shared memory

problem: ORA-04031: Unable to allocate19204bytes of shared memory ("sharedPool","UnknownObject","SGA Heap (1,0)","Session param values") error Reason: The shared memory is too small, the memory allocated to the shared pool is not sufficient to

UNIX and Linux Shared Memory and OracleThe UNIX and LINUX operating systems allocate memory based on a interprocess communication model (IPC) to manage memory s Egments for Oracle database environments.To obtain details on shared memory for UNIX and

Oracle Set Default DatabaseIf we have multiple databases installed on our servers or on our computers, when we use Sqlplus, what database are we logged into when we specify the database? Today we have an old problem:Ora-01034:oracle Not availableOra-

The shared memory model, as its name implies, is the implementation of concurrent models through shared memory, and when multiple threads use shared resources in concurrent execution, such as reading dirty data, invalid data, and so on, if they are

Objective Global shared memory is mainly the MySQL Instance (mysqld process) and the underlying storage engine used to hold all kinds of global operations and shareable temporary information, such as query cache to store queries, caching thread

Reprint to Http://www.server110.com/mysql/201311/2991.htmlThe global shared memory is mostly MySQL Instance (MySQLD process) and the underlying storage engine is used to stage various global operations and shareable staging information, such as

Introduction to MySQL global shared memory Preface The global shared memory is mainly used by MySQL Instance (mysqld process) and the underlying storage engine to store various global operations and shared temporary information, such as the Query

This article mainly introduces the PHP operation shared memory Shmop class and simple use of test code, has a certain reference value, now share to everyone, the need for friends can refer to SIMPLESHM is a small abstraction layer that uses PHP to

System V process Communication Methods: semaphore, Message Queue, and shared Memory)   Semaphores Semaphore is actually an integer whose values are tested and set by multiple processes ). For the test and setup operations that each process is

As needed, I want to map a database file to a memory ing file. After the ing, I will get the first address of the ing file, Code As follows: Void cmdbdlg: onmapfile () { // Open File Hfile =: createfile ("E: \ table1.dbf", generic_read |

Concurrency model-shared memory model (thread and lock) example, model example The shared memory model, as its name implies, implements a concurrency model through shared memory, when multiple threads use shared resources in concurrent execution,

# Include # Include # Include # Include # Include # Include # Include # Include # Derefined segsize 100Void usage (){Fprintf (stderr, "shmtool-a utility for tinkering with shared memory/N ");Fprintf (stderr, "/nusage: shmtool/N ");Fprintf (stderr, "(

An ID value must be specified when the system establishes an IPC communication (such as Message Queuing, shared memory). Typically, this ID value is obtained through the Ftok function.The Ftok prototype is as follows:key_t Ftok (char * fname, int id)

Shared Memory: It is the most efficient communication mechanism in the System V version that allows multiple processes to share the same address space, and if a process modifies that address space, other processes that share the address space can

" do not communicate by sharing memory, to share memory through communication " is a very classic word in the go community, but how do we understand this sentence?The Go Language (goroutine) is developed from a process, a thread, and is lighter than

There is a C # Shared memory class on the Web, but the functionality is too simple, and write memory is written every time from the beginning. Therefore, this has been improved, and made a small example for the needs of the people for reference.

The shared memory zone is the fastest available IPC format. Once such a memory zone is mapped to the address space of the process sharing it, the data transmitted between these processes is no longer transferred to each other by executing any system

We often use computers, and the computer is essential to the operating system. However, Linux is developing very rapidly and is catching up with Microsoft. Here we will introduce the knowledge of Linux, so that you can learn how to use Linux. Today,

Database ora-27100: solution to shared memory realm already exists errors Environment:Operating System Platform Windows Service 2003 R2 x86Database Version: Oracle Enterprise 9.2.0.1 for windows x86 Today a customer database cannot start,

One, shared memory Shared memory is the most efficient way to communicate, because there is no need for a process to be copied to the kernel and another process to read in the kernel. Second, ipcs-m View shared memory Ipcrm-m Deleting shared memory