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From Hossein Bahrami <h.bahr...@live.com>
Subject RE: Multiple apps problem
Date Tue, 17 Jan 2017 15:56:12 GMT
Hi Pat,

After changing the indexName the problem for mistaking the models resolved
but I find out that after retraining one model the other one get below error when sending
queries to it.

And as you mentioned I checked engine.json for both apps and they have not any similar setting

Stack Trace:
org.elasticsearch.indices.IndexMissingException: [abcIndexName] missing
                at org.elasticsearch.cluster.metadata.MetaData.convertFromWildcards(MetaData.java:884)
                at org.elasticsearch.cluster.metadata.MetaData.concreteIndices(MetaData.java:692)
                at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.<init>(TransportSearchTypeAction.java:118)
                at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction.<init>(TransportSearchQueryThenFetchAction.java:71)
                at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction.<init>(TransportSearchQueryThenFetchAction.java:65)
                at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction.doExecute(TransportSearchQueryThenFetchAction.java:62)
                at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction.doExecute(TransportSearchQueryThenFetchAction.java:52)
                at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:75)
                at org.elasticsearch.action.search.TransportSearchAction.doExecute(TransportSearchAction.java:100)
                at org.elasticsearch.action.search.TransportSearchAction.doExecute(TransportSearchAction.java:43)
                at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:75)
                at org.elasticsearch.action.support.HandledTransportAction$TransportHandler.messageReceived(HandledTransportAction.java:63)
                at org.elasticsearch.action.support.HandledTransportAction$TransportHandler.messageReceived(HandledTransportAction.java:51)
                at org.elasticsearch.transport.netty.MessageChannelHandler.handleRequest(MessageChannelHandler.java:222)
                at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:114)
                at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
                at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
                at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
                at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:296)
                at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
                at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
                at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)
                at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
                at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
                at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
                at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)
                at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
                at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
                at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)
                at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)
                at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
                at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
                at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
                at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
                at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
                at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
                at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
                at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
                at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
                at java.lang.Thread.run(Thread.java:745)

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

From: Hossein Bahrami<mailto:h.bahrami@live.com>
Sent: Monday, January 16, 2017 9:18 AM
To: Pat Ferrel<mailto:pat@occamsmachete.com>; user@predictionio.incubator.apache.org<mailto:user@predictionio.incubator.apache.org>
Subject: RE: Multiple apps problem

Hi Pat,

Thanks for your help, problem fixed.
The issue was about using same indexNames, everything else was correct except indexName.

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

From: Pat Ferrel<mailto:pat@occamsmachete.com>
Sent: Friday, January 13, 2017 7:40 PM
To: user@predictionio.incubator.apache.org<mailto:user@predictionio.incubator.apache.org>
Subject: Re: Multiple apps problem

You have 2 copies of the UR directory and 2 engine.json files and 2 input event sets? Make
sure there are different "indexName" set for each model in the 2 engine.json files. Otherwise
training of one engine will wipe out the other since they point to the same indexName.

To have 2 completely separate applications with different data you need:
1) 2 different EventServer appNames with different appids, create with `pio app new <your-app-name>`
2) 2 different indexNames for 2 models, set in the 2 engine.json files
3) each engine deployed on a separate port (you have this already)


On Jan 13, 2017, at 12:35 AM, Hossein Bahrami <h.bahrami@live.com<mailto:h.bahrami@live.com>>
wrote:

Hi Pat,

I have a Ubuntu machine which PredictionIo (0.9.7-aml) installed on it,
I have two application both based on Universal recommender template.
I trained both of the apps and deployed them on different ports .
Results of the apps were quite normal but the problem which I figured out later is that one
of the apps was predicting items with score zero so I retrained it then scores become normal
numbers but after this action (retraining) the other app start returning empty results, so
I retrained that one and then the first one returned zero score items again .

This is like closed circle and retraining each of apps causes the other app return empty results
or abnormal zero scored results.

Regards
Hossein

From: Pat Ferrel<mailto:pat@occamsmachete.com>
Sent: Thursday, January 12, 2017 5:57 PM
To: user@predictionio.incubator.apache.org<mailto:user@predictionio.incubator.apache.org>
Subject: Re: Multiple apps problem

This forum is to support Apache PIO, and the latest UR runs on it so I advise you upgrade.
Instructions are here on actionml.com<http://actionml.com/> or here for Apache PIO:
http://predictionio.incubator.apache.org/install/

I don't understand your explanation, there should be one train per PredictionServer, you can't
have one PS and two "engines" or configurations. The 2 engines must be on 2 different ports
if deployed separately.

Can you explain your setup and what you are trying to do?


On Jan 12, 2017, at 7:39 AM, Hossein Bahrami <h.bahrami@live.com<mailto:h.bahrami@live.com>>
wrote:

Hi everyone,

I have a very strange problem. I have two application running on one predictionio engine,
each time I train one of them the other one's predictions returning zero score items for one
of them and no items at all for the other.

I am using UR algorithm for both of apps

pio version : 0.9.7-aml

regards


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