without that, your provided repo is only used for stuff that isn't found in the default repos

(from https://druid.apache.org/docs/latest/operations/pull-deps.html)

note; similar thread here, i wonder if you are running into the same thing? https://apachedruidworkspace.slack.com/archives/C0303FDCZEZ/p1663739533640179

I don't see any references in our code to repo.maven.apache.org though, which is why i was wondering if your repo was somehow delegating to that one for objects it didn't have locally

If you specify no default remote repositories, and don't provide your own remote (so it'll be local only) -- do you still see it trying to contact repo.maven.apache.org?

I'm wondering if that still tries to make network calls for some reason

Downloading artifact org.apache.httpcomponentshttpclientpom:4.5.13 from (https://repo1.maven.org/maven2/, releases+snapshots) 235311.199 [main] DEBUG org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider - Using connector AetherRepositoryConnector with priority 3.4028235E38 for https://repo1.maven.org/maven2/ Downloading: https://repo1.maven.org/maven2/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom Downloaded: https://repo1.maven.org/maven2/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom (7 KB at 6.8 KB/sec) Downloaded artifact org.apache.httpcomponentshttpclientpom:4.5.13 from (https://repo1.maven.org/maven2/, releases+snapshots) Resolved artifact org.apache.httpcomponentshttpclientpom:4.5.13 from (https://repo1.maven.org/maven2/, releases+snapshots) Downloading artifact org.apache.httpcomponentshttpclientpom:4.5.13 from apache.snapshots (https://repository.apache.org/snapshots, releases+snapshots) 235312.149 [main] DEBUG org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider - Using connector AetherRepositoryConnector with priority 3.4028235E38 for https://repository.apache.org/snapshots Downloading: https://repository.apache.org/snapshots/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom io.tesla.aether.connector.ResourceDoesNotExistException: Unable to locate resource https://repository.apache.org/snapshots/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom. Error code 404

from the above logs we can see that even after once downloading it again goes to multiple repos and it should not happen since it has already downloaded that particular file

Downloading: https://repo1.maven.org/maven2/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom Downloaded: https://repo1.maven.org/maven2/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom (7 KB at 6.8 KB/sec) Downloaded artifact org.apache.httpcomponentshttpclientpom:4.5.13 from (https://repo1.maven.org/maven2/, releases+snapshots) Resolved artifact org.apache.httpcomponentshttpclientpom:4.5.13 from (https://repo1.maven.org/maven2/, releases+snapshots) Downloading artifact org.apache.httpcomponentshttpclientpom:4.5.13 from apache.snapshots (https://repository.apache.org/snapshots, releases+snapshots) 235312.149 [main] DEBUG org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider - Using connector AetherRepositoryConnector with priority 3.4028235E38 for https://repository.apache.org/snapshots Downloading: https://repository.apache.org/snapshots/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom io.tesla.aether.connector.ResourceDoesNotExistException: Unable to locate resource https://repository.apache.org/snapshots/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom. Error code 404 at io.tesla.aether.connector.AetherRepositoryConnector.handleResponseCode(AetherRepositoryConnector.java:298) at io.tesla.aether.connector.AetherRepositoryConnector.access$900(AetherRepositoryConnector.java:85) at io.tesla.aether.connector.AetherRepositoryConnector$GetTask.resumableGet(AetherRepositoryConnector.java:549) at io.tesla.aether.connector.AetherRepositoryConnector$GetTask.run(AetherRepositoryConnector.java:391) at io.tesla.aether.connector.AetherRepositoryConnector.get(AetherRepositoryConnector.java:232) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:535) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:436) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:239) at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:320) at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:217) at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:461) at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:573) at org.eclipse.aether.internal.impl.DefaultDependencyCollector.process(DefaultDependencyCollector.java:573) at org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:261) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:342) at io.tesla.aether.internal.DefaultTeslaAether.resolveArtifacts(DefaultTeslaAether.java:289) at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:407) at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:365) at org.apache.druid.cli.PullDependencies.run(PullDependencies.java:311) at org.apache.druid.cli.Main.main(Main.java:114) Downloaded artifact org.apache.httpcomponentshttpclientpom:4.5.13 from apache.snapshots (https://repository.apache.org/snapshots, releases+snapshots) Downloading artifact org.apache.httpcomponentshttpclientpom:4.5.13 from sigar (https://repository.mulesoft.org/nexus/content/repositories/public, releases+snapshots) 235317.594 [main] DEBUG org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider - Using connector AetherRepositoryConnector with priority 3.4028235E38 for https://repository.mulesoft.org/nexus/content/repositories/public Downloading: https://repository.mulesoft.org/nexus/content/repositories/public/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom Downloaded: https://repository.mulesoft.org/nexus/content/repositories/public/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom (7 KB at 4.2 KB/sec) Downloaded artifact org.apache.httpcomponentshttpclientpom:4.5.13 from sigar (https://repository.mulesoft.org/nexus/content/repositories/public, releases+snapshots) Resolved artifact org.apache.httpcomponentshttpclientpom:4.5.13 from sigar (https://repository.mulesoft.org/nexus/content/repositories/public, releases+snapshots) Downloading artifact org.apache.httpcomponentshttpclientpom:4.5.13 from central (http://repo.maven.apache.org/maven2, releases) 235319.149 [main] DEBUG org.eclipse.aether.internal.impl.DefaultRepositoryConnectorProvider - Using connector AetherRepositoryConnector with priority 3.4028235E38 for http://repo.maven.apache.org/maven2

Downloading: <http://repo.maven.apache.org/maven2/org/apache/httpcomponents/httpclient/4.5.13/httpclient-4.5.13.pom>

here in the last line it's making http call, even after downloading

012650.983 [main] INFO org.apache.druid.cli.PullDependencies - Start downloading dependencies for extension coordinates: [[org.apache.druid.extensionsdruid hdfs storage0.23.0]] 012650.985 [main] INFO org.apache.druid.cli.PullDependencies - Directory [/home/ashish/apache-druid-0.23.0/extensions/druid-hdfs-storage] already exists, skipping creating a directory 012650.989 [main] INFO org.apache.druid.cli.PullDependencies - Start downloading extension [org.apache.druid.extensionsdruid hdfs storagejar:0.23.0] Resolving artifact org.apache.druid.extensionsdruid hdfs storagepom:0.23.0 Resolved artifact org.apache.druid.extensionsdruid hdfs storagepom:0.23.0 from null Missing artifact descriptor for org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 012651.008 [main] DEBUG org.eclipse.aether.internal.impl.DefaultDependencyCollector - Dependency collection stats: {ConflictMarker.analyzeTime=1, ConflictMarker.markTime=0, ConflictMarker.nodeCount=1, ConflictIdSorter.graphTime=0, ConflictIdSorter.topsortTime=0, ConflictIdSorter.conflictIdCount=1, ConflictIdSorter.conflictIdCycleCount=0, ConflictResolver.totalTime=4, ConflictResolver.conflictItemCount=1, DefaultDependencyCollector.collectTime=10, DefaultDependencyCollector.transformTime=6} Resolving artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 Resolved artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 from null 012651.012 [main] ERROR org.apache.druid.cli.PullDependencies - Unable to resolve artifacts for [org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 (runtime) -> [] < []]. org.eclipse.aether.resolution.DependencyResolutionException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:384) ~[aether-impl-0.9.0.M2.jar:?] at io.tesla.aether.internal.DefaultTeslaAether.resolveArtifacts(DefaultTeslaAether.java:289) ~[tesla-aether-0.0.5.jar:0.0.5] at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:407) [druid-services-0.23.0.jar:0.23.0] at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:365) [druid-services-0.23.0.jar:0.23.0] at org.apache.druid.cli.PullDependencies.run(PullDependencies.java:311) [druid-services-0.23.0.jar:0.23.0] at org.apache.druid.cli.Main.main(Main.java:114) [druid-services-0.23.0.jar:0.23.0] Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:459) ~[aether-impl-0.9.0.M2.jar:?] at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262) ~[aether-impl-0.9.0.M2.jar:?] at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367) ~[aether-impl-0.9.0.M2.jar:?] ... 5 more Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:449) ~[aether-impl-0.9.0.M2.jar:?] at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262) ~[aether-impl-0.9.0.M2.jar:?] at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367) ~[aether-impl-0.9.0.M2.jar:?] ... 5 more Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: org.eclipse.aether.resolution.DependencyResolutionException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.apache.druid.cli.PullDependencies.run(PullDependencies.java:335) at org.apache.druid.cli.Main.main(Main.java:114) Caused by: java.lang.RuntimeException: org.eclipse.aether.resolution.DependencyResolutionException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:420) at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:365) at org.apache.druid.cli.PullDependencies.run(PullDependencies.java:311) ... 1 more Caused by: org.eclipse.aether.resolution.DependencyResolutionException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:384) at io.tesla.aether.internal.DefaultTeslaAether.resolveArtifacts(DefaultTeslaAether.java:289) at org.apache.druid.cli.PullDependencies.downloadExtension(PullDependencies.java:407) ... 3 more Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:459) at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:262) at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:367) ... 5 more Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.apache.druid.extensionsdruid hdfs storagejar:0.23.0 at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:449) ... 7 more

https://github.com/apache/druid/issues/383 : Seems to be still OPEN and cause for this

Couple things brought to mind First: I wonder if it's happening because some deps are missing from your organization's maven repo? perhaps you can stop it from happening by adding the deps Second: I wonder if there's some way to get aether to stop doing this? the comment on the issue suggests there is. although, if certain deps really are missing from your repo, that would make dependency resolution fail anyway (with "artifact not found" instead of "timeout")