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Posted to dev@hc.apache.org by "Philipp Nanz (Jira)" <ji...@apache.org> on 2020/05/25 18:04:00 UTC
[jira] [Resolved] (HTTPCLIENT-2081) Intermittent Connection reset
errors while talking to IBM COS
[ https://issues.apache.org/jira/browse/HTTPCLIENT-2081?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Philipp Nanz resolved HTTPCLIENT-2081.
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Resolution: Not A Problem
> Intermittent Connection reset errors while talking to IBM COS
> -------------------------------------------------------------
>
> Key: HTTPCLIENT-2081
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2081
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic)
> Affects Versions: 4.5.12
> Reporter: Philipp Nanz
> Priority: Major
> Attachments: connection-reset.txt
>
>
> Hi there,
> we are currently using HttpClient for downloading blobs off IBM COS, which is basically a S3-like cloud storage.
> Sometimes we are seeing that HttpClient is giving up with "connection reset" errors after doing its retries.
> A quick Jira search showed that there were similar issues reported recently, but not investigated further (HTTPCLIENT-1954, HTTPCLIENT-2049).
> I have attached a log file including the full wire protocol.
> There is a couple of things that seems fishy: first of all, there is a read timeout being reported after 3 ms or so. On the subsequent retries, I suspect that the same connection is being reused and hence the peer sends the RST packets. But that is just my wild speculation, because I cannot read much from these logs.
> Since this is happening only ocassionally, I'm guessing at a timing related issue. Hence, my next step is to tweak the retry handler in a way that it waits for a small amount of time. I will report back my findings.
> If there is anything else you need, please let me know. I will be happy to provide anything that is necessary to further invbestigate this issue.
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