21.224.0/255.255.254.0)
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filter: ( port 53 ) and (ip or ip6)
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match: _couchbase
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U 172.21.224.109:38174 -> 172.21.195.101:53
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............._couchbase._tcp.cbvt-demo.in-couchbase.ei-lca1.stg.linkedin.com..!..
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#
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U 172.21.195.101:53 -> 172.21.224.109:38174
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............._couchbase._tcp.cbvt-demo.in-couchbase.ei-lca1.stg.linkedin.com..!.............4._http._tcp.in-couchbase.cbvt-demo.tag.ei-lca1.itd.;
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.].!.....,.%.......lca1-app2074.stg.linkedin.com..].!.....,.%.......lca1-app2076.stg.linkedin.com..].!.....,.%.......lca1-app2065.stg.linkedin.co
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m.................................................
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