Cservenak, Tamas created HTTPCLIENT-1448:
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Summary: Add context information to INFO level logging
Key: HTTPCLIENT-1448
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1448
Project: HttpComponents HttpClient
Issue Type: Improvement
Components: HttpConn
Affects Versions: 4.2.6
Reporter: Cservenak, Tamas
Priority: Minor
In Nexus MRM HttpClient4x is used as transport. Nexus is a proxy server, hence
there is a lot of (independent) interaction of HttpClient4x with remote servers
on behalf of incoming requests. HttpClient does some INFO level logging that in
my opinion lacks some context. Typical example:
{quote}
2014-01-14 12:31:17 INFO [qtp1303027754-18064]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl - I/O
exception (org.apache.http.NoHttpResponseException) caught when processing
request: The target server failed to respond
2014-01-14 12:31:17 INFO [qtp1303027754-18064]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl -
Retrying request
2014-01-14 12:31:21 INFO [qtp1303027754-18036]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl - I/O
exception (org.apache.http.NoHttpResponseException) caught when processing
request: The target server failed to respond
2014-01-14 12:31:21 INFO [qtp1303027754-18036]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl -
Retrying request
2014-01-14 12:31:28 INFO [qtp1303027754-18036]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl - I/O
exception (org.apache.http.NoHttpResponseException) caught when processing
request: The target server failed to respond
2014-01-14 12:31:28 INFO [qtp1303027754-18036]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl -
Retrying request
2014-01-14 12:31:40 INFO [qtp1303027754-18053]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl - I/O
exception (org.apache.http.NoHttpResponseException) caught when processing
request: The target server failed to respond
2014-01-14 12:31:40 INFO [qtp1303027754-18053]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl -
Retrying request
2014-01-14 12:31:47 INFO [qtp1303027754-18060]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl - I/O
exception (org.apache.http.NoHttpResponseException) caught when processing
request: The target server failed to respond
2014-01-14 12:31:47 INFO [qtp1303027754-18060]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl -
Retrying request
2014-01-14 12:32:02 INFO [qtp1303027754-18036]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl - I/O
exception (org.apache.http.NoHttpResponseException) caught when processing
request: The target server failed to respond
2014-01-14 12:32:02 INFO [qtp1303027754-18036]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl -
Retrying request
2014-01-14 12:32:18 INFO [qtp1303027754-18059]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl - I/O
exception (org.apache.http.NoHttpResponseException) caught when processing
request: The target server failed to respond
2014-01-14 12:32:18 INFO [qtp1303027754-18059]
org.sonatype.nexus.apachehttpclient.Hc4ProviderBase$DefaultHttpClientImpl -
Retrying request
{quote}
"Muting" the logger category or raising level to WARN is not an option, as we
do not want to "mute" whole HttpClient4x.
This is emitted by DefaultRequestDirector at INFO level, but is merely a
log-spam, as it does not offer much information about actual host/target
causing it.
I'd propose to equip these messages with some technical and contextual
information. Patch will be provided in few.
Note: another option would be to just "lower" these logs (or one of the two) to
DEBUG level, and leave the "Retrying request" part but with target host added.
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