// global操作的资源锁,如reIndex、renameCollection、replSetResizeOplog等操作都会acquire global W 锁RESOURCE_DATABASE,// database级别操作的资源锁,如cloneCollectionCapped、collMod、compact、convertToCapped等操作都会acquire data
RESOURCE_DATABASE,// database级别操作的资源锁,如cloneCollectionCapped、collMod、compact、convertToCapped等操作都会acquire databsae W 锁RESOURCE_COLLECTION,// collection级别操作的资源锁,如createCollection、createIndexes、drop等操作都会acquire collection W 锁RESOURCE_METADATA,// 元数据相关的锁 RESOURCE_MUTEX,...
Azure storage containers are one of several data storage choices in the Azure suite. They are inexpensive and easy to use for both application data storage and data backups. Azure storage scales automatically and without user involvement. The container limits are 100 TB per storage account, 1 MB...
Form setting up MongoDB to saving data and manipulating it in the database, this course will teach you everything related to MongoDB. If you are looking for a short yet detailed course, this one is a perfect option. By the way, you would need a Pluralsight membership to join this cours...
To do so, sign into the Azure portal using credentials for your subscription. Ensure you are working in the directory containing your subscription - indicated at the top right under your user ID. If not, select the user icon and switch directory.Create Mongo...
If the HTTP request incudes a long-running or I/O-intensive task, such as database access or a Web service call, it’s executed asynchronously in non-blocking worker threads. Once the long-running task is complete, the worker threads return the results as a callback...
方法: MongoDB中的集合查询(获取一组文档中某个字段的不同值列表) 运用方法:DBCollection对象方法中的 distinct() 语句: 语句结构:distinct(key,[query]) key字符串,指定获取哪个字段的不同值;query:包含标准查询选项的对象,指定了要从哪个文档中获取不同的字段值 ...
User Management Commands createUser updateUser dropUser dropAllUsersFromDatabase grantRolesToUser revokeRolesFromUser usersInfo Role Management Commands createRole updateRole dropRole dropAllRolesFromDatabase grantPrivilegesToRole revokePrivilegesFromRole grantRolesToRole revokeRolesFromRole rolesInfo invalidateUs...
If you change the user that runs the MongoDB process, you must also modify the permission to the /var/lib/mongodb and /var/log/mongodb directories to give this user access to these directories. To specify a different log file directory and data file directory, edit the systemLog.path ...
The user interface may not be as modern or intuitive as some other solutions. ZabbixMongodb Monitoring 6. Solarwinds DPM SolarWinds DPM is a comprehensive database monitoring solution that provides insights into the performance and health of various databases, including MongoDB. Solarwinds DPM provi...