Mongodb的Java驅動程序不斷記錄消息，如何禁用它？

Question

我正在使用Mongodb Java驅動程序3.4.0-beta，它的'org.mongodb.driver'不斷注銷以下消息：

2017-06-28 10:11:37.893  INFO 11700 --- [localhost:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=682055}
2017-06-28 10:11:44.926  INFO 11700 --- [127.0.0.1:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=127.0.0.1:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=661572}
2017-06-28 10:11:47.898  INFO 11700 --- [localhost:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=688467}
2017-06-28 10:11:54.931  INFO 11700 --- [127.0.0.1:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=127.0.0.1:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=669573}
2017-06-28 10:11:57.902  INFO 11700 --- [localhost:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=688015}
2017-06-28 10:12:04.934  INFO 11700 --- [127.0.0.1:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=127.0.0.1:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=658192}
2017-06-28 10:12:07.905  INFO 11700 --- [localhost:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=706180}
2017-06-28 10:12:14.940  INFO 11700 --- [127.0.0.1:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=127.0.0.1:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=660184}
2017-06-28 10:12:17.910  INFO 11700 --- [localhost:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=692718}
2017-06-28 10:12:24.945  INFO 11700 --- [127.0.0.1:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=127.0.0.1:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 4, 1]}, minWireVersion=0, maxWireVersion=5, maxDocumentSize=16777216, roundTripTimeNanos=711120}
2017-06-28 10:12:27.914  INFO 11700 --- [localhost:27017] org.mongodb.driver.cluster               : Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{org/xsd/maven-4.0.0.xsd">

對我來說這是無用的信息，而且太冗長了。 我搜索了stackoverflow中幾乎所有的解決方案，但沒有一個適合我。 其中之一是：

static {
  System.setProperty("DEBUG.MONGO", "false");
  System.setProperty("DB.TRACE", "false");
  LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
  Logger logger = context.getLogger("org.mongodb.driver.cluster");
  logger.setLevel(Level.OFF);
}

和：

static {
  Logger logger = (Logger) LoggerFactory.getLogger("org.mongodb.driver.cluster");
  logger.setLevel(Level.OFF);
}

通過設置斷點進行調試，我發現它使用logback作為Logger的實現，但是我無法獲得驅動程序正在使用的真實記錄器，因此無法設置它的日志級別。 使用Logger logger = (Logger) LoggerFactory.getLogger("org.mongodb.driver.cluster"); 實際上是行不通的。 它只是不斷注銷。

我想知道：

1. 如何避免這些消息？
2. 為什么mongodb驅動程序記錄它？（這完全是無用的信息）

Answer 1

不要使用測試版，然后設置它的日志級別：

static {
  Logger logger = (Logger) LoggerFactory.getLogger("org.mongodb.driver.cluster");
  logger.setLevel(Level.WARN);
}