Details
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Bug
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Resolution: User Error
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Major
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None
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3.2.1
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None
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CB Server 6.6.2 Build 9588
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1
Description
Getting a NullPointerException when Java app attempts connection to CB cluster with 1 kv node, 1 index node, and 2 query nodes.
For reference, see attached full error stacktrace and related Slack thread on #sdks-and-connectors channel
The 2 query nodes were each configured with an alternate address with the following commands:
curl -v -X PUT -u admin:password \
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http://query1:8091/node/controller/setupAlternateAddresses/external \
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-d hostname=NginxHostname
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curl -v -X PUT -u admin:password \
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http://query2:8091/node/controller/setupAlternateAddresses/external \
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-d hostname=NginxHostname
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The test app:
public class testApp { |
public static void main(String[] args) { |
ClusterEnvironment environment = ClusterEnvironment
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.builder()
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.ioConfig(IoConfig.networkResolution(NetworkResolution.EXTERNAL)
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.enableDnsSrv(false)) |
.build();
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Cluster cluster = Cluster
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.connect("localhost", |
ClusterOptions.clusterOptions("Administrator", "password") |
.environment(environment));
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QueryResult result = cluster.query("SELECT * FROM `travel-sample` WHERE type='hotel' LIMIT 1"); |
}
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}
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Per Michael Reiche,
1. The exception occurs at com.couchbase.client.core.Core.lambda$reconfigureGlobal$39(Core.java:709)
2. The fix should be
Change this line in Core.java
if (alternateAddress.isPresent()) {
to
if (alternateAddress.isPresent() && ni.alternateAddresses().containsKey(alternateAddress.get())) {
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