[
https://issues.apache.org/jira/browse/KNOX-784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16685590#comment-16685590
]
Kevin Risden commented on KNOX-784:
-----------------------------------
So the connection pool is per topology per service. This means the attached
patch doesn't work if multiple services in the same topology are called.
Working on namespacing the metrics by service name in addition to the topology
name.
> java.lang.IllegalArgumentException: A metric named
> org.apache.http.conn.HttpClientConnectionManager.available-connections
> already exists
> -----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KNOX-784
> URL: https://issues.apache.org/jira/browse/KNOX-784
> Project: Apache Knox
> Issue Type: Bug
> Reporter: Nishant Bangarwa
> Assignee: Kevin Risden
> Priority: Major
> Fix For: 1.3.0
>
> Attachments: KNOX-784.patch
>
>
> Facing this error on latest trunk version -
> {code:java}
> Caused by: java.lang.IllegalArgumentException: A metric named
> org.apache.http.conn.HttpClientConnectionManager.available-connections
> already exists
> at com.codahale.metrics.MetricRegistry.register(MetricRegistry.java:91)
> at
> com.codahale.metrics.httpclient.InstrumentedHttpClientConnectionManager.<init>(InstrumentedHttpClientConnectionManager.java:63)
> at
> com.codahale.metrics.httpclient.InstrumentedHttpClientConnectionManager.<init>(InstrumentedHttpClientConnectionManager.java:49)
> at
> com.codahale.metrics.httpclient.InstrumentedHttpClientConnectionManager.<init>(InstrumentedHttpClientConnectionManager.java:41)
> at
> com.codahale.metrics.httpclient.InstrumentedHttpClientConnectionManager.<init>(InstrumentedHttpClientConnectionManager.java:36)
> at
> org.apache.hadoop.gateway.services.metrics.impl.instr.InstrHttpClientBuilderProvider.getInstrumented(InstrHttpClientBuilderProvider.java:41)
> at
> org.apache.hadoop.gateway.services.metrics.impl.instr.InstrHttpClientBuilderProvider.getInstrumented(InstrHttpClientBuilderProvider.java:36)
> at
> org.apache.hadoop.gateway.services.metrics.impl.DefaultMetricsService.getInstrumented(DefaultMetricsService.java:128)
> at
> org.apache.hadoop.gateway.dispatch.DefaultHttpClientFactory.createHttpClient(DefaultHttpClientFactory.java:67)
> at
> org.apache.hadoop.gateway.dispatch.GatewayDispatchFilter.init(GatewayDispatchFilter.java:75)
> at
> org.apache.hadoop.gateway.GatewayFilter$Holder.getInstance(GatewayFilter.java:362){code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
