前言

在 linux 上执行jmeter 代码的时候遇到一个问题：There is insufficient memory for the Java Runtime Environment to continue.

报错内容

在 windows 先执行过 get_info.jmx，正常运行，传到 linux 上运行时遇到以下问题

[root@VM_0_2_centos ~]# jmeter -n -t get_info.jmx -l get.jtl
OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000c0000000, 1073741824, 0) failed; error='Cannot allocate memory' (errno=12)
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 1073741824 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /root/hs_err_pid25736.log

从报错可以应该是内存不够用了，free -m 查看内存

[root@VM_0_2_centos ~]# free -m
              total        used        free      shared  buff/cache   available
Mem:           3789        3295         152          12         341         179
Swap:          2047        2047           0

果然 free 内存只有 152 了

解决办法

先清理掉一些不用的进程，释放一些内存出来，再次查看,大于1G，基本上没啥问题了

[root@VM_0_2_centos easymock]# free -m
              total        used        free      shared  buff/cache   available
Mem:           3789        2390         875          12         524        1084
Swap:          2047        1478         569

再次运行

[root@VM_0_2_centos ~]# jmeter -n -t get_info.jmx -l get.jtl
Creating summariser <summary>
Created the tree successfully using get_info.jmx
Starting the test @ Sat May 30 17:01:31 CST 2020 (1590829291939)
Waiting for possible Shutdown/StopTestNow/HeapDump/ThreadDump message on port 4445
summary +      1 in 00:00:00 =    2.8/s Avg:   107 Min:   107 Max:   107 Err:     0 (0.00%) Active: 1 Started: 1 Finished: 0
summary +    299 in 00:00:03 =   86.8/s Avg:    29 Min:    10 Max:   224 Err:     0 (0.00%) Active: 0 Started: 3 Finished: 3
summary =    300 in 00:00:04 =   79.0/s Avg:    30 Min:    10 Max:   224 Err:     0 (0.00%)
Tidying up ...    @ Sat May 30 17:01:36 CST 2020 (1590829296290)
... end of run