Indeed, we check within the test suite that we have not unassigned shards.
But when the test starts on my machine I get:
```
[elasticsearch] [2015-08-13 12:03:18,801][INFO ][org.elasticsearch.cluster.routing.allocation.decider] [Kehl of Tauran] low disk watermark [85%] exceeded on [eLujVjWAQ8OHdhscmaf0AQ][Jackhammer] free: 59.8gb[12.8%], replicas will not be assigned to this node
```
```
2> REPRODUCE WITH: mvn verify -Pdev -Dskip.unit.tests -Dtests.seed=2AE3A3B7B13CE3D6 -Dtests.class=org.elasticsearch.smoketest.SmokeTestMultiIT -Dtests.method="test {yaml=smoke_test_multinode/10_basic/cluster health basic test, one index}" -Des.logger.level=ERROR -Dtests.assertion.disabled=false -Dtests.security.manager=true -Dtests.heap.size=512m -Dtests.locale=ar_YE -Dtests.timezone=Asia/Hong_Kong -Dtests.rest.suite=smoke_test_multinode
FAILURE 38.5s | SmokeTestMultiIT.test {yaml=smoke_test_multinode/10_basic/cluster health basic test, one index} <<<
> Throwable #1: java.lang.AssertionError: expected [2xx] status code but api [cluster.health] returned [408 Request Timeout] [{"cluster_name":"prepare_release","status":"yellow","timed_out":true,"number_of_nodes":2,"number_of_data_nodes":2,"active_primary_shards":3,"active_shards":3,"relocating_shards":0,"initializing_shards":0,"unassigned_shards":3,"delayed_unassigned_shards":0,"number_of_pending_tasks":0,"number_of_in_flight_fetch":0,"task_max_waiting_in_queue_millis":0,"active_shards_percent_as_number":50.0}]
```
We don't check anymore if we have unassigned shards and we wait for `yellow` status instead of `green`.
Closes#12852.
da65493965