jnnn

queue coordinator ). Oracle AQ is configured, which can be seen from Q000 (AQ queue process, AQ queue process) and QMNC (AQ monitor process, AQ monistor process. The self-configured SGA size is enabled, as shown in the memory manager (MMAN) process. Oracle 10g manageability/diagnostics is enabled, as can be seen from the management monitor (MMON) and management monitor light (MMNL) processes: 1. CJQ0 and Jnnn processes: Job Queue In version 7.0, Orac

*' oracle41231020:13?00:00:05ora_pmon_dave1 oracle41251020:13?00:00:05ora_psp0_dave1 oracle41271020:13?00:00:02ora_mman_dave1 oracle41291020:13?00:00:05ora_dbw0_dave1 oracle41311020:13?00:00:21ora_lgwr_dave1 oracle41331020:13?00:00:13ora_ckpt_dave1 oracle41351120:13?00:01:12ora_smon_dave1 oracle41371020:13?00:00:04ora_reco_dave1 oracle41391020:13?00:00:16ora_cjq0_dave1 oracle41411120:13?00:01:33ora_mmon_dave1 oracle41431020:13?00:00:08ora_mmnl_dave1 oracle4145

disk to the SGA shared database buffer (if these data blocks are not currently in SGA) -The returned results allow the application to process the information background process. The processes used by the Oracle DB system are collectively referred to as "background processes". An Oracle DB instance can have multiple background processes. Common background processes in non-RAC and non-ASM environments-DBWn database write process-LGWR log write process-CKPT Checkpoint Process-SMON system monitorin

dedicated background process to perform task queues.The number of background processes is set by job_queue_processes and can be set to 0 to 1000.The *job_queue_interval has been abandoned since 9i.Be aware that if you configure up to 1 000 jnnn processes, you will not see that there are really 1 000 processes starting with the database.Instead, it starts with only one process, the Job Queue Coordinator (CJQ0),It starts the

I. Job ConceptA group of PL/SQL statements used to complete specific functions. It is written by industry experts, and can compare it with our work schedule in our daily work. It will start to work at a certain time in the future, or manually repeat the rows after each interval. Ii. Job, Job Queue, jnnn, Coordinator Job Queue (cjq0) , Dbms_jobJob Queue is translated into Chinese and is called an operator column. A group of slave PL/SQL statements is u

Tags: style color io os using AR strong for fileOne, start the process that executes the jobIn Oracle, it is a background process that uses the job queue of the job queue coordination process (CJQ0), which coordinates the database instance, to monitor the job table (job$) in the job queue and to start the job queue process (JNNN). The job queue jnnn will execute the job request created by the Dbms_jobs pack

all the rows associated with the rollback transaction image in the pending transaction table in the database. Optional Background Processes (Optional Background process) The optional process is any background process (except the mandatory process ). The vast majority of optional background processes are for some tasks or features. For example, the process of Oracle Streams Advanced Queuing (QA) or OracleAutomatic Storage Management (Oracle ASM) is started only when these features are enabled. T

ProcessThe DBRM process implements the resource plan that is configured for a DB instance. It sets the specified resource plan and performs the various actions involved to implement/implement these resource plans. The resource Manager allows the database administrator to fine-grained control over the resources used by the DB instance, the resources used to access the database, or the resources used by individual users to access the database.(GEN0): Common task Execution processThe generic task

feature, but its functional diversity is far less than the scheduling level. 1, scheduler system structure The data dictionary contains a table that is the storage point for all dispatcher jobs. You can query this table through the Dba_scheduler_jobs view. The Job Queue Coordinator background Process CJQ0 Monitor This table, starting the job queue process jnnn to run the job as needed. If the CJBQ0 process is started automatically on any defined, a

exception is the trace file generated by the job queue process (JNNN).Additional information in the trace file can provide guidance for optimizing an application or an instance. The background process always writes this information to the trace file at the appropriate time.From Oracle Database One G, an advanced error diagnosis infrastructure was introduced to avoid, detect, diagnose, and resolve problems.In particular, this feature is targeted at is

. LOG_ARCHIVE_FORMAT specifies the naming rules for archived log files. N RECO (Recoverer) Restoration Process N LCKn (Lock) Lock Process N RVWR (Recovery Writer) flash back the Recovery process N CTWR (Change Tracking Writer) flash back Change Tracking write process N CJQn (Job Queue Monitor) Job Queue monitoring process N Jnnn (Job Queue) Job Queue Process N Dnnn (Dispatcher) scheduling process N Snnn (Shared Server) Shared Server process 2 Compre

buffers consistent among instances. LMSn (Lock Manager server process): mainly maintains the consistency of the SGA block buffer cache among each RAC instance. LOCK process: similar to LMD, But it processes all global resource requests. Tool background process CJQO and Jnnn (Job Queue process): oracle provides the replication feature through a database object called snapshot. Job Queue is the internal mechanism used to refresh snapshots. QMNC and Qnn

required by the ASM instance depends on the amount of disk space managed by the ASM. The second part of the ASM instance is the background process. The ASM instance can have multiple background processes, not all processes always appear. ASM component-ARCn: archiving process-SMON: system monitoring process-PMON: Program monitoring process-DBWn: Database writing process-LGWR: log writing process-CKPT: Checkpoint Process-DIGA: diagnostic process-Jnnn:

resources.A dynamic working queue process can run multiple jobs at a given interval. These event sequences are as follows:1. CJQ0 when the database schedules tasks, the JOB coordination process starts and closes automatically. The JOB coordination process regularly selects jobs for execution from the JOB $ table, and the new jobs are sorted by time.2. The work coordination process dynamically generates a work queue to execute the work from the process (Jnnn