详解Docker无法正常启动的原因及解决办法_docker启动没反应资源-CSDN文库

Docker无法正常启动

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详解详解Docker无法正常启动的原因及解决办法无法正常启动的原因及解决办法

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一、一、Docker启动异常表现：启动异常表现：

1.状态反复restaring，用命令查看

$docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

21c09be88c11 docker.xxxx.cn:5000/xxx-tes/xxx_tes:1.0.6 "/usr/local/tomcat..." 9 days ago Restarting (1) Less than a second ago xxx10

2.Docker日志有明显问题：

$docker logs [容器名/容器ID]

二、二、Docker启动异常的可能原因：启动异常的可能原因：

2.1.内存不够内存不够

Docker 启动至少需要2G内存，首先执行free -mh命令查看剩余内存是否足够

直接查看内存直接查看内存

$free -mh

total used free shared buff/cache available

Mem: 15G 14G 627M 195M 636M 726M

Swap: 0B 0B 0B

分析日志分析日志

有时候一瞬间内存过载溢出，导致部分进程被杀死，看起来内存也是够用的，事实上docker还是会反复重启，就需要通过docker日志

和系统日志信的息来进一步分析：

分析分析docker日志日志

查看docker日志看到内存溢出的信息，要仔细翻阅才能找到信息，并不是在最下面

$docker logs [容器名/容器ID]|less

Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000769990000, 1449590784, 0) failed; error='Cannot allocate memory' (errno=12)

# There is insufficient memory for the Java Runtime Environment to continue.

# Native memory allocation (malloc) failed to allocate 1449590784 bytes for committing reserved memory.

# An error report file with more information is saved as:

# //hs_err_pid1.log

Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000769990000, 1449590784, 0) failed; error='Cannot allocate memory' (errno=12)

# There is insufficient memory for the Java Runtime Environment to continue.

# Native memory allocation (malloc) failed to allocate 1449590784 bytes for committing reserved memory.

# An error report file with more information is saved as:

# /tmp/hs_err_pid1.log

Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000769990000, 1449590784, 0) failed; error='Cannot allocate memory' (errno=12)

# There is insufficient memory for the Java Runtime Environment to continue.

# Native memory allocation (malloc) failed to allocate 1449590784 bytes for committing reserved memory.

# Can not save log file, dump to screen..

# There is insufficient memory for the Java Runtime Environment to continue.

# Native memory allocation (malloc) failed to allocate 1449590784 bytes for committing reserved memory.

# Possible reasons:

# The system is out of physical RAM or swap space

# In 32 bit mode, the process size limit was hit

# Possible solutions:

# Reduce memory load on the system

# Increase physical memory or swap space

# Check if swap backing store is full