bitsCN.com
mysql_error:Error starting thread:Resource temporarily unavailable
Sql代码
121031 18:53:17 InnoDB: Unable to open the first data file
InnoDB: Error in opening ./ibdata1
121031 18:53:17 InnoDB: Operating system error number 11 in a file operation.
InnoDB: Error number 11 means 'Resource temporarily unavailable'.
InnoDB: Some operating system error numbers are described at
InnoDB: http://dev.mysql.com/doc/refman/5.5/en/operating-system-error-codes.html
121031 18:53:17 InnoDB: Could not open or create data files.
121031 18:53:17 InnoDB: If you tried to add new data files, and it failed here,
121031 18:53:17 InnoDB: you should now edit innodb_data_file_path in my.cnf back
121031 18:53:17 InnoDB: to what it was, and remove the new ibdata files InnoDB created
121031 18:53:17 InnoDB: in this failed attempt. InnoDB only wrote those files full of
121031 18:53:17 InnoDB: zeros, but did not yet use them in any way. But be careful: do not
121031 18:53:17 InnoDB: remove old data files which contain your precious data!
121031 18:53:17 [ERROR] Plugin 'InnoDB' init function returned error.
121031 18:53:17 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
121031 18:53:17 [ERROR] Unknown/unsupported storage engine: INNODB
121031 18:53:17 [ERROR] Aborting
121031 18:53:17 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete
121031 18:53:17 mysqld_safe mysqld from pid file /data/mysql/mysql_3301/mysql_3301.pid ended
121031 18:54:29 mysqld_safe Starting mysqld daemon with databases from /data/mysql/mysql_3301
121031 18:54:29 [Warning] The syntax '--log-slow-queries' is deprecated and will be removed in a future release. Please use '--slow-
query-log'/'--slow-query-log-file' instead.
121031 18:54:29 InnoDB: The InnoDB memory heap is disabled
121031 18:54:29 InnoDB: Mutexes and rw_locks use GCC atomic builtins
121031 18:54:29 InnoDB: Compressed tables use zlib 1.2.3
121031 18:54:30 InnoDB: Initializing buffer pool, size = 2.9G
121031 18:54:30 InnoDB: Completed initialization of buffer pool
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
121031 18:54:30 InnoDB: Retrying to lock the first data file
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
121031 18:54:30 InnoDB: Retrying to lock the first data file
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
InnoDB: Unable to lock ./ibdata1, error: 11
InnoDB: Check that you do not already have another mysqld process
InnoDB: using the same InnoDB data or log files.
InnoDB: Unable to lock ./ibdata1, error: 11
Sql代码
InnoDB: Error number 11 means 'Resource temporarily unavailable'.
Error starting thread: Resource temporarily unavailable
经过深入查询，排除了内存，句柄数等问题. 并且切换至root用户打开大量线程时没有问题。试着调整ulimit各项参数,最后发现是"max user processes "参数有问题，通过root用户调整大小至 12000,线程数也随着增大.
Java代码
root@blog:/home/badqiu# ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 143360
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 2048
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 2046
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
在linux系统内生效。
vi /etc/security/limits.conf
Java代码
* soft nproc 12000
* hard nproc 12000
nproc就是"max user processes"，完整描述是: nproc - max number of processes
参数含义:
单个用户可以启动的线程数，因为进程也会启动一个线程，所以也间接对进程数有限制。
注意：
该参数只对普通用户有用，root用户不在此限制。 所以用root用户可以启动几万个线程，无法重现这个问题.
bitsCN.com
Reduce the use of MySQL memory in DockerMar 04, 2025 pm 03:52 PMThis article explores optimizing MySQL memory usage in Docker. It discusses monitoring techniques (Docker stats, Performance Schema, external tools) and configuration strategies. These include Docker memory limits, swapping, and cgroups, alongside
How to solve the problem of mysql cannot open shared libraryMar 04, 2025 pm 04:01 PMThis article addresses MySQL's "unable to open shared library" error. The issue stems from MySQL's inability to locate necessary shared libraries (.so/.dll files). Solutions involve verifying library installation via the system's package m
How do you alter a table in MySQL using the ALTER TABLE statement?Mar 19, 2025 pm 03:51 PMThe article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.
Run MySQl in Linux (with/without podman container with phpmyadmin)Mar 04, 2025 pm 03:54 PMThis article compares installing MySQL on Linux directly versus using Podman containers, with/without phpMyAdmin. It details installation steps for each method, emphasizing Podman's advantages in isolation, portability, and reproducibility, but also
What is SQLite? Comprehensive overviewMar 04, 2025 pm 03:55 PMThis article provides a comprehensive overview of SQLite, a self-contained, serverless relational database. It details SQLite's advantages (simplicity, portability, ease of use) and disadvantages (concurrency limitations, scalability challenges). C
Running multiple MySQL versions on MacOS: A step-by-step guideMar 04, 2025 pm 03:49 PMThis guide demonstrates installing and managing multiple MySQL versions on macOS using Homebrew. It emphasizes using Homebrew to isolate installations, preventing conflicts. The article details installation, starting/stopping services, and best pra
How do I configure SSL/TLS encryption for MySQL connections?Mar 18, 2025 pm 12:01 PMArticle discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]
What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)?Mar 21, 2025 pm 06:28 PMArticle discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software
Atom editor mac version download
The most popular open source editor
VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
Dreamweaver CS6
Visual web development tools
