Philipp Nanz created HTTPCLIENT-2081:
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Summary: 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
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). Hemce, 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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