Added node restart capabilities to TestCluster
Trigger retry mechanism (onFailure method) instead of invoking transport service with null DiscoveryNode when no DiscoveryNode can be found for a ShardRouting.
Currently tests only run with node clients but eventually we want to
run all tests with randomly choosen node / transport clients. To enable
this during development and on test servers as a transition phase this
commit adds the ability to allow a fraction of the clients used in
tests to be transport clients. By default this is still disabled.
To enable transport clients in tests pass '-Dtests.client.ratio=[0..1]'
where '1.0' will force transport clients and '0.0' completely disables
them. If an empty string is passed the ratio is chosen at random for
each test.
Catching Throwable instead of Exception in TransportClient
and TransportClientNodesService and restore interrupted flag
if interrupt exception is caught and ignored
TransportClient doesn't add the initial nodes to the nodes list
if it doesn't retrieve any nodes from the listeners which can cause
the transport client to throw a 'NoNodeAvailableException' if the
'sniff' response didn't return any nodes. This situation can occure
if the client tries to get the listener nodes cluster state while that
node is not yet connected to any other nodes.
TestCluster can currently only be used in a globally shared scope.
This commit adds the ability to use the TestCluster in 3 different
scopes per test-suite. The scopes are 'Global', 'Suite' and 'Test'
where the cluster is shared across all tests, across all test methods or
not at all respectivly.
Subclasses of AbstractIntegrationTest (formerly AbstractSharedClusterTest)
can add an annotation if they need a different scope than Global (default):
```
@ClusterScope(scope=Scope.Suite, numNodes=1)
```
This also allows to specify the number of shared nodes in that TestCluster
that are available when a test starts.
The cleanups in this commit include:
- s/Elasticsearch/ElasticSearch/g on test classes
- Move test classes in org.elasticsearch.test
Simon Willnauer
Andrew Raines
Costin Leau
Martijn van Groningen
Shay Banon
Alexander Reelsen
Luca Cavanna
iksnalybok
Brusic