systemmonitor

When I first came into contact with Linux, I knew the top Command, and later I found SystemMonitor similar to Windows Task Manager in the graphic interface, however, I found that the two are very different in terms of memory statistics. SEE: Pay attention to used at Mem, and then look at SystemMonitor. We will find that the top Memused and SystemMonitor are very

1. What is the SMON process Thesystemmonitorperformsrecoverywhenafailedinstancestartsupagain. InanOracleRealApplicationClustersdatabase, namely One is The SMON process the systemmonitor performs recovery when a failed instance starts up again. In an internal lereal Application Clusters database, The SMON process of one instance canperform instance recovery for other instances that have faile 1. What is a SMON process? The

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and their names. SQL> SELECT * FROM V $ BGPROCESS Common background processes: N SMON (SystemMonitor) system monitoring process: Ü startup condition: It is started with the ORACLE database system. During running, ORACLE can wake up the SMON process to check whether it needs to perform the work it is responsible; if any other process needs to use the SMON process function, it will wake up the SMON process at any time. Ü role: A. Recover the database w

How to enable shelluser-themeextension-Linux general technology-Linux technology and application information. New linux System fedora 16 # Rpm-qa | grep gnome-shell Gnome-shell-extension-user-theme-3.2.3-1.fc16.noarch Gnome-shell-theme-dark-glass-1.0-1.fc16.noarch Gnome-shell-extension-systemMonitor-3.2.3-1.fc16.noarch Gnome-shell-extension-alternative-status-menu-3.2.3-1.fc16.noarch Gnome-shell-3.2.1-2.fc16.i686 Gnome-shell-extension-theme-se

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). systemMonitor Service (osysmond): this service runs on all nodes. osysmond sends the resource usage of each node to the cluster logger Service, the latter will receive and save the information of all nodes to the CHM database. 2). Cluster Logger Service (ologadh): In a Cluster, ologadh has a master node and a standby node (standby ). When ologadh cannot be started on the current node, it will be enabled on the slave node. (This concept is differen

deadlocks: Database deadlock; * Butter cache hit: database cache hits; The above indicators are only some common indicators, which play a leading role. You must make corresponding adjustments for different applications. For example, the program is used. NET technology, you must add some targeted testing indicators. For more information about these metrics, see systemmonitor and LoadRunner and act in windows. The indicator setting is very important fo

One what is the Smon process The systemmonitor performs recovery when a failed instance starts up again. In a oraclereal application clusters database, the Smon process of one instance Canperform instance for other Stances that have failed. Smon Alsocleans up temporary segments this are no longer in use and recovers deadtransactions skipped during system Failur E and instance recovery because offile-read or offline errors. These transactions are even

parametersLog_checkpoint_intervalAndLog_checkpoint_timeoutMandatory issue.Smon system Monitoring Process (Systemmonitor)The primary role of the Smon system monitoring process is to force recovery operations on the database. When the instance starts, if the last database was shut down abnormally andThe SCN values for log files and control files are different, and Oracle will automatically re-open the database by performing a record of the redo log fil

1. What are background processes? Oracle background processes include DatabaseWriter (DBWR), LogWriter (LGWR), SystemMonitor (SMON), and ProcessMonitor, PMON), CheckpointProcess (CKPT), archiving process, service process, user process. Data Writing Process 1. background processes Oracle background processes include DatabaseWriter (DBWR), Log Writer (LGWR), and System Monitor (SMON) process Monitor (PMON), Checkpoint Process (CKPT), archiving Process,

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