[CAMEL-11674] Couchbase client is never shut down

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.20.0
• Fix Version/s: 2.20.0
• Estimated Complexity: Unknown
• Assignee: Andrea Cosentino
• Reporter: James Netherton
• Created: 16/Aug/17 19:11
• Updated: 21/Aug/17 08:38
• Resolved: 21/Aug/17 08:37

Description

I'm testing couchbase while it's running within a container (WildFly). If my camel-couchbase application is terminated, I still see client connections being attempted. I guess there's a background thread that's still operational.

The client has a shutdown() method, so we should probably make use of that somewhere.

Server logs are full of errors like:

2017-08-16 19:59:56.074 WARN com.couchbase.client.vbucket.ConfigurationProviderHTTP:  Connection problems with URI http://localhost:8091/pools ...skipping
java.net.ConnectException: Connection refused (Connection refused)
	at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
    at sun.net.www.http.HttpClient.New(HttpClient.java:339)
    at sun.net.www.http.HttpClient.New(HttpClient.java:357)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1546)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474)
    at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readToString(ConfigurationProviderHTTP.java:420)
    at com.couchbase.client.vbucket.ConfigurationProviderHTTP.readPools(ConfigurationProviderHTTP.java:206)
    at com.couchbase.client.vbucket.ConfigurationProviderHTTP.getBucketConfiguration(ConfigurationProviderHTTP.java:143)
    at com.couchbase.client.vbucket.provider.BucketConfigurationProvider.bootstrapHttp(BucketConfigurationProvider.java:352)
    at com.couchbase.client.vbucket.provider.BucketConfigurationProvider.bootstrap(BucketConfigurationProvider.java:128)
    at com.couchbase.client.vbucket.provider.BucketConfigurationProvider.signalOutdated(BucketConfigurationProvider.java:521)
    at com.couchbase.client.vbucket.provider.BucketConfigurationProvider.reloadConfig(BucketConfigurationProvider.java:545)
    at com.couchbase.client.CouchbaseConnection.queueReconnect(CouchbaseConnection.java:369)
    at net.spy.memcached.MemcachedConnection.lostConnection(MemcachedConnection.java:634)
    at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:703)
    at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:436)
    at com.couchbase.client.CouchbaseConnection.run(CouchbaseConnection.java:325)