instance, has dbwr,lgwr,arcn,ckpt these background processes, in addition to these processes, each of which adds a number of RAC-specific processes, noting that these process names and the service names provided by the process vary widely. For example, the LMS process provides a GCS service, which is inconvenient and memorable because the process name continues from the OPS (RAC predecessor) before 9i, but the service has been redesigned and named in
=‘dg_config=(jyzhao,jyzhaodg)‘;alter system set db_file_name_convert=‘+DATA/jyzhaodg‘,‘+DATA/jyzhao‘ scope=spfile;alter system set log_file_name_convert=‘+DATA/jyzhaodg‘,‘+DATA/jyzhao‘ scope=spfile;alter system set fal_client=‘jyzhao‘;alter system set fal_server=‘jyzhaodg‘;alter system set log_archive_dest_3=‘service=jyzhaodg valid_for=(online_logfiles,primary_role) db_unique_name=jyzhaodg‘;--暂时defer传输链路,防止此时主库告警生成相关错误SQL> alter system set log_archive_dest_state_3=defer;3.2 Modifying standby RAC
how to realize the orderly data sharing of multiple nodes, this is the two processes of RAC: the Global Cache Service (GCS) and the Global Enqueue Service (GES)
The Global cache Service (GCS) and Global Queue Service (GES) are the most basic RAC processes and are primarily used to coordinate simultaneous access to shared databases and shared resources within a database. At the same time, Ges and GCs record and maintain state information for each data file by using the global Resource direct
are required for transmission. The 8K cache is split into six IP packets sent to the receiving side. At the receiving end, the six IP packets are received and re-created 8K buffers. The reassembly buffer is eventually passed to the application for further processing.650) this.width=650; "src=" Http://s3.51cto.com/wyfs02/M02/71/6C/wKiom1XO2QCDJBGgAACtx0uB_Rc017.jpg "title=" 2015-08-15_141313.png "alt=" Wkiom1xo2qcdjbggaactx0ub_rc017.jpg "/>Figure 1Figure 1 shows how the data blocks are split and
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The above information shows that communication from Node 2 to Node 1 does not work, so node 2 can see only one node (that is, Node 2 itself), but node 1 is working properly, and Node 1 can see 2 node in the cluster, in order to avoid brain splitting, Node 2 abo RTed itself. Solution: Contact your network administrator to check the private network layer to eliminate any network problems. 2. RAC (database) layerTo ensure data consistency, each instance in t
) as well as the Block's front image (post image). If the block is also requested by another instance, the global cache service is responsible for tracking the instance that owns the block, what version of the owning block, and what mode the block is in. The LMS process is a key component of the global cache service.conjecture: Oracle's current cache fusion, when accessed by other instances, will transfer blocks over and build a block in the SGA of th
nodes, this is the two processes of RAC: the Global Cache Service (GCS) and the Global Enqueue Service (GES) The global cache Service (GCS) and Global Queue Service (GES) are the most basic RAC processes and are primarily used to coordinate simultaneous access to shared databases and shared resources within a database. At the same time, Ges and GCs record and maintain through the use of Global resource directory (Globals Resource DIRECTORY,GRD)Status information for each data file, while GRD is
mode the block is in. The LMS process is a key component of the global cache service.conjecture: Oracle's current cache fusion, when accessed by other instances, will transfer blocks over and build a block in the SGA of that instance, the main reason for this could be that access between interconnect or from local memory is faster, allowing Oracle It can be obtained quickly from local memory when accessed again. But this also has a problem, because t
segmentEncapsulation PPP sets PPP as the Encapsulation method used by the serial port or ISDN InterfaceEncapsulation sap specifies that the Ethernet 802.2 format Cisco password used on the network segment is sapEnd exit Configuration ModeErase deletes flash memory or configures CacheErase startup-config Delete content in NVRAMExec-timeout: specifies the time that the EXEC command interpreter has waited before user input.Exit to Exit all configuration modes or to close an active Terminal session
Libav LZO 'av _ lzo1x_decode' Function Memory Corruption Vulnerability
Release date:Updated on:
Affected Systems:LibavDescription:--------------------------------------------------------------------------------Bugtraq id: 68217CVE (CAN) ID: CVE-2014-4609Libav is a cross-platform free software that allows you to perform video, transfer, and stream functions in multimedia formats and protocols.When Libav processes zero bytes, The lzo1x_decompress_safe () function has the integer overflow vulnera
MAC address on the switch.
In the middle of a Cisco switching network, how do I find out which port of the switch is connected to the IP address of a machine? The most convenient and quick way is to use the User tracking function of the CiscoWorks 2000 LMS network management software. The graphical interface is clear at a glance. If you do not have this software, you can use the following manual analysis method to find the answer. Example network: th
Cisco Prime Infrastructure Web Interface Cross-Site Request Forgery VulnerabilityCisco Prime Infrastructure Web Interface Cross-Site Request Forgery Vulnerability
Release date:Updated on:Affected Systems:
Cisco Prime Infrastructure 2.0 (0.0)Cisco Prime Infrastructure 1.2 (0.103)
Description:
CVE (CAN) ID: CVE-2015-6262Cisco Prime Infrastructure is a solution for wireless management through Cisco technology LMS and NCS.The implementation of Cisco
Release date:Updated on:
Affected Systems:Cisco Prime Infrastructure 1.xCisco Prime InfrastructureDescription:--------------------------------------------------------------------------------CVE (CAN) ID: CVE-2013-1153Cisco Prime Infrastructure is a solution for wireless management through Cisco technology LMS and NCS.Because malicious HTTP requests are not verified, Cisco Prime Infrastructure allows users to perform some unauthorized operations throu
(InvocationTargetException e) {e. printStackTrace ();} // 2> call the Service to save the LinkMan object lms. save (lm); // 3> redirect to the LinkMan list (404) response. sendRedirect (request. getContextPath () + "/ListLinkManServlet ");}
Service:
Private CustomerDao cd = new CustomerDaoImpl (); private LinkManDao lmd = new LinkManDaoImpl (); public void save (LinkMan lm) {// open the transaction HibernateUtils. getCurrentSession (). beginTransact
know that in Mesos agent can be configured attr to make some machines run special tasks, The filtering here is based on this feature, such as when we set the Juice-service to use only resources with the following attr properties (in configuration file application.properties)
Mesos.framework.attr=lms,qa,mid|big
After filtering by the Schedulerservice.filterandaddattrsys () method, resources that meet the above attr are selected to perform the task. A
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