Hey folks I think David (dajac) has some fixes lined-up to improve CI such as https://github.com/apache/kafka/pull/15063 and https://github.com/apache/kafka/pull/15062.
I have some bandwidth for the next two days to work on fixing the CI. Let me start by taking a look at the list that Sophie shared here. -- Divij Vaidya On Fri, Dec 22, 2023 at 2:05 PM Luke Chen <show...@gmail.com> wrote: > Hi Sophie and Philip and all, > > I share the same pain as you. > I've been waiting for a CI build result in a PR for days. Unfortunately, I > can only get 1 result each day because it takes 8 hours for each run, and > with failed results. :( > > I've looked into the 8 hour timeout build issue and would like to propose > to set a global test timeout as 10 mins using the junit5 feature > < > https://junit.org/junit5/docs/current/user-guide/#writing-tests-declarative-timeouts-default-timeouts > > > . > This way, we can fail those long running tests quickly without impacting > other tests. > PR: https://github.com/apache/kafka/pull/15065 > I've tested in my local environment and it works as expected. > > Any feedback is welcome. > > Thanks. > Luke > > On Fri, Dec 22, 2023 at 8:08 AM Philip Nee <philip...@gmail.com> wrote: > > > Hey Sophie - I've gotten 2 inflight PRs each with more than 15 retries... > > Namely: https://github.com/apache/kafka/pull/15023 and > > https://github.com/apache/kafka/pull/15035 > > > > justin filed a flaky test report here though: > > https://issues.apache.org/jira/browse/KAFKA-16045 > > > > P > > > > On Thu, Dec 21, 2023 at 3:18 PM Sophie Blee-Goldman < > sop...@responsive.dev > > > > > wrote: > > > > > On a related note, has anyone else had trouble getting even a single > run > > > with no build failures lately? I've had multiple pure-docs PRs blocked > > for > > > days or even weeks because of miscellaneous infra, test, and timeout > > > failures. I know we just had a discussion about whether it's acceptable > > to > > > ever merge with a failing build, and the consensus (which I agree with) > > was > > > NO -- but seriously, this is getting ridiculous. The build might be the > > > worst I've ever seen it, and it just makes it really difficult to > > maintain > > > good will with external contributors. > > > > > > Take for example this small docs PR: > > > https://github.com/apache/kafka/pull/14949 > > > > > > It's on its 7th replay, with the first 6 runs all having (at least) one > > > build that failed completely. The issues I saw on this one PR are a > good > > > summary of what I've been seeing elsewhere, so here's the briefing: > > > > > > 1. gradle issue: > > > > > > > * What went wrong: > > > > > > > > Gradle could not start your build. > > > > > > > > > Cannot create service of type BuildSessionActionExecutor using > method > > > > > > LauncherServices$ToolingBuildSessionScopeServices.createActionExecutor() > > > as > > > > there is a problem with parameter #21 of type > > > FileSystemWatchingInformation. > > > > > > > > > Cannot create service of type > BuildLifecycleAwareVirtualFileSystem > > > > using method > > > > > > > > > > VirtualFileSystemServices$GradleUserHomeServices.createVirtualFileSystem() > > > > as there is a problem with parameter #7 of type GlobalCacheLocations. > > > > > Cannot create service of type GlobalCacheLocations using > method > > > > GradleUserHomeScopeServices.createGlobalCacheLocations() as there is > a > > > > problem with parameter #1 of type List<GlobalCache>. > > > > > Could not create service of type FileAccessTimeJournal > using > > > > GradleUserHomeScopeServices.createFileAccessTimeJournal(). > > > > > Timeout waiting to lock journal cache > > > > (/home/jenkins/.gradle/caches/journal-1). It is currently in use by > > > another > > > > Gradle instance. > > > > > > > > > > 2. git issue: > > > > > > > ERROR: Error cloning remote repo 'origin' > > > > hudson.plugins.git.GitException: java.io.IOException: Remote call on > > > > builds43 failed > > > > > > > > > 3. storage test calling System.exit (I think) > > > > > > > * What went wrong: > > > > Execution failed for task ':storage:test'. > > > > > Process 'Gradle Test Executor 73' finished with non-zero exit > value > > 1 > > > > > > This problem might be caused by incorrect test process > configuration. > > > > > > > > > 4. 3/4 builds aborted suddenly for no clear reason > > > > > > 5. 1 build was aborted, 1 build failed due to a gradle(?) issue with a > > > storage test: > > > > > > Failed to map supported failure 'org.opentest4j.AssertionFailedError: > > > > Failed to observe commit callback before timeout' with mapper > > > > > > > > > > 'org.gradle.api.internal.tasks.testing.failure.mappers.OpenTestAssertionFailedMapper@38bb78ea > > > ': > > > > null > > > > > > > > > > > > * What went wrong: > > > > Execution failed for task ':storage:test'. > > > > > Process 'Gradle Test Executor 73' finished with non-zero exit > value 1 > > > > This problem might be caused by incorrect test process > configuration. > > > > > > > > > > 6. Unknown issue with a core test: > > > > > > > Unexpected exception thrown. > > > > org.gradle.internal.remote.internal.MessageIOException: Could not > read > > > > message from '/127.0.0.1:46952'. > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.inet.SocketConnection.receive(SocketConnection.java:94) > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.hub.MessageHub$ConnectionReceive.run(MessageHub.java:270) > > > > at > > > > > > > > > > org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64) > > > > at > > > > > > > > > > org.gradle.internal.concurrent.AbstractManagedExecutor$1.run(AbstractManagedExecutor.java:47) > > > > at > > > > > > > > > > java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) > > > > at > > > > > > > > > > java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) > > > > at java.base/java.lang.Thread.run(Thread.java:1583) > > > > Caused by: java.lang.IllegalArgumentException > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.hub.InterHubMessageSerializer$MessageReader.read(InterHubMessageSerializer.java:72) > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.hub.InterHubMessageSerializer$MessageReader.read(InterHubMessageSerializer.java:52) > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.inet.SocketConnection.receive(SocketConnection.java:81) > > > > ... 6 more > > > > org.gradle.internal.remote.internal.ConnectException: Could not > connect > > > to > > > > server [1d62bf97-6a3e-441d-93b6-093617cbbea9 port:41289, addresses:[/ > > > > 127.0.0.1]]. Tried addresses: [/127.0.0.1]. > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.inet.TcpOutgoingConnector.connect(TcpOutgoingConnector.java:67) > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.hub.MessageHubBackedClient.getConnection(MessageHubBackedClient.java:36) > > > > at > > > > > > > > > > org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:103) > > > > at > > > > > > > > > > org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65) > > > > at > > > > > > > > > > worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) > > > > at > > > > > > > > > > worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74) > > > > Caused by: java.net.ConnectException: Connection refused > > > > at java.base/sun.nio.ch.Net.pollConnect(Native Method) > > > > at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:682) > > > > at > > > > java.base/sun.nio.ch > > > .SocketChannelImpl.finishTimedConnect(SocketChannelImpl.java:1191) > > > > at > > > > java.base/sun.nio.ch > > > .SocketChannelImpl.blockingConnect(SocketChannelImpl.java:1233) > > > > at java.base/sun.nio.ch > > .SocketAdaptor.connect(SocketAdaptor.java:102) > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.inet.TcpOutgoingConnector.tryConnect(TcpOutgoingConnector.java:81) > > > > at > > > > > > > > > > org.gradle.internal.remote.internal.inet.TcpOutgoingConnector.connect(TcpOutgoingConnector.java:54) > > > > ... 5 more > > > > > > > > > > > > > > > > > * What went wrong: > > > > > > Execution failed for task ':core:test'. > > > > > > > Process 'Gradle Test Executor 104' finished with non-zero exit value > 1 > > > > > > This problem might be caused by incorrect test process configuration. > > > > > > > > > I've seen almost all of the above issues multiple times, so it might > be a > > > good list to start with to focus any efforts on improving the build. > That > > > said, I'm not sure what we can really do about most of these, and not > > sure > > > how to narrow down the root cause in the more mysterious cases of > aborted > > > builds and the builds that end with "finished with non-zero exit value > 1 > > " > > > with no additional context (that I could find) > > > > > > If nothing else, there seems to be something happening in one (or more) > > of > > > the storage tests, because by far the most common failure I've seen is > > that > > > in 3 & 5. Unfortunately it's not really clear to me how to tell which > is > > > the offending test, so I'm not even sure what to file a ticket for > > > > > > On Tue, Dec 19, 2023 at 11:55 PM David Jacot > <dja...@confluent.io.invalid > > > > > > wrote: > > > > > > > The slowness of the CI is definitely causing us a lot of pain. I > wonder > > > if > > > > we should move to a dedicated CI infrastructure for Kafka. Our > > > integration > > > > tests are quite heavy and ASF's CI is not really tuned for them. We > > could > > > > tune it for our needs and this would also allow external companies to > > > > sponsor more workers. I heard that we have a few cloud providers in > > > > the community ;). I think that we should consider this. What do you > > > think? > > > > I already discussed this with the INFRA team. I could continue if we > > > > believe that it is a way forward. > > > > > > > > Best, > > > > David > > > > > > > > On Wed, Dec 20, 2023 at 12:17 AM Stanislav Kozlovski > > > > <stanis...@confluent.io.invalid> wrote: > > > > > > > > > Hey Николай, > > > > > > > > > > Apologies about this - I wasn't aware of this behavior. I have made > > all > > > > the > > > > > gists public. > > > > > > > > > > > > > > > > > > > > On Wed, Dec 20, 2023 at 12:09 AM Greg Harris > > > > <greg.har...@aiven.io.invalid > > > > > > > > > > > wrote: > > > > > > > > > > > Hey Stan, > > > > > > > > > > > > Thanks for opening the discussion. I haven't been looking at > > overall > > > > > > build duration recently, so it's good that you are calling it > out. > > > > > > > > > > > > I worry about us over-indexing on this one build, which itself > > > appears > > > > > > to be an outlier. I only see one other build [1] above 6h overall > > in > > > > > > the last 90 days in this view: [2] > > > > > > And I don't see any overlap of failed tests in these two builds, > > > which > > > > > > makes it less likely that these particular failed tests are the > > > causes > > > > > > of long build times. > > > > > > > > > > > > Separately, I've been investigating build environment slowness, > and > > > > > > trying to connect it with test failures [3]. I observed that the > CI > > > > > > build environment is 2-20 times slower than my developer machine > > (M1 > > > > > > mac). > > > > > > When I simulate a similar slowdown locally, there are tests which > > > > > > become significantly more flakey, often due to hard-coded > timeouts. > > > > > > I think that these particularly nasty builds could be explained > by > > > > > > long-tail slowdowns causing arbitrary tests to take an excessive > > time > > > > > > to execute. > > > > > > > > > > > > Rather than trying to find signals in these rare test failures, I > > > > > > think we should find tests that have these sorts of failures more > > > > > > regularly. > > > > > > There are lots of builds in the 5-6h duration bracket, which is > > > > > > certainly unacceptably long. We should look into these builds to > > find > > > > > > improvements and optimizations. > > > > > > > > > > > > [1] https://ge.apache.org/s/ygh4gbz4uma6i/ > > > > > > [2] > > > > > > > > > > > > > > > > > > > > > https://ge.apache.org/scans?list.sortColumn=buildDuration&search.relativeStartTime=P90D&search.rootProjectNames=kafka&search.tags=trunk&search.timeZoneId=America%2FNew_York > > > > > > [3] https://github.com/apache/kafka/pull/15008 > > > > > > > > > > > > Thanks for looking into this! > > > > > > Greg > > > > > > > > > > > > On Tue, Dec 19, 2023 at 3:45 PM Николай Ижиков < > > nizhi...@apache.org> > > > > > > wrote: > > > > > > > > > > > > > > Hello, Stanislav. > > > > > > > > > > > > > > Can you, please, make the gist public. > > > > > > > Private gists not available for some GitHub users even if link > > are > > > > > known. > > > > > > > > > > > > > > > 19 дек. 2023 г., в 17:33, Stanislav Kozlovski < > > > > > stanis...@confluent.io.INVALID> > > > > > > написал(а): > > > > > > > > > > > > > > > > Hey everybody, > > > > > > > > I've heard various complaints that build times in trunk are > > > taking > > > > > too > > > > > > > > long, some taking as much as 8 hours (the timeout) - and this > > is > > > > > > slowing us > > > > > > > > down from being able to meet the code freeze deadline for > 3.7. > > > > > > > > > > > > > > > > I took it upon myself to gather up some data in Gradle > > Enterprise > > > > to > > > > > > see if > > > > > > > > there are any outlier tests that are causing this slowness. > > Turns > > > > out > > > > > > there > > > > > > > > are a few, in this particular build - > > > > > > https://ge.apache.org/s/un2hv7n6j374k/ > > > > > > > > - which took 10 hours and 29 minutes in total. > > > > > > > > > > > > > > > > I have compiled the tests that took a disproportionately > large > > > > amount > > > > > > of > > > > > > > > time (20m+), alongside their time, error message and a link > to > > > > their > > > > > > full > > > > > > > > log output here - > > > > > > > > > > > > > > > > > > > > > > > > > > > > > https://gist.github.com/stanislavkozlovski/8959f7ee59434f774841f4ae2f5228c2 > > > > > > > > > > > > > > > > It includes failures from core, streams, storage and clients. > > > > > > > > Interestingly, some other tests that don't fail also take a > > long > > > > time > > > > > > in > > > > > > > > what is apparently the test harness framework. See the gist > for > > > > more > > > > > > > > information. > > > > > > > > > > > > > > > > I am starting this thread with the intention of getting the > > > > > discussion > > > > > > > > started and brainstorming what we can do to get the build > times > > > > back > > > > > > under > > > > > > > > control. > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > > Best, > > > > > > > > Stanislav > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Best, > > > > > Stanislav > > > > > > > > > > > > > > >
