Kafka—Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000c0000000, 1073741824, 0) failed; error='Cannot allocate memory' (errno=12)

一、问题

配置完Kafka后，启动Kafka时提示如下问题：

[ck@hadoop102 kafka_2.12-2.6.1]$ bin/kafka-server-start.sh config/server.properties &
[1] 25679
[ck@hadoop102 kafka_2.12-2.6.1]$ 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:
# /opt/module/kafka_2.12-2.6.1/hs_err_pid25679.log

二、原因

执行：vi  bin/kafka-server-start.sh 命令

服务器内存过小，需调整大小

三、解决办法

修改为：export KAFKA_HEAP_OPTS="-Xmx512M -Xms512M"