When I brought the demo up, keywords were changing but slowly. The only way it could get stuck is
if the window was not sliding properly. You could put some debug statements. Also try increasing the number of epochs to 3 or 4

Pranab

http://www.linkedin.com/in/pkghosh
http://pkghosh.wordpress.com

Date: Wed, 24 Sep 2014 04:16:47 -0700
From: [email protected]
To: [email protected]
Subject: [hoidla] Sketches implementation gets stuck with the first 'k' keywords (#3)

We are using the sketches implementation. If we start it from scratch, it works well and gets the first 'k' configured trending keywords. After, that it is always stuck with those and the trends do not change. Here is my configuration file-

Common Properties

debug.on=false

Topology Properties

spout.threads=1
sketches.bolt.threads=2
aggr.bolt.threads=1
num.workers=1
max.spout.pending=1000
max.task.parallelism=100

RabbitMQ Spout

epoch.event=100

Trending Sketches Bolt

id.fld=_FCID
tick.freq.sec=10
sketches.error.lim=0.05
sketches.error.prob.limit=0.02
sketches.most.freq.count=10
sketches.freq.count.lim.percent=10
sketches.expiry.policy=epoch
sketches.max.epoch=2
sketches.epoch.size=60

—
Reply to this email directly or view it on GitHub. =

from hoidla.

Did the following change-

sketches.most.freq.count=20
sketches.max.epoch=4

The current trending words over twitter are-

Lets see if they change- http://analyze.formcept.com/trends/

from hoidla.

Just sent a fix in #4. The current instance is running with the fix and looking for top 20 trends- http://analyze.formcept.com/trends/. Last trend register at the time of this post was-

from hoidla.

I am closing this one because the PR #4 has been merged and additional configuration parameter will take care of this setting- 95605d0

from hoidla.