Github user markhamstra commented on the pull request:
https://github.com/apache/spark/pull/9503#issuecomment-156526834
Similar failure with both `PostgresIntegrationSuite` and
`MySQLIntegrationSuite` from `dev/run-tests` on OSX 10.11.1:
```
[info] Exception encountered when attempting to run a suite with class
name: org.apache.spark.sql.jdbc.PostgresIntegrationSuite *** ABORTED *** (3
seconds, 40 milliseconds)
[info] com.spotify.docker.client.DockerException:
java.util.concurrent.ExecutionException:
com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException:
org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375
[localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1,
localhost/fe80:0:0:0:0:0:0:1%1] failed: Connection refused
[info] at
com.spotify.docker.client.DefaultDockerClient.propagate(DefaultDockerClient.java:1141)
[info] at
com.spotify.docker.client.DefaultDockerClient.request(DefaultDockerClient.java:1082)
[info] at
com.spotify.docker.client.DefaultDockerClient.ping(DefaultDockerClient.java:281)
[info] at
org.apache.spark.sql.jdbc.DockerJDBCIntegrationSuite.beforeAll(DockerJDBCIntegrationSuite.scala:76)
[info] at
org.scalatest.BeforeAndAfterAll$class.beforeAll(BeforeAndAfterAll.scala:187)
...
```
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