CN102110162B - Method and device for realizing monitoring on SQL (structured query language) database - Google Patents
Method and device for realizing monitoring on SQL (structured query language) database Download PDFInfo
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Abstract
The embodiment of the invention discloses a method and device for realizing monitoring on an SQL (structured query language) database. The method comprises the following steps of: when a virtual machine loads a database driver used for acquiring database links, changing the name of the original method in the driver; regenerating a method with the same name of the original method in the driver and calling the original method the name of which is changed in the driver in the regenerated method; and modifying the return value of the method, and modifying the acquired database link into a proxy server to complete monitoring on access to a database by a service system. By applying the embodiment of the invention, database operation can be monitored in an operating period, the execution efficiency is increased by adopting a bytecode injection mode, and the driver of service application is not required to be modified.
Description
Technical field
The application relates to field of computer technology, particularly relates to a kind of method and apparatus of realizing the SQL database monitoring.
Background technology
Along with the development of society and the progress of science and technology, the informatization of industry-by-industry is just in carrying out like a raging fire.Comprehensive various technology and the project that develops is very different, how to realize the monitoring to the performance of various systems, especially to SQL (Structured Query Language, structurized query language) monitoring of the implementation status of database, further find system bottleneck, elevator system performance and stability have become technical matters in the urgent need to address.
The mode that realizes at present the SQL database monitoring can be divided into following several: the first is that for example, itself just provides some monitoring functions the Oracle10g database from the execution of database aspect monitoring SQL database.But, first kind of way can only monitor database inside implementation status, can not obtain objectively at net environment, from operation system send fill order to receive execution result during this period of time in the implementation status of database, the performance that therefore, can not reflect the operation of application program performing database.
The second is to revise service code,, adds monitor code in the service code of carrying out SQL database that is.Although the second way can overcome the defective that exists in the first kind of way, but, in the second way, need the original service code of modification to add monitor code and make both mixed in together, increase like this coupling of professional and monitoring, reduced the maintainability of operation system.
The third mode is to adopt the mode of dynamic proxy, that is, adopt dynamic proxy mechanism to come the Update Table storehouse to drive class.See also Fig. 1, it is dynamic proxy structural representation of the prior art.As shown in Figure 1, be that database manipulation drives class by proxy class, former manner of execution is to obtain the method that database connects, proxy class need to realize Invocation Handler interface, and rewrites the invoke method in the interface.Because proxy class need to adopt the mode of reflection just can call wherein former manner of execution, therefore, the execution efficient of proxy class when monitoring is lower, therefore is not suitable in the runtime SQL being monitored.
Summary of the invention
In order to solve the problems of the technologies described above, the embodiment of the present application provides a kind of method and apparatus of realizing the SQL database monitoring, to improve the execution efficient of proxy class when monitoring, simultaneously, guarantees in the runtime SQL database to be realized monitoring.
The embodiment of the present application discloses following technical scheme:
A kind of method that realizes the SQL database monitoring comprises: when the virtual machine loading is used for obtaining the driving class of database connection, change the method name of described driving class Central Plains method; Regenerate the method identical with former method name in the described driving class, and in the method that regenerates, call the former method of having changed the method name in the described driving class; The rreturn value of amending method is revised as the database connection object that obtains and acts on behalf of connecting object; Resemble the interpolation monitor code at the connecting object of described former method, the object and the execution result set pair that are used for execution SQL that obtains by described connecting object, generate corresponding agent object, in order to realize the monitoring that SQL carries out by agent object.
Preferably, described method also comprises: load before the driving class of obtaining the database connection at virtual machine, read the monitoring configuration file, when monitoring is carried out in described monitoring configuration file indication, described driving class is revised as agency's driving class.
Preferably, when the open and close of the connection of SQL database or affairs was monitored, the connecting object of described driving class was Connection.
A kind of device of monitoring SQL database comprises: the method name is changed the unit, is used for changing the method name of described driving class Central Plains method when the virtual machine loading is used for obtaining the driving class of database connection; Generation unit is used for regenerating the method identical with the former method name of described driving class, and calls the former method of having changed the method name in the described driving class in the method that regenerates; Adding device, for resembling the interpolation monitor code at the connecting object of described former method, the object and the execution result set pair that are used for execution SQL that obtains by described connecting object, generate corresponding agent object, in order to realize the monitoring that SQL carries out by agent object.
Preferably, described device also comprises: reading unit, be used for before virtual machine state is carried out the driving class of SQL database operation, reading the monitoring configuration file, and when monitoring is carried out in described monitoring configuration file indication, described driving class is revised as the agency drives class.
Preferably, when the open and close of the connection of SQL database or affairs was monitored, the connecting object of described driving class was Connection.
As can be seen from the above-described embodiment, unlike the prior art, the embodiment of the present application on-the-fly modifies the driving class of database manipulation in the process that service application is carried out, and the database access associated class is acted on behalf of, and realizes the monitoring that database SQL is carried out.Therefore, have the following advantages:
The embodiment of the present application can be revised the application driven class by the bytecode injection mode in the runtime in the process that service application is carried out, do not adopt the reflection mode, has improved the execution efficient of proxy class when monitoring.Can at the monitoring performance of real operation system net environment to SQL database, accurately reflect the performance of system.
Realize monitoring on the basis of not changing existing service code, finish the decoupling zero of watchdog routine and business procedure, not only reduced the impact of monitor procedure on existing system, reduced system risk, and be convenient to the maintenance service program, need not to revise the driver package of operation system.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is dynamic proxy structural representation of the prior art;
Fig. 2 is a kind of process flow diagram of realizing an embodiment of the method that SQL database is monitored of the application;
Fig. 3 is a kind of process flow diagram of realizing another embodiment of the method that SQL database is monitored of the application;
Fig. 4 is a kind of process flow diagram of realizing another embodiment of the method that SQL database is monitored of the application;
Fig. 5 is a kind of structural representation of realizing an embodiment of the device that SQL database is monitored of the application;
Fig. 6 is a kind of structural representation of realizing another embodiment of the device that SQL database is monitored of the application.
Embodiment
For above-mentioned purpose, the feature and advantage that make the application can become apparent more, below in conjunction with accompanying drawing the embodiment of the present application is described in detail.
Embodiment one
See also Fig. 2, it realizes the process flow diagram of an embodiment of the method that SQL database is monitored for the application is a kind of, and the method may further comprise the steps:
Step 201: when the virtual machine loading obtains the driving class of database manipulation, change the method name of described driving class Central Plains method;
For example, in the business application system that adopts the Spring framework, when virtual machine loads the driving class DriverManagerDataSource of performing database operation, the mode that adopts bytecode to inject is revised the method that all obtain connection, as with method name getConnectionFromDriverManager, be modified to getConnectionFromDriverManager_ $ Monitor.
Step 202: regenerate the method identical with former method name in the described driving class, and in the method that regenerates, call the former method of having changed the method name in the described driving class;
Still the getConnectionFromDriver-Manager in the above-mentioned DriverManagerDataSource class is as example, regenerate the method identical with this former method name of getConnectionFromDriverManager, and in the method that regenerates, call the former method of having changed the method name in the DriverManagerDataSource class, namely call getConnectionFromDriverManager_ $ Monitor.
Step 203: the rreturn value of amending method, be revised as the database connection object that obtains and act on behalf of connecting object;
Still the getConnectionFromDriver-Manager in the above-mentioned DriverManagerDataSource class changes rreturn value Connection into ProxyConnection as example.
Step 204: resemble the interpolation monitor code at the connecting object of described former method, the object and the execution result set pair that are used for execution SQL that obtains by described connecting object, generate corresponding agent object, so that the monitoring that realizes that by acting on behalf of connecting object SQL carries out.
As being ProxyConnection with the Connection object modification, Statement is revised as ProxyStatement etc.
As can be seen from the above-described embodiment, unlike the prior art, the embodiment of the present application is revised and is obtained the driving class that database connects in the process that service application is carried out, and returns and acts on behalf of connecting object.Therefore, have the following advantages:
The embodiment of the present application can the monitoring to SQL database in the runtime in the process that service application is carried out.The mode that adopts bytecode to inject comes database to drive the modification of class, avoids adopting the mode of reflection to call wherein former manner of execution, is implanted in the monitor code that drives in the class and sequentially carries out, and has improved the execution efficient of proxy class when monitoring.
Can at the monitoring performance of real operation system net environment to SQL database, accurately reflect the performance of system.
Realize monitoring on the basis of not changing existing service code, finish the decoupling zero of watchdog routine and business procedure, not only reduced the impact of monitor procedure on existing system, reduced system risk, and be convenient to the maintenance service program.
Embodiment two
Present embodiment also provides a kind of method that realizes the SQL database monitoring, present embodiment is with the difference of embodiment one: virtual machine load obtain the driving class that database is connected before, read the monitoring configuration file, because having indicated, this monitoring configuration file whether needs to carry out monitoring, therefore, virtual machine, just will drive class and be revised as agency's driving class when needs are carried out monitoring according to the indication of monitoring configuration file.See also Fig. 3, it realizes the process flow diagram of another embodiment of the method that SQL database is monitored for the application is a kind of, and the method may further comprise the steps:
Step 301: virtual machine reads the monitoring configuration file;
Step 302: when monitoring is carried out in described monitoring configuration file indication, when virtual machine loads the driving class of obtaining the database connection, change the method name of described driving class Central Plains method;
Step 303: regenerate the method identical with former method name in the described driving class, and in the method that regenerates, call the former method of having changed the method name in the described driving class;
Step 304: resemble the interpolation monitor code at the connecting object of described former method, the object and the execution result set pair that are used for execution SQL that obtains by described connecting object, generate corresponding agent object, in order to realize the monitoring that SQL carries out by agent object.
Above-mentioned steps 302-step 304 is illustrated in embodiment one, so locate to repeat no more.
Need to prove that when monitoring was not carried out in the indication of monitoring configuration file, the virtual machine normal load was carried out the driving class of SQL database operation.
As can be seen from the above-described embodiment, unlike the prior art, the embodiment of the present application is added monitor code in the driving class of carrying out the SQL database operation in the process that service application is carried out, and realization will drive class and be revised as agency's driving class.Therefore, have the following advantages:
The embodiment of the present application can determine whether SQL database is monitored according to configuration file in the process that service application starts.The mode that adopts bytecode to inject comes database to drive the modification of class, need not to revise the database-driven bag of service application, avoids adopting the mode of reflection to call wherein former manner of execution, has improved execution efficient.
Can at the monitoring performance of real operation system net environment to SQL database, accurately reflect the performance of system.
Realize monitoring on the basis of not changing existing service code, finish the decoupling zero of watchdog routine and business procedure, not only reduced the impact of monitor procedure on existing system, reduced system risk, and be convenient to the maintenance service program.
Embodiment three
Present embodiment provides a kind of driving class by proxy database to finish the method for SQL monitoring.See also Fig. 4, it realizes the process flow diagram of another embodiment of the method that SQL database is monitored for the application is a kind of, and the method may further comprise the steps:
Step 401: obtain the agency by the database-driven class of revising and connect class;
Step 402: the agency connects class and record monitor message when finishing original linkage function, the execution object that obtains by agency's connection class for act on behalf of the Statement object (as, ProxyStatement);
Step 403: the agency carries out object ProxyStatement record monitor message when carrying out SQL;
Step 404: the proxy results set pair resembles ProxyResultSet record result set information.
As can be seen from the above-described embodiment, unlike the prior art, the embodiment of the present application is in the process that service application is carried out, and the Update Table storehouse drives class, the database connection of obtaining is revised as the agency connects class, finish the monitoring that SQL is carried out by the relevant proxy class of database manipulation.Therefore, have the following advantages:
The embodiment of the present application is in the process that service application is carried out, can monitor SQL in the runtime, the mode that adopts bytecode to inject comes database to drive the modification of class, avoid adopting the mode of reflection to call wherein former manner of execution, be implanted in the monitor code that drives in the class and sequentially carry out, improved the execution efficient of proxy class when monitoring.
Can at the monitoring performance of real operation system net environment to SQL database, accurately reflect the performance of system.
Realize monitoring on the basis of not changing existing service code, finish the decoupling zero of watchdog routine and business procedure, not only reduced the impact of monitor procedure on existing system, reduced system risk, and be convenient to the maintenance service program.
Embodiment four
A kind ofly realize that the method for SQL database monitoring is corresponding with above-mentioned, the embodiment of the present application also provides a kind of device of realizing the SQL database monitoring.See also Fig. 5, it realizes an embodiment of the device that SQL database is monitored for the application is a kind of structural representation comprises: the method name is changed unit 501, generation unit 502 and adding device 503.Principle of work below in conjunction with this device is further introduced its inner structure and annexation.
The method name is changed unit 501, is used for changing the method name of described driving class Central Plains method when virtual machine loads the driving class of carrying out the SQL database operation;
Adding device 503, for resembling the interpolation monitor code at the connecting object of described former method, the object and the execution result set pair that are used for execution SQL that obtains by described connecting object, generate corresponding agent object, in order to realize the monitoring that SQL carries out by agent object.
Preferably, see also Fig. 6, it realizes the structural representation of an embodiment of the device that SQL database is monitored for the application is a kind of, as shown in Figure 6, this device also comprises: reading unit is used for reading the monitoring configuration file before virtual machine drives class, when monitoring is carried out in described monitoring configuration file indication, described driving class is revised as the agency drives class.
Preferably, when the open and close of the connection of SQL database or affairs was monitored, the connecting object of described driving class was Connection.
As can be seen from the above-described embodiment, unlike the prior art, the embodiment of the present application is in the process that service application is carried out, and the Update Table storehouse drives class, the database connection of obtaining is revised as the agency connects class, finish the monitoring that SQL is carried out by the relevant proxy class of database manipulation.Therefore, have the following advantages:
The embodiment of the present application is in the process that service application is carried out, can monitor SQL in the runtime, the mode that adopts bytecode to inject comes database to drive the modification of class, avoid adopting the mode of reflection to call wherein former manner of execution, be implanted in the monitor code that drives in the class and sequentially carry out, improved the execution efficient of proxy class when monitoring.
Can at the monitoring performance of real operation system net environment to SQL database, accurately reflect the performance of system.
Realize monitoring on the basis of not changing existing service code, finish the decoupling zero of watchdog routine and business procedure, not only reduced the impact of monitor procedure on existing system, reduced system risk, and be convenient to the maintenance service program.
Need to prove, one of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random AccessMemory, RAM) etc. at random.
More than a kind of method and apparatus of SQL database monitoring of realizing that the application is provided be described in detail, used specific embodiment herein the application's principle and embodiment are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, the thought according to the application all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.
Claims (6)
1. realize that SQL carries out the method for monitoring for one kind, it is characterized in that, comprising:
When the virtual machine loading was used for obtaining the driving class of database connection, the mode that adopts bytecode to inject was changed the method name of described driving class Central Plains method;
Regenerate the method identical with former method name in the described driving class, and in the method that regenerates, call the former method of having changed the method name in the described driving class;
The rreturn value of amending method is revised as the database connection object that obtains and acts on behalf of connecting object;
Resemble the interpolation monitor code at the connecting object of described former method, the object and the execution result set pair that are used for execution SQL that obtains by described connecting object, generate corresponding agent object, in order to realize the monitoring that SQL carries out by agent object.
2. method according to claim 1, it is characterized in that described method also comprises: before virtual machine loads for the driving class of obtaining the database connection, read the monitoring configuration file, when monitoring is carried out in described monitoring configuration file indication, revise described driving class.
3. method according to claim 1 and 2 is characterized in that, when the open and close of the connection of SQL database or affairs was monitored, the connecting object of described driving class was Connection.
4. a device of monitoring SQL database is characterized in that, comprising:
The method name is changed the unit, is used for when the virtual machine loading is used for obtaining the driving class of database connection, and the mode that adopts bytecode to inject is changed the method name of described driving class Central Plains method;
Generation unit is used for regenerating the method identical with the former method name of described driving class, and calls the former method of having changed the method name in the described driving class in the method that regenerates;
Revise the unit, be used for the rreturn value of amending method, the database connection object that obtains is revised as acts on behalf of connecting object;
Adding device, for resembling the interpolation monitor code at the connecting object of described former method, the object and the execution result set pair that are used for execution SQL that obtains by described connecting object, generate corresponding agent object, in order to realize the monitoring that SQL carries out by agent object.
5. device according to claim 4 is characterized in that, described device also comprises: reading unit, be used for before virtual machine drives class, read the monitoring configuration file, when monitoring is carried out in described monitoring configuration file indication, described driving class is revised as the agency drives class.
6. according to claim 4 or 5 described devices, it is characterized in that when the open and close of the connection of SQL database or affairs was monitored, the connecting object of described driving class was Connection.
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| CN103164455B (en) * | 2011-12-15 | 2016-08-03 | 百度在线网络技术（北京）有限公司 | The optimization method and device of data base |
| CN103605722B (en) * | 2013-11-15 | 2018-11-06 | 北京奇虎科技有限公司 | Database monitoring method and device, equipment |
| CN104731780B (en) * | 2013-12-18 | 2018-04-27 | 青岛海尔空调器有限总公司 | Proxy server, the acquisition system comprising its database execution information and acquisition methods |
| CN105404498B (en) * | 2014-09-16 | 2019-03-22 | 网宿科技股份有限公司 | The method of flow in application program is forwarded under mobile intelligent terminal |
| CN108243238B (en) * | 2016-12-27 | 2020-10-09 | 中国移动通信集团浙江有限公司 | Method and device for acquiring performance data |
| CN109471768B (en) * | 2017-09-08 | 2023-04-18 | 阿里巴巴集团控股有限公司 | Service problem monitoring method and device and electronic equipment |
| CN111813633A (en) * | 2020-07-20 | 2020-10-23 | 前海人寿保险股份有限公司 | Performance monitoring method, device, equipment and readable storage medium |
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