{"id":29437,"date":"2023-07-05T10:37:31","date_gmt":"2023-12-11T18:29:39","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/mongodb-4-0-%e4%ba%8b%e5%8a%a1%e5%8a%9f%e8%83%bd-%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5-2\/"},"modified":"2025-08-12T14:07:02","modified_gmt":"2025-08-12T06:07:02","slug":"mongodb-4-0-%e4%ba%8b%e5%8a%a1%e5%8a%9f%e8%83%bd-%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/mongodb-4-0-%e4%ba%8b%e5%8a%a1%e5%8a%9f%e8%83%bd-%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5-2\/","title":{"rendered":"MongoDB 4.0 \u4e8b\u52a1\u529f\u80fd \u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"

\u9996\u5148\u4eca\u5e74\u516d\u6708\uff0cMongoDB\u53d1\u5e03\u4e864.0\u7248\u672c\uff0c\u4f7f\u5f97MongoDB\u4e5f\u80fd\u591f\u4f7f\u7528\u8de8\u591a\u4e2a\u6587\u6863\u7684\u4e8b\u52a1\u3002\u73b0\u5728\u6709\u5f88\u591a\u5730\u65b9\u63d0\u4f9b\u4e86\u4ee3\u7801\u793a\u4f8b\u7b49\u5185\u5bb9\uff0c\u6240\u4ee5\u53ef\u80fd\u4f1a\u6709\u4eba\u5df2\u7ecf\u5c1d\u8bd5\u8fc7\u4e86\u3002<\/p>\n

\u8fc4\u4eca\u4e3a\u6b62\uff0cMongoDB\u66fe\u7ecf\u5728\u4ee5\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u95ee\u9898\uff0c\u4e5f\u6709\u7528\u6237\u79bb\u5f00\uff0c\u5e76\u4e14\u906d\u5230\u4e86\u5404\u79cd\u6307\u8d23\u3002\u4ece3.0\u7248\u672c\u5f00\u59cb\u5c06\u5b58\u50a8\u5f15\u64ce\u66f4\u6539\u4e3aWiredTiger\u540e\uff0c\u867d\u7136\u6765\u5f97\u665a\uff0c\u4f46\u4ed8\u51fa\u4e86\u5bf9\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u7684\u91cd\u89c6\uff0c\u6700\u7ec8\u5b9e\u73b0\u4e86\u8fd9\u6b21\u7684\u4ea4\u6613\u3002\u6211\u8ba4\u4e3a\u8fd9\u662f\u4e00\u4e2a\u91cc\u7a0b\u7891\u3002<\/p>\n

\u671f\u5f85\u7740\u80fd\u591f\u98a0\u8986\u4ee5\u5f80\u7684\u5370\u8c61\u5e76\u6301\u7eed\u53d1\u5c55\uff0c\u6211\u4eec\u5c06\u8bd5\u9a8c\u4ea4\u6613\u529f\u80fd\u5e76\u603b\u7ed3\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n

\u6e90\u81ea\u672c\u6b21\u4f7f\u7528\u7684\u6e90\u4ee3\u7801\u5df2\u7ecf\u5b58\u50a8\u5728\u4ee5\u4e0b\u7684\u4ed3\u5e93\u4e2d\u3002<\/p>\n

\u591a\u4efd\u6587\u4ef6\u4ea4\u6613\u6211\u4f1a\u7528Java\u7ed9\u51fa\u4e00\u4e9b\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n
ClientSession<\/span> clientSession<\/span> =<\/span> client<\/span>.<\/span>startSession<\/span>(<\/span>ClientSessionOptions<\/span>.<\/span>builder<\/span>().<\/span>causallyConsistent<\/span>(<\/span>true<\/span>).<\/span>build<\/span>());<\/span>\r\ntry<\/span> {<\/span>\r\n    clientSession<\/span>.<\/span>startTransaction<\/span>(<\/span>TransactionOptions<\/span>.<\/span>builder<\/span>().<\/span>readConcern<\/span>(<\/span>ReadConcern<\/span>.<\/span>SNAPSHOT<\/span>).<\/span>writeConcern<\/span>(<\/span>WriteConcern<\/span>.<\/span>MAJORITY<\/span>));<\/span>\r\n    collection<\/span>.<\/span>updateOne<\/span>(<\/span>clientSession<\/span>,<\/span> eq<\/span>(<\/span>\"name\"<\/span>,<\/span> \"satoshi\"<\/span>),<\/span> combine<\/span>(<\/span>set<\/span>(<\/span>\"flag\"<\/span>,<\/span> flagValue<\/span>),<\/span> currentDate<\/span>(<\/span>\"lastMofified\"<\/span>));<\/span>\r\n    collection<\/span>.<\/span>updateOne<\/span>(<\/span>clientSession<\/span>,<\/span> eq<\/span>(<\/span>\"name\"<\/span>,<\/span> \"vigyan\"<\/span>),<\/span> combine<\/span>(<\/span>set<\/span>(<\/span>\"flag\"<\/span>,<\/span> flagValue<\/span>),<\/span> currentDate<\/span>(<\/span>\"lastModified\"<\/span>));<\/span>\r\n    \/\/ Thread.sleep(10000); \/\/ \u30c6\u30b9\u30c8\u7528<\/span>\r\n    clientSession<\/span>.<\/span>commitTransaction<\/span>();<\/span>\r\n}<\/span> catch<\/span> (<\/span>MongoException<\/span> me<\/span>)<\/span> {<\/span>\r\n    clientSession<\/span>.<\/span>abortTransaction<\/span>();<\/span>\r\n}<\/span> finally<\/span> {<\/span>\r\n    clientSession<\/span>.<\/span>close<\/span>();<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5904\u7406\u6982\u8981\u7531\u4e8e\u4ea4\u6613\uff08\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\uff09\u4e0eClientSession\u76f8\u5173\u8054\uff0c\u8fd9\u5bfc\u81f4\u5fc5\u987b\u4f7f\u7528\u4ece3.6\u7248\u672c\u5f00\u59cb\u5f15\u5165\u7684ClientSession\u3002\u5728\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u4f1a\u6267\u884c\u63d0\u4ea4\uff08commit\uff09\u64cd\u4f5c\uff0c\u800c\u5728\u53d1\u751f\u5f02\u5e38\u7684\u60c5\u51b5\u4e0b\uff0c\u5219\u4f1a\u5728catch\u8bed\u53e5\u4e2d\u901a\u8fc7abortTransaction\u8fdb\u884c\u56de\u6eda\uff08rollback\uff09\u3002<\/p>\n
\u66f4\u65b0\u5185\u5bb9\u662f\u4ee5\u7b80\u5355\u7684update\u5f62\u5f0f\u5448\u73b0\u3002\u4e0eMongo Shell\u548cJavaScript\u4e2d\u7684\u67e5\u8be2\u65b9\u5f0f\u6709\u5f88\u5927\u7684\u4e0d\u540c\uff0c\u4e0d\u80fd\u7b80\u5355\u5730\u5199\u5165\u5b57\u7b26\u4e32\uff0c\u800c\u9700\u8981\u4f7f\u7528\u4e13\u7528\u7684\u7c7b\u4f5c\u4e3a\u641c\u7d22\u6761\u4ef6\u7684\u8fc7\u6ee4\u5668\u548cUpdate\u7684\u64cd\u4f5c\u7b26\uff0c\u56e0\u6b64\u53ef\u80fd\u9700\u8981\u4e00\u5b9a\u7684\u719f\u6089\u5ea6\u3002<\/p>\n
\u5f02\u5e38\u5904\u7406\u5728\u8003\u8651\u5f02\u5e38\u5904\u7406\u65f6\uff0c\u4e0eJava\u5f02\u5e38\u76f8\u5173\u7684Mongo\u5f02\u5e38\u5168\u90e8\u7ee7\u627f\u81eaRuntimeException\u7684MongoException\uff0c\u8fd9\u4e00\u70b9\u9700\u8981\u7279\u522b\u6ce8\u610f\u3002\u5f53\u5f02\u5e38\u53d1\u751f\u65f6\uff0c\u6211\u4eec\u53c2\u8003\u4e86\u53e6\u4e00\u7bc7\u535a\u5ba2\u6587\u7ae0\u4e2d\u7684Java\u5b9e\u73b0\uff0c\u786e\u4fdd\u5728\u5173\u95ed\u4e4b\u524d\u4e00\u5b9a\u8981\u53d1\u51faabortTransaction\u3002<\/p>\n
\u5373\u4f7fcommitTransaction\u5931\u8d25\uff0c\u9a71\u52a8\u7a0b\u5e8f\u7684\u529f\u80fd\u4f1a\u5728\u5185\u90e8\u81ea\u52a8\u91cd\u8bd5\u4e00\u6b21\uff08\u4e0d\u7ba1retryWrites\u8bbe\u7f6e\u5982\u4f55\uff09\u3002\u6839\u636eMongoException\u7684\u5185\u5bb9\uff0c\u6709\u65f6\u4e5f\u53ef\u4ee5\u8fdb\u884c\u91cd\u8bd5\uff0c\u4f46\u6211\u4eec\u8ba4\u4e3a\u53ea\u901a\u8fc7\u9a71\u52a8\u7a0b\u5e8f\u7684\u4e00\u6b21\u91cd\u8bd5\u529f\u80fd\u5c31\u8db3\u591f\u4e86\uff0c\u4ee5\u4fdd\u6301\u7b80\u5355\u7684\u5b9e\u73b0\u300210<\/p>\n
\u6b64\u5916\uff0cClientSession\u5b9e\u73b0\u4e86AutoCloseable\u63a5\u53e3\uff0c\u56e0\u6b64\u4e5f\u53ef\u4ee5\u4f7f\u7528try-with-resources\u5f62\u5f0f\u6765\u7f16\u5199\u3002<\/p>\n
\u8bfb\u5173\u6ce8 \/ \u5199\u5173\u6ce8 \/ \u56e0\u679c\u4e00\u81f4\u6027\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u4f1a\u8bdd\u8bbe\u4e3aCausal Consistent\u3002\u53e6\u5916\uff0c\u5bf9\u4e8e\u4e8b\u52a1\uff0c\u6211\u4eec\u5c06\u8bfb\u5173\u6ce8\u70b9\u8bbe\u4e3asnapshot\uff0c\u5199\u5173\u6ce8\u70b9\u8bbe\u4e3amajority\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u5728\u4e8b\u52a1\u5f00\u59cb\u4e4b\u524d\u7684\u64cd\u4f5c\u4e5f\u5c06\u4fdd\u6301Causal Consistency\u300211<\/p>\n
\u8bd5\u4e00\u8bd5\u6211\u4f1a\u8bd5\u7740\u53bb\u6267\u884c\u3002\u4f7f\u7528Atlas\u7684\u514d\u8d39\u7248\u4f5c\u4e3a\u73af\u5883\u662f\u6bd4\u8f83\u65b9\u4fbf\u7684\u9009\u62e9\u3002\u4e5f\u53ef\u4ee5\u5728\u672c\u5730\u642d\u5efa12\u4e2a\u526f\u672c\u96c6\u3002<\/p>\n
\u7b2c\u4e00\u6b21 \u5355\u6b21\u6267\u884c
\n\u6211\u4f1a\u5c1d\u8bd5\u8fdb\u884c\u4e00\u6b21\u5355\u72ec\u7684\u6267\u884c\u3002<\/p>\n
java -cp<\/span> mongotransaction-0.0.1-SNAPSHOT.jar;<\/span>dependency\\b<\/span>son-3.9.1.jar;<\/span>dependency\\m<\/span>ongodb-driver-core-3.9.1.jar;<\/span>dependency\\m<\/span>ongodb-driver-sync-3.9.1.jar com.qiita.kabao.Sample1 \"mongodb:\/\/<....>\/test?replicaSet=rsokano&authSource=admin&retryWrites=true\"<\/span> 0000\r\nStart Session\r\nStart Transaction\r\n{<\/span> \"_id\"<\/span> : {<\/span> \"<\/span>$oid<\/span>\"<\/span> : \"5c18d7a46a5db864b14f3a47\"<\/span> }<\/span>, \"name\"<\/span> : \"satoshi\"<\/span>, \"address\"<\/span> : {<\/span> \"country\"<\/span> : \"\u65e5\u672c\"<\/span>, \"pref\"<\/span> : \"\u795e\u5948\u5ddd\"<\/span>, \"city\"<\/span> : \"\u6a2a\u6d5c\"<\/span>, \"zipcode\"<\/span> : \"220-0001\"<\/span> }<\/span>, \"lastModified\"<\/span> : {<\/span> \"<\/span>$date<\/span>\"<\/span> : 1545131967068 }<\/span> }<\/span>\r\nCommit....\r\n....done\r\nclose\r\nend\r\n<\/code><\/pre>\n
\u7ed3\u679c<\/p>\n
rsokano:PRIMARY> db.sample1.find()<\/span>.pretty()<\/span>\r\n{<\/span>\r\n        \"_id\"<\/span> : ObjectId(<\/span>\"5c18d7a46a5db864b14f3a47\"<\/span>)<\/span>,\r\n        \"name\"<\/span> : \"satoshi\"<\/span>,\r\n        \"address\"<\/span> : {<\/span>\r\n                \"country\"<\/span> : \"\u65e5\u672c\"<\/span>,\r\n                \"pref\"<\/span> : \"\u795e\u5948\u5ddd\"<\/span>,\r\n                \"city\"<\/span> : \"\u6a2a\u6d5c\"<\/span>,\r\n                \"zipcode\"<\/span> : \"220-0001\"<\/span>\r\n        }<\/span>,\r\n        \"lastModified\"<\/span> : ISODate(<\/span>\"2018-12-18T11:19:00.286Z\"<\/span>)<\/span>,\r\n        \"flag\"<\/span> : \"0000\"<\/span>\r\n}<\/span>\r\n{<\/span>\r\n        \"_id\"<\/span> : ObjectId(<\/span>\"5c18d7a46a5db864b14f3a49\"<\/span>)<\/span>,\r\n        \"name\"<\/span> : \"vigyan\"<\/span>,\r\n        \"address\"<\/span> : {<\/span>\r\n                \"country\"<\/span> : \"Australia\"<\/span>,\r\n                \"state\"<\/span> : \"VIC\"<\/span>,\r\n                \"city\"<\/span> : \"Melbourne\"<\/span>,\r\n                \"street\"<\/span> : \"120 Collins Street\"<\/span>,\r\n                \"postcode\"<\/span> : \"3000\"<\/span>\r\n        }<\/span>,\r\n        \"lastModified\"<\/span> : ISODate(<\/span>\"2018-12-18T11:19:27.111Z\"<\/span>)<\/span>\r\n}<\/span>\r\nrsokano:PRIMARY>\r\n<\/code><\/pre>\n
\u540c\u65f6\u6267\u884c\u7b2c\u4e8c\u6b21
\n\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u5c1d\u8bd5\u540c\u65f6\u6267\u884c\u4e24\u4e2a\u4efb\u52a1\u3002<\/p>\n
\u7b2c\u4e00\u4e2a\u3002\u8fd0\u4f5c\u6b63\u5e38\u3002<\/p>\n
java -cp<\/span> mongotransaction-0.0.1-SNAPSHOT.jar;<\/span>dependency\\b<\/span>son-3.9.1.jar;<\/span>dependency\\m<\/span>ongodb-driver-core-3.9.1.jar;<\/span>dependency\\m<\/span>ongodb-driver-sync-3.9.1.jar com.qiita.kabao.Sample1 \"mongodb:\/\/<....>\/test?replicaSet=rsokano&authSource=admin&retryWrites=true\"<\/span> 1111\r\nStart Session\r\nStart Transaction\r\n{<\/span> \"_id\"<\/span> : {<\/span> \"<\/span>$oid<\/span>\"<\/span> : \"5c18d7a46a5db864b14f3a47\"<\/span> }<\/span>, \"name\"<\/span> : \"satoshi\"<\/span>, \"address\"<\/span> : {<\/span> \"country\"<\/span> : \"\u65e5\u672c\"<\/span>, \"pref\"<\/span> : \"\u795e\u5948\u5ddd\"<\/span>, \"city\"<\/span> : \"\u6a2a\u6d5c\"<\/span>, \"zipcode\"<\/span> : \"220-0001\"<\/span> }<\/span>, \"lastModified\"<\/span> : {<\/span> \"<\/span>$date<\/span>\"<\/span> : 1545132857511 }<\/span> }<\/span>\r\nCommit....\r\n....done\r\nclose\r\nend\r\n<\/code><\/pre>\n
\u7b2c\u4e8c\u4e2a\u3002\u51fa\u73b0\u4e86MongoCommandException\u7684WriteConflict\u3002<\/p>\n
java -cp<\/span> mongotransaction-0.0.1-SNAPSHOT.jar;<\/span>dependency\\b<\/span>son-3.9.1.jar;<\/span>dependency\\m<\/span>ongodb-driver-core-3.9.1.jar;<\/span>dependency\\m<\/span>ongodb-driver-sync-3.9.1.jar com.qiita.kabao.Sample1 \"mongodb:\/\/<....>\/test?replicaSet=rsokano&authSource=admin&retryWrites=true\"<\/span> 2222\r\nStart Session\r\nStart Transaction\r\nMongoException\r\nAbort....\r\n....done\r\ncom.mongodb.MongoCommandException: Command failed with error 112 (<\/span>WriteConflict)<\/span>: 'WriteConflict'<\/span> on server 192.168.56.102:27017. The full response is {<\/span> \"errorLabels\"<\/span> : [<\/span>\"TransientTransactionError\"<\/span>]<\/span>, \"operationTime\"<\/span> : {<\/span> \"<\/span>$timestamp<\/span>\"<\/span> : {<\/span> \"t\"<\/span> : 1545132829, \"i\"<\/span> : 1 }<\/span> }<\/span>, \"ok\"<\/span> : 0.0, \"errmsg\"<\/span> : \"WriteConflict\"<\/span>, \"code\"<\/span> : 112, \"codeName\"<\/span> : \"WriteConflict\"<\/span>, \"<\/span>$clusterTime<\/span>\"<\/span> : {<\/span> \"clusterTime\"<\/span> : {<\/span> \"<\/span>$timestamp<\/span>\"<\/span> : {<\/span> \"t\"<\/span> : 1545132829, \"i\"<\/span> : 1 }<\/span> }<\/span>, \"signature\"<\/span> : {<\/span> \"hash\"<\/span> : {<\/span> \"<\/span>$binary<\/span>\"<\/span> : \"AAAAAAAAAAAAAAAAAAAAAAAAAAA=\"<\/span>, \"<\/span>$type<\/span>\"<\/span> : \"00\"<\/span> }<\/span>, \"keyId\"<\/span> : {<\/span> \"<\/span>$numberLong<\/span>\"<\/span> : \"0\"<\/span> }}<\/span> }<\/span> }<\/span>\r\n        at com.mongodb.internal.connection.ProtocolHelper.getCommandFailureException(<\/span>ProtocolHelper.java:179)<\/span>\r\n        at com.mongodb.internal.connection.InternalStreamConnection.receiveCommandMessageResponse(<\/span>InternalStreamConnection.java:299)<\/span>\r\n        at com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(<\/span>InternalStreamConnection.java:255)<\/span>\r\n        at com.mongodb.internal.connection.UsageTrackingInternalConnection.sendAndReceive(<\/span>UsageTrackingInternalConnection.java:99)<\/span>\r\n        at com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection<\/span>.sendAndReceive(<\/span>DefaultConnectionPool.java:444)<\/span>\r\n        at com.mongodb.internal.connection.CommandProtocolImpl.execute(<\/span>CommandProtocolImpl.java:72)<\/span>\r\n        at com.mongodb.internal.connection.DefaultServer$DefaultServerProtocolExecutor<\/span>.execute(<\/span>DefaultServer.java:200)<\/span>\r\n        at com.mongodb.internal.connection.DefaultServerConnection.executeProtocol(<\/span>DefaultServerConnection.java:269)<\/span>\r\n        at com.mongodb.internal.connection.DefaultServerConnection.command(<\/span>DefaultServerConnection.java:131)<\/span>\r\n        at com.mongodb.operation.MixedBulkWriteOperation.executeCommand(<\/span>MixedBulkWriteOperation.java:419)<\/span>\r\n        at com.mongodb.operation.MixedBulkWriteOperation.executeBulkWriteBatch(<\/span>MixedBulkWriteOperation.java:257)<\/span>\r\n        at com.mongodb.operation.MixedBulkWriteOperation.access$700<\/span>(<\/span>MixedBulkWriteOperation.java:68)<\/span>\r\n        at com.mongodb.operation.MixedBulkWriteOperation$1<\/span>.call(<\/span>MixedBulkWriteOperation.java:201)<\/span>\r\n        at com.mongodb.operation.MixedBulkWriteOperation$1<\/span>.call(<\/span>MixedBulkWriteOperation.java:192)<\/span>\r\n        at com.mongodb.operation.OperationHelper.withReleasableConnection(<\/span>OperationHelper.java:424)<\/span>\r\n        at com.mongodb.operation.MixedBulkWriteOperation.execute(<\/span>MixedBulkWriteOperation.java:192)<\/span>\r\n        at com.mongodb.operation.MixedBulkWriteOperation.execute(<\/span>MixedBulkWriteOperation.java:67)<\/span>\r\n        at com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor<\/span>.execute(<\/span>MongoClientDelegate.java:193)<\/span>\r\n        at com.mongodb.client.internal.MongoCollectionImpl.executeSingleWriteRequest(<\/span>MongoCollectionImpl.java:960)<\/span>\r\n        at com.mongodb.client.internal.MongoCollectionImpl.executeReplaceOne(<\/span>MongoCollectionImpl.java:602)<\/span>\r\n        at com.mongodb.client.internal.MongoCollectionImpl.replaceOne(<\/span>MongoCollectionImpl.java:597)<\/span>\r\n        at com.qiita.kabao.Sample1.main(<\/span>Sample1.java:83)<\/span>\r\nclose\r\nend\r\n<\/code><\/pre>\n
\u7ed3\u679c\u3002\u53ea\u6709\u7b2c\u4e00\u4e2a\u9009\u9879\u88ab\u53cd\u6620\u51fa\u6765\u3002<\/p>\n
rsokano:PRIMARY> db.sample1.find()<\/span>.pretty()<\/span>\r\n{<\/span>\r\n        \"_id\"<\/span> : ObjectId(<\/span>\"5c18d7a46a5db864b14f3a47\"<\/span>)<\/span>,\r\n        \"name\"<\/span> : \"satoshi\"<\/span>,\r\n        \"address\"<\/span> : {<\/span>\r\n                \"country\"<\/span> : \"\u65e5\u672c\"<\/span>,\r\n                \"pref\"<\/span> : \"\u795e\u5948\u5ddd\"<\/span>,\r\n                \"city\"<\/span> : \"\u6a2a\u6d5c\"<\/span>,\r\n                \"zipcode\"<\/span> : \"220-0001\"<\/span>\r\n        }<\/span>,\r\n        \"lastModified\"<\/span> : ISODate(<\/span>\"2018-12-18T11:33:50.876Z\"<\/span>)<\/span>,\r\n        \"flag\"<\/span> : \"1111\"<\/span>\r\n}<\/span>\r\n{<\/span>\r\n        \"_id\"<\/span> : ObjectId(<\/span>\"5c18d7a46a5db864b14f3a49\"<\/span>)<\/span>,\r\n        \"name\"<\/span> : \"vigyan\"<\/span>,\r\n        \"address\"<\/span> : {<\/span>\r\n                \"country\"<\/span> : \"Australia\"<\/span>,\r\n                \"state\"<\/span> : \"VIC\"<\/span>,\r\n                \"city\"<\/span> : \"Melbourne\"<\/span>,\r\n                \"street\"<\/span> : \"120 Collins Street\"<\/span>,\r\n                \"postcode\"<\/span> : \"3000\"<\/span>\r\n        }<\/span>,\r\n        \"lastModified\"<\/span> : ISODate(<\/span>\"2018-12-18T11:34:17.563Z\"<\/span>)<\/span>\r\n}<\/span>\r\nrsokano:PRIMARY>\r\n<\/code><\/pre>\n
\u5199\u51b2\u7a81
\n\u5728\u67d0\u4e2a\u4e8b\u52a1\u4e2d\u5bf9\u6b63\u5728\u88ab\u4fee\u6539\u7684\u6587\u6863\u8fdb\u884c\u66f4\u6539\uff0c\u5982\u679c\u5176\u4ed6\u4e8b\u52a1\u4e5f\u8bd5\u56fe\u5bf9\u5176\u8fdb\u884c\u66f4\u6539\uff0c\u5219\u540e\u7eed\u4e8b\u52a1\u5c06\u7b49\u5f85\u9501\u5b9a\uff0c\u5e76\u5728\u7b49\u5f85\u4e00\u5b9a\u65f6\u95f4\u540e\u4ecd\u672a\u83b7\u5f97\u9501\u5b9a\u65f6\uff0c\u5c06\u4ea7\u751f\u5199\u51b2\u7a81\u9519\u8bef\u3002<\/p>\n
\u53ef\u4ee5\u4f7f\u7528maxTransactionLockRequestTimeoutMillis\u53c2\u6570\u6765\u6307\u5b9a\u9501\u5b9a\u786e\u8ba4\u7684\u8d85\u65f6\u65f6\u95f4\uff0c\u9ed8\u8ba4\u4e3a5\u6beb\u79d2\u3002<\/p>\n
\u5728MongoDB\u4e2d\uff0c\u6709\u4e00\u4e2a\u7c7b\u4f3c\u4e8eRDB\u4e16\u754c\u4e2d\u7684\u9501\u7b49\u5f85\u548c\u952e\u91cd\u590d\u7684\u6982\u5ff5\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u662f\u81ea4.0\u7248\u672c\u4ee5\u540e\u51fa\u73b0\u7684\u65b0\u9519\u8bef\u3002<\/p>\n
\u6700\u4f73\u5b9e\u8df5 (Zu\u00ec ji\u0101\u5982\u679c\u4f7f\u7528\u4e8b\u52a1\u529f\u80fd\uff0c\u6211\u4eec\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u70b9\u5e94\u8be5\u662f\u5904\u7406\u5199\u51b2\u7a81\u95ee\u9898\u3002<\/p>\n
\u7136\u800c\uff0c\u5728\u6b64\u4e4b\u524d\uff0cMongoDB\u4f3c\u4e4e\u5efa\u8bae\u4e0d\u4e00\u5b9a\u8981\u4f7f\u7528\u4e8b\u52a1\uff0c\u800c\u662f\u8981\u8003\u8651\u8bbe\u8ba1\u4e00\u4e2a\u53ef\u4ee5\u5728\u5355\u4e2a\u6587\u6863\u7ea7\u522b\u8fdb\u884c\u5904\u7406\u7684\u6570\u636e\u6a21\u578b\u3002<\/p>\n
    \n
  1. \n
      \u5373\u4f7f\u4f7f\u75284.0\u6216\u66f4\u9ad8\u7248\u672c\uff0c\u4e5f\u4e0d\u8981\u5728\u4efb\u4f55\u5730\u65b9\u90fd\u4f7f\u7528\u4e8b\u52a1\u3002\u5e94\u8003\u8651\u6587\u6863\u6570\u636e\u6a21\u578b\uff0c\u4ee5\u4fbf\u53ef\u4ee5\u9488\u5bf9\u5355\u4e2a\u6587\u6863\u8fdb\u884c\u5904\u7406\u3002<\/ol>\n<\/li>\n<\/ol>\n
       <\/p>\n
        \n
      1. \n
          \u8981\u8003\u8651\u5199\u51b2\u7a81\u3002<\/ol>\n<\/li>\n<\/ol>\n
           <\/p>\n
            \n
          1. \n
              \u5982\u679c\u4f7f\u7528\u4e8b\u52a1\uff0c\u8bf7\u8003\u8651\u5728\u77ed\u65f6\u95f4\u5185\u5b8c\u6210\u3002\u5982\u679c\u8d85\u8fc7transactionLifetimeLimitSeconds\uff08\u9ed8\u8ba4\u4e3a60\u79d2\uff09\uff0c\u4e8b\u52a1\u5c06\u88ab\u4e2d\u6b62\u3002<\/ol>\n<\/li>\n<\/ol>\n
               <\/p>\n
                \n
              1. \n
                  \u4e8b\u52a1\u4e2d\u5305\u542b\u7684\u6570\u636e\u91cf\u4e0d\u8981\u8d85\u8fc716MB\u3002<\/ol>\n<\/li>\n<\/ol>\n
                  \u4e8b\u52a1\u5185\u4e0d\u53ef\u5305\u542bDDL\u64cd\u4f5c\u3002\u5728\u540c\u4e00\u547d\u540d\u7a7a\u95f4\u4e2d\u5b58\u5728\u8fdb\u884c\u4e2d\u7684\u4e8b\u52a1\u65f6\uff0c\u8981\u6ce8\u610fDDL\u64cd\u4f5c\u5c06\u88ab\u963b\u585e\u3002<\/p>\n
                  \n
                  Jepsen\u62a5\u544a\u79f0\uff0c\u5728MongoDB\u8fc7\u53bb\u7684\u7248\u672c\u4e2d\u5b58\u5728\u6570\u636e\u4e22\u5931\u7684\u53ef\u80fd\u6027\u3002<\/p>\n
                  \u6709\u5173MongoDB 3.4.0-rc3\u7684\u5148\u524d\u7248\u672c\uff0c\u6709\u5173Lost update\u3001Dirty Read\u548cStale Read\u7684\u95ee\u9898\u5df2\u7ecf\u62a5\u9053\u3002<\/p>\n
                  \u8bbe\u8ba1\u7f3a\u9677\uff1aMongoDB\u5bb9\u9519\u6027\u3002<\/p>\n
                  \u54ea\u4e9b\u516c\u53f8\u5df2\u7ecf\u653e\u5f03\u4e86MongoDB\uff1f\u4ed6\u4eec\u4e3a\u4ec0\u4e48\u653e\u5f03\u4e86\uff1f\u4ed6\u4eec\u8f6c\u5411\u4e86\u4ec0\u4e48\uff1f<\/p>\n
                  \u8c01\u9000\u51fa\u4e86MongoDB\uff1f\u4e3a\u4ec0\u4e48\uff1f\uff08Quora\u7ffb\u8bd1\uff09<\/p>\n
                  RethinkDB\uff1a\u4e3a\u4ec0\u4e48\u6211\u4eec\u5931\u8d25\u4e86\u201c\u6bcf\u6b21MongoDB\u53d1\u5e03\u65b0\u7248\u672c\u5e76\u53d7\u5230\u4eba\u4eec\u5e86\u795d\u4ed6\u4eec\u6539\u8fdb\u7684\u65f6\u5019\uff0c\u6211\u90fd\u611f\u5230\u4e00\u4e1d\u6124\u6012\u3002\u201d<\/p>\n
                  MongoDB\u7684\u591a\u6587\u6863ACID\u4e8b\u52a1\u5df2\u7ecf\u6210\u4e3aGA 3.0\u4ee5\u6765\uff0c\u5728\u4e09\u5e74\u4ee5\u4e0a\u7684\u65f6\u95f4\u91cc\uff0c\u6301\u7eed\u5728\u5e95\u5c42\u5b9e\u73b0\u4e86\u57fa\u7840\u529f\u80fd\uff0c\u5982\u5b58\u50a8\u3002<\/p>\n
                  7\u7684\u65e5\u8bed\u7ffb\u8bd1\u3002<\/p>\n
                  \u5bf9\u4e8eJDBC\u7684\u60c5\u51b5\uff0c\u6839\u636e\u5b9e\u73b0\u7684\u4f9d\u8d56\u6027\uff0c\u5728\u53d1\u751f\u5f02\u5e38\u7b49\u60c5\u51b5\u65f6\uff0c\u6267\u884cclose\u800c\u4e0d\u6267\u884ccommit\u6216rollback\u7684\u884c\u4e3a\u88ab\u63a8\u8350\u4e3a\u672a\u5b9a\u4e49\u3002\u5728MongoDB 4.0\u4e2d\uff0c\u672a\u660e\u786e\u8bf4\u660e\u5728\u6267\u884ccommitTransaction\u6216abortTransaction\u4e4b\u524d\u6267\u884cclose\u7684\u884c\u4e3a\u89c4\u8303\uff0c\u5728\u6587\u6863\u4e2d\u6ca1\u6709\u8bb0\u5f55\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5efa\u8bae\u5728\u8c03\u7528close\u4e4b\u524d\u6267\u884ccommitTransaction\u6216abortTransaction\uff0c\u53c2\u8003JDBC\u7684\u60c5\u51b5\u4ee5\u53ca\u4e0a\u8ff0\u5176\u4ed6\u535a\u5ba2\u6587\u7ae0\u3002\u503c\u5f97\u4e00\u63d0\u7684\u662f\uff0c\u5bf9\u4e8eOracle\u6570\u636e\u5e93\uff0c\u5982\u679c\u5728\u4e0d\u6267\u884ccommit\u4e5f\u4e0d\u6267\u884crollback\u7684\u60c5\u51b5\u4e0b\u6267\u884cclose\uff0c\u5219\u4f1a\u53d1\u751f\u9690\u5f0f\u7684commit\u3002<\/p>\n
                  \u8fd8\u6709\u652f\u6301\u6574\u4e2a\u4e8b\u52a1\u7684\u91cd\u8bd5\u529f\u80fd\u3002<\/p>\n
                  \u4e8b\u52a1\u9009\u9879\uff08\u8bfb\u53d6\u5173\u6ce8\u70b9\/\u5199\u5165\u5173\u6ce8\u70b9\/\u8bfb\u53d6\u504f\u597d\uff09\/\u56e0\u679c\u4e00\u81f4\u6027\/\u56e0\u679c\u4e00\u81f4\u6027\u548c\u8bfb\u5199\u5173\u6ce8\u70b9\u3002<\/p>\n
                  CosmosDB\u76ee\u524d\u4e0eMongoDB 3.2\u517c\u5bb9\uff0c3.4\u7684\u529f\u80fd\u5904\u4e8e\u9884\u89c8\u72b6\u6001\u3002MongoDB 4.0\u7684\u4e8b\u52a1\u529f\u80fd\u4e0d\u53ef\u7528\uff0c\u4e5f\u6ca1\u6709\u8ba1\u5212\u3002\u5b9e\u9645\u4e0a\uff0c\u5728\u9488\u5bf9CosmosDB\u8fd0\u884c\u6b64\u7a0b\u5e8f\u65f6\uff0c\u4f1a\u53d1\u751f\u4ee5\u4e0b\u9519\u8bef\uff1aException in thread “main” com.mongodb.MongoClientException: Sessions are not supported by the MongoDB cluster to which this client is connected\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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