kafka启动报错

在Linux服务器上第一次搭建kafka环境，启动时报错，大概意思是内存不足。

Java HotSpot(TM) 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:
# /usr/local/kafka/hs_err_pid27839.log

解决办法：

打开kafka安装位置，在bin目录下找到kafka-server-start.sh文件，将

export KAFKA_HEAP_OPTS="-Xmx1G -Xms1G"修改为

export KAFKA_HEAP_OPTS="-Xmx256M -Xms128M"。

然后重新启动，运行成功就可以了。