Почему я получаю сообщение «svn: connection отказано сервером»?

Question

У нас есть настройка непрерывной интеграции с TeamCity и подрывной деятельностью. TeamCity получает последний источник из svn и выполняет сборку (Visual Studio) для каждой фиксации.

Иногда возникает ошибка TeamCity при выполнении сборки. Выполнение нескольких силовых сборок позволяет TeamCity успешно работать.

**Build errors 
[12:35:24]: Patch is broken, can be found in file: C:\TeamCity\buildAgent\temp\cache\temp6036patch_803[12:35:24]: RunBuildException when running build stage UpdateSourcesFromServer: Failed to build patch for build 519 {build id=803}, VCS root: svn: https://svn.myDomain.com/repos/myApplication {id=2}, due to error: org.tmatesoft.svn.core.SVNException: svn: connection refused by the server 
svn: REPORT request failed on '/repos/myApplication/!svn/vcc/default'** 

Любые идеи, почему это может произойти?

Вот часть журнала сборки

[12:58:39]: [Updating sources: server side checkout...] Transferring cached clean patch for VCS root: [svn url] 
[12:58:40]: [Updating sources: server side checkout...] Building incremental patch over the cached patch 
[12:59:30]: [Updating sources: server side checkout...] Failed to build patch for build 146 {build id=806}, VCS root: svn: [svn url]{id=2}, due to error: org.tmatesoft.svn.core.SVNException: svn: connection refused by the server 
svn: REPORT request failed on '[svn url]!svn/vcc/default' 
[12:59:30]: [Updating sources: server side checkout...] Repository sources transferred: 14.08Mb total 
[12:59:30]: [Updating sources: server side checkout...] Average transfer speed: 280.89Kb per second 
[12:59:30]: Will repeat attempt when server will be available, number of attempts left: 2 
[12:59:40]: Updating sources: server side checkout... 


jetbrains.buildServer.agent.impl.patch.PatchDownloaderImpl$1: Server was not able to build correct patch, most likely due to VCS errors, will try again. 
jetbrains.buildServer.agent.impl.patch.PatchDownloaderImpl$1: Server was not able to build correct patch, most likely due to VCS errors, will try again. 
    at jetbrains.buildServer.agent.impl.patch.PatchDownloaderImpl.throwError(PatchDownloaderImpl.java:113) 
    at jetbrains.buildServer.agent.impl.patch.PatchDownloaderImpl.checkPatch(PatchDownloaderImpl.java:103) 
    at jetbrains.buildServer.agent.impl.patch.PatchDownloaderImpl.copyPatchAndCheck(PatchDownloaderImpl.java:64) 
    at jetbrains.buildServer.agent.impl.patch.UpdateSourcesPatcherBase.copyPatchToTempFile(UpdateSourcesPatcherBase.java:65) 
    at jetbrains.buildServer.agent.impl.patch.UpdateSourcesFromServer.updateSources(UpdateSourcesFromServer.java:58) 
    at jetbrains.buildServer.agent.impl.patch.UpdateSourcesBuildStageBase.doSourceUpdate(UpdateSourcesBuildStageBase.java:74) 
    at jetbrains.buildServer.agent.impl.patch.UpdateSourcesBuildStageBase.doRecoverableStage(UpdateSourcesBuildStageBase.java:52) 
    at jetbrains.buildServer.agent.impl.runStages.RecoverableBuildStage.doLastAttempt(RecoverableBuildStage.java:101) 
    at jetbrains.buildServer.agent.impl.runStages.RecoverableBuildStage.doBuildStage(RecoverableBuildStage.java:58) 
    at jetbrains.buildServer.agent.impl.BuildRunAction.callRunStage(BuildRunAction.java:119) 
    at jetbrains.buildServer.agent.impl.BuildRunAction.doStages(BuildRunAction.java:83) 
    at jetbrains.buildServer.agent.impl.BuildRunAction.access$000(BuildRunAction.java:18) 
    at jetbrains.buildServer.agent.impl.BuildRunAction$1.run(BuildRunAction.java:56) 
    at java.lang.Thread.run(Thread.java:595) 
Caused by: jetbrains.buildServer.vcs.patches.UnsuccessfulPatchException: Failed to build patch for build 146 {build id=806}, VCS root: svn: [svn url]{id=2}, due to error: org.tmatesoft.svn.core.SVNException: svn: connection refused by the server 
svn: REPORT request failed on '[svn url]!svn/vcc/default' 
    at jetbrains.buildServer.vcs.patches.AbstractPatcher$1.fail(AbstractPatcher.java:93) 
    at jetbrains.buildServer.vcs.patches.LowLevelPatcher.readPatchStream(LowLevelPatcher.java:156) 
    at jetbrains.buildServer.vcs.patches.LowLevelPatcher.applyPatch(LowLevelPatcher.java:79) 
    at jetbrains.buildServer.vcs.patches.AbstractPatcher.applyPatch(AbstractPatcher.java:42) 
    at jetbrains.buildServer.agent.impl.patch.PatchApplierImpl.applyPatch(PatchApplierImpl.java:18) 
    at jetbrains.buildServer.agent.impl.patch.PatchDownloaderImpl.checkPatchInFileIsCompleted(PatchDownloaderImpl.java:83) 
    at jetbrains.buildServer.agent.impl.patch.PatchDownloaderImpl.checkPatch(PatchDownloaderImpl.java:93) 
    ... 12 more 

Answer 1

От ошибки, похоже, что либо сервер SVN был недоступен или перегружен. Кроме того, если вы используете svn: externals, которые указывают на один и тот же репозиторий, я настоятельно рекомендую попробовать TeamCity 5.1 RC - в этой области есть множество исправлений, связанных с поддержкой svn + оптимизация. Кроме того, рекомендуется размещать ваши вопросы на форуме TeamCity here.