Recently used Statspack on a customer's 8i production library and found an error in alert:
Mon June 16 13:17:52 2014
Errors in FILE/ORACLE/8.1.7/ADMIN/PROD/BDUMP/SNP0_96626_PROD.TRC:
Ora-12012:error on Auto execute of Job 304
Ora-01631:max # Extents (505) reached in table Perfstat. Stats$sql_summary
Ora-06512:at "Perfstat. Statspack ", line 978
Ora-06512:at "Perfstat. Statspack ", line 1612
Ora-06512:at "Perfstat. Statspack ", line 71
Ora-0651
Label:One, Oracle 11gThe automatic collection of statistics data is available in the 11g version of Oracle. One of the steps in deploying 11g Oracle software during deployment is to prompt for the ability to start this feature (which is enabled by default).Here's how to enable and disable this feature:1. View the tasks and status of automatically collecting statistics:Sql> select Client_name,status from Dba_autotask_client;
Client_name STATUS
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Tags: relational database int operation buffer full City bak body detailed description nloadTags: mssql/log truncation OverviewAlwaysOn in the process of adding a database, if the Sync preferences select "Full", then the full and log backups of copyonly are performed on the primary replica to perform the restore operation on the secondary replica, and it is this operation that gives me a new understanding of copyonly. Although you used to perform a full backup with Copyonly,But the previous unde
I recently used statspack on a 8i production database of the customer and found that alert has an error:
Mon Jun 16 13:17:52 2014Errors in file/oracle/8.1.7/admin/prod/bdump/snp0_96626_prod.trc:ORA-12012: error on auto execute of job 304ORA-01631: max # extents (505) reached in table PERFSTAT. STATS $ SQL _SUMMARYORA-06512: at "PERFSTAT. STATSPACK", line 978ORA-06512: at "PERFSTAT. STATSPACK", line 1612ORA-06512: at "PERFSTAT. STATSPACK", line 71ORA-0
has a parameter ("56000 "). Therefore, the query optimizer can automatically parameterize this query.
If you use the following SELECT statement to view a clean buffer pool that only contains the cache plan for the preceding statement, then you will see the query optimizer override the T-SQL Query into a parameterized T-SQL statement:
Select stats.exe cution_count as CNT,P. size_in_bytes as [size],[SQL]. [text] as [plan_text]From SYS. dm_exec_cached_plans POuter apply SYS. dm_e
The following is an automatic backup method that I have confirmed is available.
1. Choose Enterprise Manager> Manage> SQL server proxy.
2. Create a new job and take the job name as needed. For example, for data backup, select sa as the owner. Of course, you can select another user, provided that the user has the permission to execute the job;
3. Click the step tab to go to the step panel. Create a step. You can enter the step name as needed, such as step 1. The default type and database do not n
corresponding to the serverId is forcibly redirected to another server after it fails.
Retries 3 -- defines that the server is unavailable when the connection fails three times.Timeout http-request 10 sTimeout queue 1 mTimeout connect 10 s -- server connection timeoutTimeout client 1 m -- client Connection timeoutTimeout server 1 m -- server connection timeoutTimeout http-keep-alive 10 s -- persistent connectionTimeout check 10 s -- heartbeat check timeoutMaxconn 3000
Listen admin_status -- cu
The following is an automatic backup method that I have confirmed is available. For more information, see.
The following is an automatic backup method that I have confirmed is available. For more information, see.
The following is an automatic backup method that I have confirmed is available.
1. Choose Enterprise Manager> Manage> SQL server proxy.
2. Create a new job and take the job name as needed. For example, for data backup, select sa as the owner. Of course, you can select another user, pr
protocol to pause sending the data. Furthermore, the loopback network card is a virtual network card and does not require data to be sent to the register. In this function we simply count the length of the data and the number of packets, and then send the packet back to the upper layer protocol stack.Then the view state functionStatic struct net_device_stats *lo_get_stats (struct net_device *Dev) { struct net_ Device_stats *stats = dev->
Chroot/var/lib/haproxy pidfile/var/run/haproxy.p ID maxconn 4000 Stats socket/run/haproxy/admin.sock mode 660 level admin stats timeout 30s user Haproxy gr OUP haproxy Daemon # Default SSL material Locations Ca-base/etc/ssl/certs Crt-base/etc/ssl/private # Defa Ult ciphers to use on ssl-enabled listening sockets. # For more information, see Ciphers (1SSL). This list was from: # https://hynek.me/articles
roundrobin server mysql-1 10.0.0.1:3306 check server mysql-2 10.0.0.2:3306 checkUnlike HTTP load balancing HAProxy doesn ' t has a specific "mode" for MySQL so we use TCP. We ' ve set HAProxy to listen-only in the loopback address (assuming that application are on the same server) however if your Application resides on a different droplet make it listen on 0.0.0.0 or the private IP address.We need one more configuration block to see the statistics of the load balancing. This is completely
directories that could has a. htaccess file. Let's say added a. htaccess in/, Files/and images/. That ' s three. htaccess files. That ' s pretty typical.Now the numbers, that ' s 6 file system stats and 4 file system reads. Including one for the requested file. This happens for every read. We ' ll ignore parsing time because both Nginx and Apache need to does this and we'll consider the difference in time for this Negligible.
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