Any Help?
On Tue, Nov 10, 2015 at 7:44 PM, Neha Dave wrote:
> How can we achieve Nested Collections in cassandra.
>
> My requirement :
> metadata map> ... Is it possible?
>
> Eg. 'mime-type' : 'MIME'
> 'Security' : {'SOX','FOX'}
>
> Query will be Give me all the ID's where 'Security' : {
You can only nest frozen collections and even then you can only access the
full nested value, not individual entries within the nested map.
So, in your example, you can only access mimetype and then must specify the
full mime type value, which doesn't satisfy your query requirement.
You will need
Hi Rob,
I checked tpstats and there are no dropped mutations (though I checked it after
restating the affected nodes). If the problem occurs again, I will check
tpstats again. Is there any stat that shows failed hints? The only abnormality
I see is 1 flush writer got blocked (All time blocked =
Thanks Daemeon !!
I wil capture the output of netstats and share in next few days. We were
thinking of taking tcp dumps also. If its a network issue and increasing
request timeout worked, not sure how Cassandra is dropping messages based on
timeout.Repair messages are non droppable and not sup
One more observation.We observed that there are few TCP connections which node
shows as Established but when we go to node at other end,connection is not
there. They are called "phantom" connections I guess. Can this be a possible
cause?
Thanks
Anuj
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