72016-10-04T09:49:08,314 ERROR [NamespaceExtractionCacheManager-0] io.druid.server.lookup.namespace.cache.NamespaceExtractionCacheManager - Failed update namespace [JDBCExtractionNamespace = { connectorConfig = { DbConnectorConfig{createTables=true, connectURI='jdbc:mysql://DB_HOST:DB_PORT/DB_NAME', user='root', passwordProvider=io.druid.metadata.DefaultPasswordProvider} }, table = table_name, keyColumn = id, valueColumn = display_name, tsColumn = null, pollPeriod = PT0S}]
org.skife.jdbi.v2.exceptions.UnableToObtainConnectionException: java.sql.SQLException: No suitable driver found for jdbc:mysql://DB_HOST:DB_PORT/DB_NAME
at org.skife.jdbi.v2.DBI.open(DBI.java:230) ~[jdbi-2.63.1.jar:2.63.1]
at org.skife.jdbi.v2.DBI.withHandle(DBI.java:279) ~[jdbi-2.63.1.jar:2.63.1]
at io.druid.server.lookup.namespace.JDBCExtractionNamespaceCacheFactory$2.call(JDBCExtractionNamespaceCacheFactory.java:83) ~[druid-lookups-cached-global-0.9.2-rc1.jar:0.9.2-rc1]
at io.druid.server.lookup.namespace.JDBCExtractionNamespaceCacheFactory$2.call(JDBCExtractionNamespaceCacheFactory.java:73) ~[druid-lookups-cached-global-0.9.2-rc1.jar:0.9.2-rc1]
at io.druid.server.lookup.namespace.cache.NamespaceExtractionCacheManager$4.run(NamespaceExtractionCacheManager.java:361) [druid-lookups-cached-global-0.9.2-rc1.jar:0.9.2-rc1]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_111]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_111]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_111]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_111]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178) [?:1.7.0_111]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292) [?:1.7.0_111]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [?:1.7.0_111]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [?:1.7.0_111]
at java.lang.Thread.run(Thread.java:745) [?:1.7.0_111]
Caused by: java.sql.SQLException: No suitable driver found for jdbc:mysql://DB_HOST:DB_PORT/DB_NAME
at java.sql.DriverManager.getConnection(DriverManager.java:596) ~[?:1.7.0_111]
at java.sql.DriverManager.getConnection(DriverManager.java:215) ~[?:1.7.0_111]
at org.skife.jdbi.v2.DBI$3.openConnection(DBI.java:140) ~[jdbi-2.63.1.jar:2.63.1]
at org.skife.jdbi.v2.DBI.open(DBI.java:212) ~[jdbi-2.63.1.jar:2.63.1]
... 13 more