Re: Synchronization issue with parallel downloads

Tue, 03 Mar 2009 03:10:12 -0800 

This should be easy to replicate, I'll reopen the issue.

On 03/03/2009, at 10:07 PM, Benjamin Bentmann wrote:


Hi,
I just stumbled upon another issue with the parallel artifact resolution in 2.1.x: 


+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------ 
[INFO] Building Maven Integration Test :: Boostrap
[INFO]    task-segment: [test-compile]
[INFO] ------------------------------------------------------------------------ 
[INFO] [resources:resources]
[INFO] Using default encoding to copy filtered resources.
[INFO] snapshot org.apache.maven.its.plugins:maven-it-plugin-error: 2.1-SNAPSHOT: checking for updates from apache.snapshots [INFO] snapshot org.apache.maven.its.plugins:maven-it-plugin-plexus- component-api:2.1-SNAPSHOT: checking for updates from apache.snapshots [INFO] snapshot org.apache.maven.its.plugins:maven-it-plugin- toolchain:2.1-SNAPSHOT: checking for updates from apache.snapshots 
[INFO] [compiler:compile]
[INFO] No sources to compile
[INFO] [resources:testResources]
[INFO] Using default encoding to copy filtered resources.
Downloading: 
http://repository.sonatype.org/content/repositories/maven.snapshots/org/apache/maven/plugins/maven-clean-plugin/0.1-stub-SNAPSHOT/maven-clean-plugin-0.1-stub-20090302.180447-250.jar
Downloading: 
http://repository.sonatype.org/content/repositories/maven.snapshots/org/apache/maven/its/plugins/maven-it-plugin-packaging/2.1-SNAPSHOT/maven-it-plugin-packaging-2.1-20090302.180447-362.jar
Exception in thread "pool-1-thread-2" java.lang.RuntimeException: org.apache.maven.artifact.resolver.ArtifactResolutionException: Error transferring file: Connection refused: connect org.apache.maven.plugins:maven-clean-plugin:jar:0.1- stub-20090302.180447-250 
from the specified remote repositories:
 apache.snapshots (http://repository.apache.org/snapshots),
 central (http://repo1.maven.org/maven2),
maven.it (http://repository.sonatype.org/content/repositories/maven.snapshots ) Path to dependency: 1) org.apache.maven.its.bootstrap:maven-it- boostrap:jar:1.0 
        2) org.apache.maven.plugins:maven-clean-plugin:jar:0.1-stub-SNAPSHOT
at org.apache.maven.artifact.resolver.DefaultArtifactResolver $ResolveArtifactTask.run(DefaultArtifactResolver.java:443) at hidden .edu .emory .mathcs .backport .java .util .concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java: 1061) at hidden .edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor $Worker.run(ThreadPoolExecutor.java:575) 
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.maven.artifact.resolver.ArtifactResolutionException: Error transferring file: Connection refused: connect org.apache.maven.plugins:maven-clean-plugin:jar:0.1- stub-20090302.180447-250 
from the specified remote repositories:
 apache.snapshots (http://repository.apache.org/snapshots),
 central (http://repo1.maven.org/maven2),
maven.it (http://repository.sonatype.org/content/repositories/maven.snapshots ) Path to dependency: 1) org.apache.maven.its.bootstrap:maven-it- boostrap:jar:1.0 
        2) org.apache.maven.plugins:maven-clean-plugin:jar:0.1-stub-SNAPSHOT
at org .apache .maven .artifact .resolver .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:233) at org .apache .maven .artifact .resolver .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:90) at org.apache.maven.artifact.resolver.DefaultArtifactResolver $ResolveArtifactTask.resolveArtifact(DefaultArtifactResolver.java: 453) at org.apache.maven.artifact.resolver.DefaultArtifactResolver $ResolveArtifactTask.run(DefaultArtifactResolver.java:434) 
        ... 3 more
Caused by: org.apache.maven.wagon.TransferFailedException: Error transferring file: Connection refused: connect at org .apache .maven .wagon .providers .http.LightweightHttpWagon.fillInputData(LightweightHttpWagon.java: 143) at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java: 116) at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java: 88) 
        at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
at org .apache .maven .artifact .manager.DefaultWagonManager.getRemoteFile(DefaultWagonManager.java: 491) at org .apache .maven .artifact .manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java: 372) at org .apache .maven .artifact .resolver .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:212) 
        ... 6 more
Caused by: java.net.ConnectException: Connection refused: connect
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java: 195) 
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
        at java.net.Socket.connect(Socket.java:519)
        at java.net.Socket.connect(Socket.java:469)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
        at sun.net.www.http.HttpClient.New(HttpClient.java:306)
        at sun.net.www.http.HttpClient.New(HttpClient.java:323)
at sun .net .www .protocol .http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:788) at sun .net .www .protocol .http.HttpURLConnection.plainConnect(HttpURLConnection.java:729) at sun .net .www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java: 654) at sun .net .www .protocol .http.HttpURLConnection.getInputStream(HttpURLConnection.java:977) at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java: 373) at org .apache .maven .wagon .providers .http.LightweightHttpWagon.fillInputData(LightweightHttpWagon.java: 115) 
        ... 12 more
Exception in thread "pool-1-thread-1" java.lang.RuntimeException: org.apache.maven.artifact.resolver.ArtifactResolutionException: Error transferring file: Connection refused: connect org.apache.maven.its.plugins:maven-it-plugin-packaging:jar: 2.1-20090302.180447-362 
from the specified remote repositories:
 apache.snapshots (http://repository.apache.org/snapshots),
 central (http://repo1.maven.org/maven2),
maven.it (http://repository.sonatype.org/content/repositories/maven.snapshots ) Path to dependency: 1) org.apache.maven.its.bootstrap:maven-it- boostrap:jar:1.0 2) org.apache.maven.its.plugins:maven-it-plugin-packaging:jar:2.1- SNAPSHOT at org.apache.maven.artifact.resolver.DefaultArtifactResolver $ResolveArtifactTask.run(DefaultArtifactResolver.java:443) at hidden .edu .emory .mathcs .backport .java .util .concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java: 1061) at hidden .edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor $Worker.run(ThreadPoolExecutor.java:575) 
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.maven.artifact.resolver.ArtifactResolutionException: Error transferring file: Connection refused: connect org.apache.maven.its.plugins:maven-it-plugin-packaging:jar: 2.1-20090302.180447-362 
from the specified remote repositories:
 apache.snapshots (http://repository.apache.org/snapshots),
 central (http://repo1.maven.org/maven2),
maven.it (http://repository.sonatype.org/content/repositories/maven.snapshots ) Path to dependency: 1) org.apache.maven.its.bootstrap:maven-it- boostrap:jar:1.0 2) org.apache.maven.its.plugins:maven-it-plugin-packaging:jar:2.1- SNAPSHOT at org .apache .maven .artifact .resolver .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:233) at org .apache .maven .artifact .resolver .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:90) at org.apache.maven.artifact.resolver.DefaultArtifactResolver $ResolveArtifactTask.resolveArtifact(DefaultArtifactResolver.java: 453) at org.apache.maven.artifact.resolver.DefaultArtifactResolver $ResolveArtifactTask.run(DefaultArtifactResolver.java:434) 
        ... 3 more
Caused by: org.apache.maven.wagon.TransferFailedException: Error transferring file: Connection refused: connect at org .apache .maven .wagon .providers .http.LightweightHttpWagon.fillInputData(LightweightHttpWagon.java: 143) at org.apache.maven.wagon.StreamWagon.getInputStream(StreamWagon.java: 116) at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java: 88) 
        at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61)
at org .apache .maven .artifact .manager.DefaultWagonManager.getRemoteFile(DefaultWagonManager.java: 491) at org .apache .maven .artifact .manager.DefaultWagonManager.getArtifact(DefaultWagonManager.java: 372) at org .apache .maven .artifact .resolver .DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:212) 
        ... 6 more
Caused by: java.net.ConnectException: Connection refused: connect
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java: 195) 
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
        at java.net.Socket.connect(Socket.java:519)
        at java.net.Socket.connect(Socket.java:469)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
        at sun.net.www.http.HttpClient.New(HttpClient.java:306)
        at sun.net.www.http.HttpClient.New(HttpClient.java:323)
at sun .net .www .protocol .http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:788) at sun .net .www .protocol .http.HttpURLConnection.plainConnect(HttpURLConnection.java:729) at sun .net .www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java: 654) at sun .net .www .protocol .http.HttpURLConnection.getInputStream(HttpURLConnection.java:977) at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java: 373) at org .apache .maven .wagon .providers .http.LightweightHttpWagon.fillInputData(LightweightHttpWagon.java: 115) 
        ... 12 more
That's the complete log I could grab from core-it-suite/target/test- classes/bootstrap/log.txt during a local run of the ITs. Note that the log does not contain "BUILD ERROR" or any other indication of the build termination, it's hanging (for about 20 minutes now)... I guess the exception handling needs some more love. 


Benjamin

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--
Brett Porter
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http://blogs.exist.com/bporter/


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