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https://issues.apache.org/jira/browse/PIO-120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16157787#comment-16157787
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ASF GitHub Bot commented on PIO-120:
------------------------------------
GitHub user mars opened a pull request:
https://github.com/apache/incubator-predictionio/pull/432
[PIO-120] Process hangs if Elasticsearch is not available during train
Fixes [PIO-120](https://issues.apache.org/jira/browse/PIO-120)
This changeset ensures that the process exits gracefully after ES
connection error.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mars/incubator-predictionio
fix-es-hang-on-train
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-predictionio/pull/432.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #432
----
commit f1c7337e246c9bd2bed5cc080efcf3dc81e4b055
Author: Mars Hall <[email protected]>
Date: 2017-09-07T21:38:46Z
Graceful exit after ES connection error during train.
----
> Process hangs if Elasticsearch is not available during train
> ------------------------------------------------------------
>
> Key: PIO-120
> URL: https://issues.apache.org/jira/browse/PIO-120
> Project: PredictionIO
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.12.0-incubating
> Reporter: Mars Hall
> Assignee: Mars Hall
>
> I noticed that, when Elasticsearch is configured as meta storage, `pio train`
> will hang with the following error unless Elasticsearch is on-line/available:
> {code}
> Exception in thread "main" java.net.ConnectException: Connection refused
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
> at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
> at
> org.apache.predictionio.shaded.org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvent(DefaultConnectingIOReactor.java:171)
> at
> org.apache.predictionio.shaded.org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:145)
> at
> org.apache.predictionio.shaded.org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:348)
> at
> org.apache.predictionio.shaded.org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:192)
> at
> org.apache.predictionio.shaded.org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)
> at java.lang.Thread.run(Thread.java:745)
> {code}
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