public static void AdminClient_AlterConfigs(string bootstrapServers, string singlePartitionTopic, string partitionedTopic)
{
LogToFile("start AdminClient_AlterConfigs");
using (var adminClient = new AdminClient(new AdminClientConfig {
BootstrapServers = bootstrapServers
}))
{
// 1. create a new topic to play with.
string topicName = Guid.NewGuid().ToString();
adminClient.CreateTopicsAsync(
new List <TopicSpecification> {
new TopicSpecification {
Name = topicName, NumPartitions = 1, ReplicationFactor = 1
}
}).Wait();
Thread.Sleep(TimeSpan.FromSeconds(1)); // without this, sometimes describe topic throws unknown topic/partition error.
// 2. do an invalid alter configs call to change it.
var configResource = new ConfigResource {
Name = topicName, Type = ResourceType.Topic
};
var toUpdate = new Dictionary <ConfigResource, List <ConfigEntry> >
{
{
configResource,
new List <ConfigEntry> {
new ConfigEntry {
Name = "flush.ms", Value = "10001"
},
new ConfigEntry {
Name = "ubute.invalid.config", Value = "42"
}
}
}
};
try
{
adminClient.AlterConfigsAsync(toUpdate).Wait();
Assert.True(false);
}
catch (Exception e)
{
Assert.True(e.InnerException.GetType() == typeof(AlterConfigsException));
var ace = (AlterConfigsException)e.InnerException;
Assert.Single(ace.Results);
Assert.Contains("Unknown", ace.Results[0].Error.Reason);
}
// 3. test that in the failed alter configs call for the specified config resource, the
// config that was specified correctly wasn't updated.
List <DescribeConfigsResult> describeConfigsResult = adminClient.DescribeConfigsAsync(new List <ConfigResource> {
configResource
}).Result;
Assert.NotEqual("10001", describeConfigsResult[0].Entries["flush.ms"].Value);
// 4. do a valid call, and check that the alteration did correctly happen.
toUpdate = new Dictionary <ConfigResource, List <ConfigEntry> >
{
{ configResource, new List <ConfigEntry> {
new ConfigEntry {
Name = "flush.ms", Value = "10011"
}
} }
};
adminClient.AlterConfigsAsync(toUpdate);
describeConfigsResult = adminClient.DescribeConfigsAsync(new List <ConfigResource> {
configResource
}).Result;
Assert.Equal("10011", describeConfigsResult[0].Entries["flush.ms"].Value);
// 4. test ValidateOnly = true does not update config entry.
toUpdate = new Dictionary <ConfigResource, List <ConfigEntry> >
{
{ configResource, new List <ConfigEntry> {
new ConfigEntry {
Name = "flush.ms", Value = "20002"
}
} }
};
adminClient.AlterConfigsAsync(toUpdate, new AlterConfigsOptions {
ValidateOnly = true
}).Wait();
describeConfigsResult = adminClient.DescribeConfigsAsync(new List <ConfigResource> {
configResource
}).Result;
Assert.Equal("10011", describeConfigsResult[0].Entries["flush.ms"].Value);
// 5. test updating broker resource.
toUpdate = new Dictionary <ConfigResource, List <ConfigEntry> >
{
{
new ConfigResource {
Name = "0", Type = ResourceType.Broker
},
new List <ConfigEntry> {
new ConfigEntry {
Name = "num.network.threads", Value = "2"
}
}
}
};
adminClient.AlterConfigsAsync(toUpdate).Wait();
// 6. test updating more than one resource.
string topicName2 = Guid.NewGuid().ToString();
adminClient.CreateTopicsAsync(
new List <TopicSpecification> {
new TopicSpecification {
Name = topicName2, NumPartitions = 1, ReplicationFactor = 1
}
}).Wait();
Thread.Sleep(TimeSpan.FromSeconds(1)); // without this, sometimes describe topic throws unknown topic/partition error.
var configResource2 = new ConfigResource {
Name = topicName2, Type = ResourceType.Topic
};
toUpdate = new Dictionary <ConfigResource, List <ConfigEntry> >
{
{ configResource, new List <ConfigEntry> {
new ConfigEntry {
Name = "flush.ms", Value = "222"
}
} },
{ configResource2, new List <ConfigEntry> {
new ConfigEntry {
Name = "flush.ms", Value = "333"
}
} }
};
adminClient.AlterConfigsAsync(toUpdate).Wait();
describeConfigsResult = adminClient.DescribeConfigsAsync(new List <ConfigResource> {
configResource, configResource2
}).Result;
Assert.Equal(2, describeConfigsResult.Count);
Assert.Equal("222", describeConfigsResult[0].Entries["flush.ms"].Value);
Assert.Equal("333", describeConfigsResult[1].Entries["flush.ms"].Value);
}
Assert.Equal(0, Library.HandleCount);
LogToFile("end AdminClient_AlterConfigs");
}