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https://issues.apache.org/jira/browse/HTTPCLIENT-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534095#comment-13534095
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Oleg Kalnichevski commented on HTTPCLIENT-1280:
-----------------------------------------------
CachingHttpClient currently does not really handle 'unhappy' cases that well,
or so it felt while I was porting it to the new API. It is pointless to fix
just one particular issue unless you would also be willing to work on fixing
exception handling in general.
Oleg
> CachingExec catches SocketTimeoutException silently and closes the backend
> InputStream
> --------------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-1280
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1280
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: Cache
> Affects Versions: 4.2.2, 4.2.3, Snapshot
> Reporter: Francois-Xavier Bonnet
> Fix For: 4.3 Alpha1
>
> Attachments: HTTP-1280.txt
>
>
> When a SocketTimeoutException occurs, CachingExec catches and logs it, then
> closes the Inputstream:
> 11-12 08:23:18 10010 [qtp907773188-11] WARN
> org.apache.http.impl.client.cache.CachingHttpClient - Unable to store entries
> in cache
> java.net.SocketTimeoutException: Read timed out
> at java.net.SocketInputStream.socketRead0(Native Method)
> at java.net.SocketInputStream.read(SocketInputStream.java:150)
> at java.net.SocketInputStream.read(SocketInputStream.java:121)
> at
> org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:204)
> at
> org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:177)
> at
> org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:201)
> at
> org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:155)
> at
> org.apache.http.impl.client.cache.HeapResourceFactory.generate(HeapResourceFactory.java:54)
> at
> org.apache.http.impl.client.cache.SizeLimitedResponseReader.doConsume(SizeLimitedResponseReader.java:103)
> at
> org.apache.http.impl.client.cache.SizeLimitedResponseReader.readResponse(SizeLimitedResponseReader.java:75)
> at
> org.apache.http.impl.client.cache.BasicHttpCache.cacheAndReturnResponse(BasicHttpCache.java:241)
> at
> org.apache.http.impl.client.cache.CachingHttpClient.handleBackendResponse(CachingHttpClient.java:916)
> at
> org.apache.http.impl.client.cache.CachingHttpClient.callBackend(CachingHttpClient.java:729)
> at
> org.apache.http.impl.client.cache.CachingHttpClient.handleCacheMiss(CachingHttpClient.java:508)
> at
> org.apache.http.impl.client.cache.CachingHttpClient.execute(CachingHttpClient.java:436)
> at
> org.esigate.cache.CacheAdapter$HttpClientWrapper.execute(CacheAdapter.java:123)
> Then there is no way for the code to know that a problem occurred and if you
> try to read the entity you get another Exception:
> java.net.SocketException: Socket closed
> at java.net.SocketInputStream.socketRead0(Native Method)
> at java.net.SocketInputStream.read(SocketInputStream.java:150)
> at java.net.SocketInputStream.read(SocketInputStream.java:121)
> at
> org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166)
> at
> org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:90)
> at
> org.apache.http.impl.io.AbstractSessionInputBuffer.read(AbstractSessionInputBuffer.java:183)
> at
> org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:140)
> at
> org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:121)
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