ElasticSearch启动报错问题

最新推荐文章于 2024-05-21 10:08:21 发布

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最新推荐文章于 2024-05-21 10:08:21 发布 · 1.4k 阅读

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文章标签：

#elasticsearch #java #大数据

本文介绍了Elasticsearch部署中常见的问题及解决方案，包括避免使用root用户启动、调整系统内存映射参数，以及配置文件elasticsearch.yml的具体设置，确保集群稳定运行。

一、注意elasticsearch不支持root用户启动

报错

Caused by: java.lang.RuntimeException: can not run elasticsearch as root

解决

groupadd es
//添加用户组
useradd es -g es
//添加用户到用户组
passwd es
//密码
chown -R es:es /usr/local/elasticsearch/
//给es赋权
su es
//进入es用户
./elasticsearch
//在启动

二、max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

解决

vim /etc/sysctl.conf
//编辑
vm.max_map_count = 262144
//在最低下添加
sysctl -p
//生效

三、elasticsearch.yml配置原因报错

示例：

# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
#       Before you set out to tweak and tune the configuration, make sure you
#       understand what are you trying to accomplish and the consequences.
#
# The primary way of confi