The rfs process that is doing the network read operation is blocked until more data arrives or until the operating systems network software determines that the. The os process number generated by your join makes more sense for me. The fal server is a background oracle process that services the incoming requests from the fal client. Im used to the kill 9 syntax in unix for killing an oracle process, but i dont know how to kill an oracle process on windows. The goal is to trace the remote file server rfs process in physical standby database. Hi, any idea why rfs process count keeps on increasing day by day. Generating a rfs process trace file may be necessary, for example to diagnose high disk io at the standby database. However, it can be located on another standby database. Data guard is the name for oracles standby database solution, used for disaster recovery and high availability. Wakeup monitor process maximum 1 wmon this process was available in older versions of oracle to alarm other processes that. Data guard is the name for oracle s standby database solution, used for disaster recovery and high availability. The remote file server rfs process receives redo data from the primary.
On the standby site an rfs process remote file server will get the data and write it to the standby logs. Since its windows, you can go to control panel administrative tools services. On the remote destination, the remote file server process rfs will, in turn, write the redo data to. Its possible to upgrade the oracle database software version with almost no. You can specify a time interval in minutes to protect against the application of corrupted or erroneous data to the standby database. Killing 1 processes with pids 15391 idle rfs by threadsequence in order to retry receiving a log after reattaching.
Physical standby processes architecture apply redo logs. Standby db windows service anlegen um db in nomount modus starten zu konnen. Oracle white papersetting up oracle 11g data guard for sap customers efficient utilization of system resources a physical standby database can be used for backups and readonly reporting, thereby reducing the primary database workload and saving valuable cpu and io cycles. Note you must replace oracle service name and oracle sid with the oracle database service name and the sid of the oracle database service, respectively. To shut down a physical standby database and stop redo apply, use the sqlplus shutdown statement. Since we dont touch all of the sga unless you make us with prepagesga parameters you might not see free memory go down straight away until we touch the memory it could easily be paged out. Hi are you really sure you use the same passwordfile of primary db at the level of the standby db. When the production database receives this acknowledgement, it. In windows, the thread model is used, and oracle dispatches his own background tasks within the domain of the single process, oracle. Oracle database service startup process stops responding.
Data guard check rfs server is working oct 27, 2007. The service name for the standby instance is not configured correctly in the. After doing some research work i found the following solution. Ask tom processes parameter in oracle oracle ask tom. The experiences, test cases, views, and opinions expressed in this website are my own and does not reflect the views or opinions of my employer this site is independent of and does not represent oracle corporation in any way. This article gives an example of the setup and administration of data guard using the data guard broker. Oct 08, 20 fatdba or oracle ant is an independent webblogsite. If you are using reports server as an in process server the default configuration, sending a run report request starts the in process server. Oracle does not officially sponsor, approve, or endorse this site or its content. The capture process name is cp nn, where nn can include letters and numbers. The underlying logminer process name is ms nn, where nn can include letters and numbers. Sep 1 is the database started time which also supposed to be the application started time.
Control is not returned to the session that initiates a database shutdown until shutdown is complete. How do you see details on the oracle background processes on windows. How to resolve mrp stuck issues on a physical standby database. How to check oracle process using command in windows. Same question for standby database also in what mode archivenoarchive i need to run standby database so i can switch over whenever its required. Oracle white paper setting up oracle 11g data guard for sap customers efficient utilization of system resources a physical standby database can be used for backups and readonly reporting, thereby reducing the primary database workload and saving valuable cpu and io cycles. Redo data sent is received by the rfs remote file server process on the standby database side.
Rfs remote file server process in data guard, the remote file server process on the standby database receives archived redo logs from the primary database. One cool feature of using kerberos authentication is that when you have a tgt ticket granting ticket in the ticket cache the oracle client software can use that to get a service ticket and log you into the database without further asking for any. Posted by fatdba on november 12, 20 not feeling well today, but as its been a long time since i wrote my last article on oracle database issues here i am back again with one of the problem that we faced in our production database of our erstwhile customer, some time ago. In most cases, the fal server is located on a primary database. The capture process includes one reader server that reads the redo log and divides it into regions, one or more preparer servers that scan the redo log, and one builder server that. Figure 55 shows the lns n process collecting redo data from the online redo log files and transmitting it over oracle net to the rfs process on the standby database. Ask tom sga and background process memory allocation.
Rfs is background process on standby side which receives the redo data and writes it to a standby redo log srl. The value is an oracle net service name, which is assumed to be configured properly on the fal server system to point to the fal client standby database. Jan 12, 2015 the rfs process runs on the standby database and is responsible for communication between the primary and the standby database. When i view oracle processes on windows, all i see is one background process called oracle. Using tasklist command oracle dba can able to trace all running processes in windows including oracle, sqlplus, exp, imp and others. For log apply services to automatically identify and resolve archive gaps, you must. Rac node eviction after rfs processes being killed. Oracle database exadata express cloud service version na and later oracle cloud infrastructure database service version na and later information in this document applies to any platform. Dec 30, 2015 the value is an oracle net service name, which is assumed to be configured properly on the fal server system to point to the fal client standby database. Rfs process successfully running, archive logs successfully shipped from primary server to standby, but archive logs did not apply. Nov 21, 2011 hi, any idea why rfs process count keeps on increasing day by day.
Oracle database and ebs solutions on linux windows. Also, if the raw device path names are not the same on the primary and. How to trace the remote file server rfs process in. The lns process automatically reads the online redo logs of the primary database if the corresponding redo data cannot be accessed from redo buffer. Rfs remote file server the remote file server rfs process receives the redo data and writes it to a standby redo log srl. This rfs process uses network messages from the primary database. Note you may notice that the instance of oracle database starts successfully.
The rfs process, which is required when archiving to a remote destination. Hardware and operating system requirements oracle software requirements. Using tasklist command oracle dba can able to access process ids, session ids, cpu time, and modules of running processes in oracle on windows. Data guard background processes tips burleson oracle consulting. In one of the standby database documentaion i have seen the standby database is kept constantly in recovery mode. In redo blocks starting at block 5169count 2048 for thread 1 sequence 72899 deleted oracle managed file. Note you must replace and with the oracle database service name and the sid of the oracle database service, respectively run the orastart. Your problem is, you cannot remotely connect with sys, once this solved, your issue is solved as well. When the lgwr and async attributes are specified, the log writer process writes to the local online redo log file, while the network server lns n processes one for each. Specifying the mode of log transmission oracle docs. Oracle offers a comprehensive and fully integrated stack of cloud applications and platform services. If the primary database is up and running, defer the destination on the primary database and perform a log switch before. Data guard background processes tips burleson consulting.
Stop and start log shipping for an oracle standby database. For our example, we use prd and prdstby to differentiate the two sites, and sap is installed in windows. View 6 replies view related data guard create standby server high availability. Handling oracle data guard disconnects logicalread. The rfs process runs on the standby database and is responsible for. The rfs process is transferring the log sequence 473, which is the current log. The oracle database writes an audit trail of the archived redo log files received from the primary database into a trace file. In unix, we can simply issue a kill 9 to kill a running process. The rfs process communicates with the logical standby process lsp to coordinate and record which files arrived. The previous query output shows that an rfs process completed archiving a redo.
In windows server, we have several options for killing processes. One cool feature of using kerberos authentication is that when you have a tgt ticket granting ticket in the ticket cache the oracle client software can use that to get a service ticket and log you into the database without further. I am going to open another tar and request oracle co. For the log transport service, the rfs on the standby database receives the redo records from the archiver or the log writer process of the primary database over oracle net and writes to filesystem on the standby site. My oracle support provides customers with access to over a million knowledge articles and a vibrant support community of peers and oracle experts. Fatdba or oracle ant is an independent webblogsite. If the mrp0 or mrp process exists, then the standby database is applying redo. Jun 18, 2012 rfs process successfully running, archive logs successfully shipped from primary server to standby, but archive logs did not apply.
The received redo data is processed into the standby redo log files with the rfs process. Specify unique names for primary and standby databases. Selected log 12 for thread 1 sequence 9902 dbid 1853001179 branch 864558941. Oracle application dba oracle database and ebs solutions on linux windows. The remote file server rfs process writes the redo data to standby redo log files on the standby database. Update 08jun2018 this bug has been fixed with the oracle 19. As the remote file server rfs process writes the redo data to standby redo log files. In some cases, you may want to c reate a time lag between the time when redo data is received from the primary site and when it is applied to the standby database. Automate the startup of the oracle services by using windows resource kit utilities. Oraclebase data guard physical standby setup using the. The experiences, test cases, views, and opinions expressed in this website are my own and does not reflect the views or opinions of my employer.
Oracle 11g 12c eine standby datenbank mit oracle data guard aufsetzen. Windows platform both primary and standby banneroracle database 11g enterprise edition release 11. Wakeup monitor process maximum 1 wmon this process was available in older versions of oracle to alarm other processes that are suspended while waiting for an event to occur. In real application cluster configuration, node eviction seen when rfs processes being killed after possible network disconnect errors. Note you may notice that the instance of oracle database starts successfully method 2. Time for action monitoring redo apply oracle data guard 11gr2. The default behavior of the broker is to start the realtime apply once the standby database is running. Data guard normally ships redo as it is generated, data guard does not normally wait for an archive redo log to fill up. Oracle data guard redo transport services database tutorials. This site is independent of and does not represent oracle corporation in any way.
This parameter specifies the network service name that the standby database. Setting up oracle 11g data guard for sap customers. Oracle database then translates the service name, through the tnsnames. Ask tom rfs not starting for standby oracle ask tom. Qmn queue monitor process qmnn used to manage oracle streams advanced queuing. Windows platform both primary and standby banner oracle database 11g enterprise edition release 11. Lns log network server sends redo data read from redo log buffer in process sga to ons oracle net service service. Mar 16, 2020 killing 1 processes with pids 15391 idle rfs by threadsequence in order to retry receiving a log after reattaching. Rfs sends an acknowledgement back to the production database that the redo has been received and written to disk. Perceiving database alert log, few of the rfs processes being killed due to possible network disconnect errors and media recovery being stuck. If data guard did that you would always be behind by an archive redo log at least you would lose lots of data during a failover. The lns log network service process reads the same redo data from the redo buffer section and reports to the rfs remote file service process via the ons oracle net service. The rfs process runs on the standby database and is responsible for communication between the primary and the standby database. Mar 05, 2020 in real application cluster configuration, node eviction seen when rfs processes being killed after possible network disconnect errors diagnosis excerpts from database alert log.