|NO.Z.00001|——————————|^^ 报错 ^^|——|Hadoop&kafka.V01|——|kafka.v01|报错处理&内存不足|

附录一：报错处理一：

### --- 报错现象：

[root@hadoop01 ~]# kafka-server-start.sh /opt/yanqi/servers/kafka_2.12/config/server.properties
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:
# /root/hs_err_pid7398.log

### --- 报错分析：

~~~     # 内存不足：默认是1G
[root@hadoop01 ~]# vim /opt/yanqi/servers/kafka_2.12/bin/kafka-server-start.sh
 
if [ "x$KAFKA_HEAP_OPTS" = "x" ]; then
    export KAFKA_HEAP_OPTS="-Xmx1G -Xms1G"
fi

### --- 解决方案：

~~~     # 调整内存参数
~~~     调整为如下参数
[root@hadoop01 ~]# vim /opt/yanqi/servers/kafka_2.12/bin/kafka-server-start.sh
 if [ "x$KAFKA_HEAP_OPTS" = "x" ]; then
    export KAFKA_HEAP_OPTS="-Xmx256M -Xms128M"
fi

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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