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Re: [p2-dev] http instabilities

Hi Helmut,

Haigermoser, Helmut wrote:
Ciao Scott :)
I was hoping you were gonna say that, so the new default is not the
UrlConnectionRetrieveFileTransfer.
Hm, we did not explicitely specify any file transfer, so this might be
about including a new plug-in in our product,
or a property we need to set in config.ini/pluginCustomization.ini?

Yes...if you want your product to include httpclient provider it needs to be included in your feature/product...as it is in Eclipse. Here are the references to either an existing map file that you can use in your build [1] if you choose to use a pre-built version of these plugins, or a feature that has all of the relevant plugins [2]...if you would rather build these plugins yourself.


Well, we are trying to download artifacts, the one that failed was only
2k so the size seems not to be terribly important (we have
giga-artifacts as well). Simple http downloads work whenever I try
them...

Hmm. Interesting...this may indicate a new/previously unidentified problem with the URLConnection-based provider (or the JRE underneath it). Would you please open a bug to that effect against the ecf.filetransfer component and include reproduce information (e.g. public server if possible)? Just to be clear, I expect that if the httpclient provider is included as described above that this issue should go away for you, but I would like to get a bug opened for this issue in any case (so that the JRE provider issue can be followed up on/addressed).


Thanks...Again I suspect that the httpclient provider will not show these issues, but please keep notified one way or another.

Scott


[1] http://www.eclipse.org/external/rt/ecf/integration/v20090616-0832/ecf.filetransfer.map -- this is a map file fragment for Eclipse 3.5.0 release
[2] CVS: dev.eclipse.org:/cvsroot/rt org.eclipse.ecf/releng/features/org.eclipse.ecf.platform-feature


Let me know what you need to better be able to help me, we have seen
issues with a publicly available amazon location as well so that you
could try yourselves...

TIA,
Ciao, hh


-----Original Message----- From: p2-dev-bounces@xxxxxxxxxxx [mailto:p2-dev-bounces@xxxxxxxxxxx] On Behalf Of Scott Lewis Sent: Friday, August 28, 2009 5:19 PM To: P2 developer discussions Subject: Re: [p2-dev] http instabilities

Hi Helmut,

Could you describe a little more what is happening?  Is the server you
are trying to reach slow or unreliable?  From the stack trace, you are
apparently getting a read time out...which is typically caused because
the server on the other end is not responding properly (or network
partition).  Is the server/file being accessed publicly available?  If
so please make it known and we can/will give it a try.  Presumably
you've tried to access the resource via a web browser and everything is
fine with that.

I see you are using the JRE provider...i.e. the
UrlConnectionRetrieveFileTransfer class in stack below.  Are you using
this because you are behind an NTLMv2 network? (as opposed to the
httpclient provider, which is the default one for Eclipse 3.5).  Or some
other reason?

Thanks,

Scott


Haigermoser, Helmut wrote:
Ciao P2 :)
We recently had a surge of problems updating our products, using standard p2/ecf technologies, I'm hoping you've seen these and can point us at options to tweak the bevaviour to get by such issues...


Here is the backtrace for our 3.5-based product:

!ENTRY org.eclipse.equinox.p2.repository 4 1002 2009-08-28 16:55:00.873 !MESSAGE Unable to read repository at http://<path to artifact> !STACK 0
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at
java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at
java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at
java.io.BufferedInputStream.read(BufferedInputStream.java:317)
at
sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:687)
at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:632)
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConn
ec
tion.java:1000)
at
org.eclipse.ecf.provider.filetransfer.retrieve.UrlConnectionRetrieveFi
le
Transfer.getDecompressedStream(UrlConnectionRetrieveFileTransfer.java:
46
2)
at
org.eclipse.ecf.provider.filetransfer.retrieve.UrlConnectionRetrieveFi
le
Transfer.openStreams(UrlConnectionRetrieveFileTransfer.java:287)
at
org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTra
ns
fer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:808)
at
org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTra
ns
fer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:506)
at
org.eclipse.ecf.provider.filetransfer.retrieve.MultiProtocolRetrieveAd
ap
ter.sendRetrieveRequest(MultiProtocolRetrieveAdapter.java:98)
at
org.eclipse.equinox.internal.p2.repository.FileReader.sendRetrieveRequ
es
t(FileReader.java:317)
at
org.eclipse.equinox.internal.p2.repository.FileReader.readInto(FileRea
de
r.java:263)
at
org.eclipse.equinox.internal.p2.repository.RepositoryTransport.downloa
d(
RepositoryTransport.java:70)
at
org.eclipse.equinox.internal.p2.repository.RepositoryTransport.downloa
d(
RepositoryTransport.java:121)
at
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtif
ac
tRepository.downloadArtifact(SimpleArtifactRepository.java:472)
at
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtif
ac
tRepository.downloadArtifact(SimpleArtifactRepository.java:455)
at
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtif
ac
tRepository.getArtifact(SimpleArtifactRepository.java:522)
at
org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.getA
rt
ifact(MirrorRequest.java:200)
at
org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.tran
sf
erSingle(MirrorRequest.java:175)
at
org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.tran
sf
er(MirrorRequest.java:159)
at
org.eclipse.equinox.internal.p2.artifact.repository.MirrorRequest.perf
or
m(MirrorRequest.java:95)
at
org.eclipse.equinox.internal.p2.artifact.repository.simple.SimpleArtif
ac
tRepository.getArtifact(SimpleArtifactRepository.java:511)
at
org.eclipse.equinox.internal.p2.artifact.repository.simple.DownloadJob
.r
un(DownloadJob.java:64)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)


TIA,
Ciao, hh
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