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Bug
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    Resolution: Duplicate
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Minor
 
(Unsure about the component.)
I triggered an organization scan for https://ci.jenkins.io/job/Plugins today and checked just now: It seems to have failed due to a transient network issue. Tail of the log:
Examining jenkinsci/groovy-postbuild-plugin
  Checking branches...
10:06:47 GitHub API Usage: Current quota has 3717 remaining (17 under budget). Next quota of 5000 in 55 min
  Getting remote branches...
    Checking branch master
      ‘Jenkinsfile’ not found
    Does not meet criteria
10:06:47 GitHub API Usage: Current quota has 3714 remaining (14 under budget). Next quota of 5000 in 55 min
    Checking branch recovery
      ‘Jenkinsfile’ not found
    Does not meet criteria
10:06:47 GitHub API Usage: Current quota has 3712 remaining (12 under budget). Next quota of 5000 in 55 min
    Checking branch svn
ERROR: [Thu Oct 05 10:06:57 GMT 2017] Could not fetch sources from navigator org.jenkinsci.plugins.github_branch_source.GitHubSCMNavigator@23da58dd
java.net.SocketException: Socket closed
	at java.net.SocketInputStream.read(SocketInputStream.java:204)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
	at sun.security.ssl.InputRecord.read(InputRecord.java:503)
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930)
	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
	at okio.Okio$2.read(Okio.java:139)
	at okio.AsyncTimeout$2.read(AsyncTimeout.java:211)
Caused: java.net.SocketTimeoutException: timeout
	at okio.Okio$3.newTimeoutException(Okio.java:207)
	at okio.AsyncTimeout.exit(AsyncTimeout.java:261)
	at okio.AsyncTimeout$2.read(AsyncTimeout.java:215)
	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:306)
	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:300)
	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:196)
	at com.squareup.okhttp.internal.http.Http1xStream.readResponse(Http1xStream.java:186)
	at com.squareup.okhttp.internal.http.Http1xStream.readResponseHeaders(Http1xStream.java:127)
	at com.squareup.okhttp.internal.http.HttpEngine.readNetworkResponse(HttpEngine.java:737)
	at com.squareup.okhttp.internal.http.HttpEngine.readResponse(HttpEngine.java:609)
	at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:460)
	at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:399)
	at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:527)
	at com.squareup.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode(DelegatingHttpsURLConnection.java:105)
	at com.squareup.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:25)
	at org.kohsuke.github.Requester.parse(Requester.java:592)
Caused: org.kohsuke.github.HttpException: Server returned HTTP response code: -1, message: 'null' for URL: https://api.github.com/repos/jenkinsci/groovy-postbuild-plugin/contents/?ref=refs%2Fheads%2Fsvn
	at org.kohsuke.github.Requester.parse(Requester.java:622)
	at org.kohsuke.github.Requester.parse(Requester.java:620)
	at org.kohsuke.github.Requester.parse(Requester.java:620)
	at org.kohsuke.github.Requester.parse(Requester.java:584)
	at org.kohsuke.github.Requester._to(Requester.java:264)
	at org.kohsuke.github.Requester.to(Requester.java:226)
	at org.kohsuke.github.GHRepository.getDirectoryContent(GHRepository.java:1299)
	at org.jenkinsci.plugins.github_branch_source.GitHubSCMProbe.stat(GitHubSCMProbe.java:131)
	at org.jenkinsci.plugins.workflow.multibranch.WorkflowBranchProjectFactory$1.isHead(WorkflowBranchProjectFactory.java:74)
	at jenkins.scm.api.trait.SCMSourceRequest.process(SCMSourceRequest.java:344)
	at jenkins.scm.api.trait.SCMSourceRequest.process(SCMSourceRequest.java:251)
	at org.jenkinsci.plugins.github_branch_source.GitHubSCMSource.retrieve(GitHubSCMSource.java:875)
	at jenkins.scm.api.SCMSource._retrieve(SCMSource.java:355)
	at jenkins.scm.api.SCMSource.fetch(SCMSource.java:309)
	at jenkins.branch.MultiBranchProjectFactory$BySCMSourceCriteria.recognizes(MultiBranchProjectFactory.java:263)
	at jenkins.branch.OrganizationFolder$SCMSourceObserverImpl$1.recognizes(OrganizationFolder.java:1297)
	at jenkins.branch.OrganizationFolder$SCMSourceObserverImpl$1.complete(OrganizationFolder.java:1312)
	at jenkins.scm.api.trait.SCMNavigatorRequest.process(SCMNavigatorRequest.java:256)
	at jenkins.scm.api.trait.SCMNavigatorRequest.process(SCMNavigatorRequest.java:206)
	at org.jenkinsci.plugins.github_branch_source.GitHubSCMNavigator.visitSources(GitHubSCMNavigator.java:961)
	at jenkins.branch.OrganizationFolder.computeChildren(OrganizationFolder.java:412)
	at com.cloudbees.hudson.plugins.folder.computed.ComputedFolder.updateChildren(ComputedFolder.java:276)
	at com.cloudbees.hudson.plugins.folder.computed.FolderComputation.run(FolderComputation.java:165)
	at jenkins.branch.OrganizationFolder$OrganizationScan.run(OrganizationFolder.java:863)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:419)
[Thu Oct 05 10:06:57 GMT 2017] Finished organization scan. Scan took 51 min
FATAL: Failed to recompute children of Plugins
org.kohsuke.github.HttpException: Server returned HTTP response code: -1, message: 'null' for URL: https://api.github.com/repos/jenkinsci/groovy-postbuild-plugin/contents/?ref=refs%2Fheads%2Fsvn
	at org.kohsuke.github.Requester.parse(Requester.java:622)
	at org.kohsuke.github.Requester.parse(Requester.java:620)
	at org.kohsuke.github.Requester.parse(Requester.java:620)
	at org.kohsuke.github.Requester.parse(Requester.java:584)
	at org.kohsuke.github.Requester._to(Requester.java:264)
	at org.kohsuke.github.Requester.to(Requester.java:226)
	at org.kohsuke.github.GHRepository.getDirectoryContent(GHRepository.java:1299)
	at org.jenkinsci.plugins.github_branch_source.GitHubSCMProbe.stat(GitHubSCMProbe.java:131)
	at org.jenkinsci.plugins.workflow.multibranch.WorkflowBranchProjectFactory$1.isHead(WorkflowBranchProjectFactory.java:74)
	at jenkins.scm.api.trait.SCMSourceRequest.process(SCMSourceRequest.java:344)
	at jenkins.scm.api.trait.SCMSourceRequest.process(SCMSourceRequest.java:251)
	at org.jenkinsci.plugins.github_branch_source.GitHubSCMSource.retrieve(GitHubSCMSource.java:875)
	at jenkins.scm.api.SCMSource._retrieve(SCMSource.java:355)
	at jenkins.scm.api.SCMSource.fetch(SCMSource.java:309)
	at jenkins.branch.MultiBranchProjectFactory$BySCMSourceCriteria.recognizes(MultiBranchProjectFactory.java:263)
	at jenkins.branch.OrganizationFolder$SCMSourceObserverImpl$1.recognizes(OrganizationFolder.java:1297)
	at jenkins.branch.OrganizationFolder$SCMSourceObserverImpl$1.complete(OrganizationFolder.java:1312)
	at jenkins.scm.api.trait.SCMNavigatorRequest.process(SCMNavigatorRequest.java:256)
	at jenkins.scm.api.trait.SCMNavigatorRequest.process(SCMNavigatorRequest.java:206)
	at org.jenkinsci.plugins.github_branch_source.GitHubSCMNavigator.visitSources(GitHubSCMNavigator.java:961)
	at jenkins.branch.OrganizationFolder.computeChildren(OrganizationFolder.java:412)
	at com.cloudbees.hudson.plugins.folder.computed.ComputedFolder.updateChildren(ComputedFolder.java:276)
	at com.cloudbees.hudson.plugins.folder.computed.FolderComputation.run(FolderComputation.java:165)
	at jenkins.branch.OrganizationFolder$OrganizationScan.run(OrganizationFolder.java:863)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:419)
Caused by: java.net.SocketTimeoutException: timeout
	at okio.Okio$3.newTimeoutException(Okio.java:207)
	at okio.AsyncTimeout.exit(AsyncTimeout.java:261)
	at okio.AsyncTimeout$2.read(AsyncTimeout.java:215)
	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:306)
	at okio.RealBufferedSource.indexOf(RealBufferedSource.java:300)
	at okio.RealBufferedSource.readUtf8LineStrict(RealBufferedSource.java:196)
	at com.squareup.okhttp.internal.http.Http1xStream.readResponse(Http1xStream.java:186)
	at com.squareup.okhttp.internal.http.Http1xStream.readResponseHeaders(Http1xStream.java:127)
	at com.squareup.okhttp.internal.http.HttpEngine.readNetworkResponse(HttpEngine.java:737)
	at com.squareup.okhttp.internal.http.HttpEngine.readResponse(HttpEngine.java:609)
	at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:460)
	at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:399)
	at com.squareup.okhttp.internal.huc.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:527)
	at com.squareup.okhttp.internal.huc.DelegatingHttpsURLConnection.getResponseCode(DelegatingHttpsURLConnection.java:105)
	at com.squareup.okhttp.internal.huc.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:25)
	at org.kohsuke.github.Requester.parse(Requester.java:592)
	... 23 more
Caused by: java.net.SocketException: Socket closed
	at java.net.SocketInputStream.read(SocketInputStream.java:204)
	at java.net.SocketInputStream.read(SocketInputStream.java:141)
	at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
	at sun.security.ssl.InputRecord.read(InputRecord.java:503)
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
	at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930)
	at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
	at okio.Okio$2.read(Okio.java:139)
	at okio.AsyncTimeout$2.read(AsyncTimeout.java:211)
	... 36 more
Finished: FAILURE
This should be made more robust, e.g. reattempt after a minute or so, and only abort if multiple failures occurred. Especially for large orgs with many potentially included plugins such as jenkinsci/ and the '.*-plugin' repo match, scans take forever, and should be more robust against errors.
- duplicates
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JENKINS-45142 Appears a timeout isn't being handled properly: "Server returned HTTP response code: -1, message: 'null' for URL"
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 - In Review
 
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