Andrey,
Thanks for the response!
These are definitely in the platform's build logs, e.g., this one always
has such entries:
https://ci.eclipse.org/platform/job/eclipse.platform.ui-Gerrit/lastSuccessfulBuild/consoleFull
I too get the sense that this is a new/recent thing. I thought maybe a
new version of httpclient was to blame, but I have the same problem in
an older environment with an older version of httpclient, and I
definitely *did not *have this highly reproducible problem a few months
ago when I was using that older environment regularly.
Regards,
Ed
On 04.03.2020 13:41, Andrey Loskutov wrote:
Some time ago I've also stumbled over it while meditating over maven
build logs:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=558976
I *believe* I haven't seen such errors before, and I *believe* this
could be due infrastructure changes we had recently.
Kind regards,
Andrey Loskutov
Спасение утопающих - дело рук самих утопающих
https://www.eclipse.org/user/aloskutov
*Gesendet:* Mittwoch, 04. März 2020 um 13:31 Uhr
*Von:* "Ed Merks" <ed.me...@gmail.com>
*An:* "Eclipse platform general developers list."
<platform-dev@eclipse.org>
*Betreff:* [platform-dev] Concerns about
org.eclipse.ecf.provider.filetransfer.httpclient45
Hi,
I don't know how many of you have noticed things like this in the
build logs:
*12:25:45* Mar 04, 2020 11:25:45 AM org.apache.http.impl.execchain.RetryExec execute*12:25:45* INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when processing request to {s}->https://download.eclipse.org:443: The target server failed to respond*12:25:45* Mar 04, 2020 11:25:45 AM org.apache.http.impl.execchain.RetryExec execute*12:25:45* INFO: Retrying request to {s}->https://download.eclipse.org:443
I'm a bit concerned about the cause of such exceptions. I've debugged
where this happens in my Oomph environment. Specifically it happens
in org.apache.http.impl.execchain.RetryExec.execute(HttpRoute,
HttpRequestWrapper, HttpClientContext, HttpExecutionAware) when
parsing the response header finds nothing with the following stack
leading to the logged problem:
org.apache.http.NoHttpResponseException.<init>(java.lang.String) line: 47
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(org.apache.http.io.SessionInputBuffer)
line: 141
org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(org.apache.http.io.SessionInputBuffer)
line: 56
org.apache.http.impl.conn.DefaultHttpResponseParser(org.apache.http.impl.io.AbstractMessageParser<T>).parse()
line: 259
org.apache.http.impl.conn.LoggingManagedHttpClientConnection(org.apache.http.impl.DefaultBHttpClientConnection).receiveResponseHeader()
line: 163
org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader() line: 157
org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(org.apache.http.HttpRequest,
org.apache.http.HttpClientConnection,
org.apache.http.protocol.HttpContext) line: 273
org.apache.http.protocol.HttpRequestExecutor.execute(org.apache.http.HttpRequest,
org.apache.http.HttpClientConnection,
org.apache.http.protocol.HttpContext) line: 125
org.apache.http.impl.execchain.MainClientExec.execute(org.apache.http.conn.routing.HttpRoute,
org.apache.http.client.methods.HttpRequestWrapper,
org.apache.http.client.protocol.HttpClientContext,
org.apache.http.client.methods.HttpExecutionAware) line: 272
org.apache.http.impl.execchain.ProtocolExec.execute(org.apache.http.conn.routing.HttpRoute,
org.apache.http.client.methods.HttpRequestWrapper,
org.apache.http.client.protocol.HttpClientContext,
org.apache.http.client.methods.HttpExecutionAware) line: 186
org.apache.http.impl.execchain.RetryExec.execute(org.apache.http.conn.routing.HttpRoute,
org.apache.http.client.methods.HttpRequestWrapper,
org.apache.http.client.protocol.HttpClientContext,
org.apache.http.client.methods.HttpExecutionAware) line: 89
org.apache.http.impl.execchain.RedirectExec.execute(org.apache.http.conn.routing.HttpRoute,
org.apache.http.client.methods.HttpRequestWrapper,
org.apache.http.client.protocol.HttpClientContext,
org.apache.http.client.methods.HttpExecutionAware) line: 110
org.apache.http.impl.client.InternalHttpClient.doExecute(org.apache.http.HttpHost,
org.apache.http.HttpRequest, org.apache.http.protocol.HttpContext)
line: 185
org.apache.http.impl.client.InternalHttpClient(org.apache.http.impl.client.CloseableHttpClient).execute(org.apache.http.client.methods.HttpUriRequest,
org.apache.http.protocol.HttpContext) line: 83
org.eclipse.ecf.provider.filetransfer.httpclient45.HttpClientFileSystemBrowser.runRequest()
line: 246
org.eclipse.ecf.provider.filetransfer.browse.AbstractFileSystemBrowser$DirectoryJob.run(org.eclipse.core.runtime.IProgressMonitor)
line: 69
org.eclipse.core.internal.jobs.Worker.run() line: 63
There will be two additional retries, and if those fail too, the
repository will fail to load (or the artifact will fail to
download). In my product catalog generator, I load a whole whack of
repositories and this happens frequently enough that more often than
not, one or more repositories fail to load. This concerns me because
with 2 million users loading repositories (via updates or via the
installer), a significant fraction might well run into this same problem.
When I use
-Dorg.eclipse.ecf.provider.filetransfer.excludeContributors=org.eclipse.ecf.provider.filetransfer.httpclient45
to disable the provider for this implementation, I of course see no
log entries nor do any repositories fail to load.
I'm starting to get the feeling that either a) the server is
ill-behaved or b) there is a problem in the httpclient
implementation. Perhaps some Keep-Alive header: is poor or not being
respected by the implementation.
I saw something similar here where the server was blamed:
https://support.sonatype.com/hc/en-us/articles/213465028-Understanding-The-target-server-failed-to-respond-in-Nexus-logs
Does anyone have any ideas?
Regards,
Ed
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