为什么我的 spring 应用程序不断打开到云图集 mongoDB 的新连接？
Why my spring Application keep on opening a new connection to cloud atlas mongoDB?
这些是我在应用程序启动
后反复收到的日志
2020-01-22T12:55:34,811 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:429, serverValue:273700}] to x:27017
2020-01-22T12:55:34,856 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:428, serverValue:275417}] to x:27017
2020-01-22T12:55:35,168 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Monitor thread successfully connected to server with description ServerDescription{address=x:27017, type=REPLICA_SET_PRIMARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[4, 2, 2]}, minWireVersion=0, maxWireVersion=8, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=181132909, setName='x-0', canonicalAddress=x:27017, hosts=[x:27017, x:27017, x:27017], passives=[], arbiters=[], primary='x:27017', tagSet=TagSet{[Tag{name='region', value='AP_SOUTH_1'}, Tag{name='nodeType', value='ELECTABLE'}, Tag{name='provider', value='AWS'}]}, electionId=7fffffff000000000000003e, setVersion=2, lastWriteDate=Wed Jan 22 12:55:30 IST 2020, lastUpdateTimeNanos=180151204451076}
2020-01-22T12:55:29,659 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:424, serverValue:276311}] to x:27017
2020-01-22T12:55:30,054 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:425, serverValue:273700}] to x:27017
2020-01-22T12:55:33,603 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:426, serverValue:278143}] to x:27017
2020-01-22T12:55:34,663 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:427, serverValue:275417}] to x:27017
2020-01-22T12:55:34,742 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Monitor thread successfully connected to server with description ServerDescription{address=x:27017, type=REPLICA_SET_PRIMARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[4, 2, 2]}, minWireVersion=0, maxWireVersion=8, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=133861489, setName='x-0', canonicalAddress=x:27017, hosts=[x:27017, x:27017, x:27017], passives=[], arbiters=[], primary='x:27017', tagSet=TagSet{[Tag{name='nodeType', value='ELECTABLE'}, Tag{name='provider', value='AWS'}, Tag{name='region', value='AP_SOUTH_1'}]}, electionId=7fffffff000000000000003e, setVersion=2, lastWriteDate=Wed Jan 22 12:55:30 IST 2020, lastUpdateTimeNanos=180150777860085}
2020-01-22T12:55:34,811 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:429, serverValue:273700}] to x:27017
2020-01-22T12:55:34,856 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:428, serverValue:275417}] to x:27017
集群是来自云mongo图集的M0。
每当我们将某些 ip 列入白名单时，连接数就会飙升到最大值 100 以上。
一旦我们从白名单中删除该 IP，连接就会断开。
奇怪的是，即使我们没有通过 I.P 上的 Web 服务器建立任何连接，连接也会激增。
这与监视器线程有关，即使它已连接但仍尝试重新连接。
我们之前遇到过类似的问题，即使我们只是将 IP 列入白名单，连接也会激增。这是一个奇怪的问题，因为我们没有从那个列入白名单的 IP 建立任何连接，连接仍然激增。
但解决方案很奇怪，我们重新启动其中一个开发者系统。
我们可以怀疑的是，他之前通过 NoSQL Booster、终端或通过本地调试部署有很多连接 itself.These 连接不会自行关闭，只要他的笔记本电脑连接到任何白名单 IP 就会出现。
解决奇怪情况的非常简单的方法。也许你可以试试重启系统。
这些是我在应用程序启动
后反复收到的日志2020-01-22T12:55:34,811 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:429, serverValue:273700}] to x:27017
2020-01-22T12:55:34,856 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:428, serverValue:275417}] to x:27017
2020-01-22T12:55:35,168 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Monitor thread successfully connected to server with description ServerDescription{address=x:27017, type=REPLICA_SET_PRIMARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[4, 2, 2]}, minWireVersion=0, maxWireVersion=8, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=181132909, setName='x-0', canonicalAddress=x:27017, hosts=[x:27017, x:27017, x:27017], passives=[], arbiters=[], primary='x:27017', tagSet=TagSet{[Tag{name='region', value='AP_SOUTH_1'}, Tag{name='nodeType', value='ELECTABLE'}, Tag{name='provider', value='AWS'}]}, electionId=7fffffff000000000000003e, setVersion=2, lastWriteDate=Wed Jan 22 12:55:30 IST 2020, lastUpdateTimeNanos=180151204451076}
2020-01-22T12:55:29,659 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:424, serverValue:276311}] to x:27017
2020-01-22T12:55:30,054 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:425, serverValue:273700}] to x:27017
2020-01-22T12:55:33,603 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:426, serverValue:278143}] to x:27017
2020-01-22T12:55:34,663 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:427, serverValue:275417}] to x:27017
2020-01-22T12:55:34,742 INFO [cluster-ClusterId{value='5e27f56199adc55f60198440', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Monitor thread successfully connected to server with description ServerDescription{address=x:27017, type=REPLICA_SET_PRIMARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[4, 2, 2]}, minWireVersion=0, maxWireVersion=8, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=133861489, setName='x-0', canonicalAddress=x:27017, hosts=[x:27017, x:27017, x:27017], passives=[], arbiters=[], primary='x:27017', tagSet=TagSet{[Tag{name='nodeType', value='ELECTABLE'}, Tag{name='provider', value='AWS'}, Tag{name='region', value='AP_SOUTH_1'}]}, electionId=7fffffff000000000000003e, setVersion=2, lastWriteDate=Wed Jan 22 12:55:30 IST 2020, lastUpdateTimeNanos=180150777860085}
2020-01-22T12:55:34,811 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:429, serverValue:273700}] to x:27017
2020-01-22T12:55:34,856 INFO [cluster-ClusterId{value='5e27f56499adc55f60198441', description='null'}-x:27017] com.mongodb.diagnostics.logging.SLF4JLogger: Opened connection [connectionId{localValue:428, serverValue:275417}] to x:27017
集群是来自云mongo图集的M0。 每当我们将某些 ip 列入白名单时，连接数就会飙升到最大值 100 以上。 一旦我们从白名单中删除该 IP，连接就会断开。 奇怪的是，即使我们没有通过 I.P 上的 Web 服务器建立任何连接，连接也会激增。
这与监视器线程有关，即使它已连接但仍尝试重新连接。
我们之前遇到过类似的问题，即使我们只是将 IP 列入白名单，连接也会激增。这是一个奇怪的问题，因为我们没有从那个列入白名单的 IP 建立任何连接，连接仍然激增。
但解决方案很奇怪，我们重新启动其中一个开发者系统。 我们可以怀疑的是，他之前通过 NoSQL Booster、终端或通过本地调试部署有很多连接 itself.These 连接不会自行关闭，只要他的笔记本电脑连接到任何白名单 IP 就会出现。
解决奇怪情况的非常简单的方法。也许你可以试试重启系统。