Question

我最近将我的机器从Ubuntu 14.04升级到16.04。我遇到使用elasticsearch作为服务的问题。我installed elasticsearch使用：

sudo apt-get install elasticsearch

现在sudo service elasticsearch status命令显示了这个结果：

elasticsearch.service - LSB: Starts elasticsearch
   Loaded: loaded (/etc/init.d/elasticsearch; bad; vendor preset: enabled)
   Active: active (exited) since Sat 2016-07-30 18:28:13 BDT; 1h 19min ago
     Docs: man:systemd-sysv-generator(8)
 Main PID: 7988 (code=exited, status=1/FAILURE)
   CGroup: /system.slice/elasticsearch.service

Jul 30 18:28:13 dimik elasticsearch[10266]: [warning] /etc/init.d/elasticsearch: No java runtime was found
Jul 30 18:28:13 dimik systemd[1]: Started LSB: Starts elasticsearch.
Jul 30 18:28:46 dimik systemd[1]: Started LSB: Starts elasticsearch.
Jul 30 18:35:30 dimik systemd[1]: Started LSB: Starts elasticsearch.
Jul 30 19:04:36 dimik systemd[1]: Started A search engine.
Jul 30 19:07:48 dimik systemd[1]: Started A search engine.
Jul 30 19:27:01 dimik systemd[1]: Started A search engine.
Jul 30 19:27:51 dimik systemd[1]: Started A search engine.
Jul 30 19:28:54 dimik systemd[1]: Started A search engine.
Jul 30 19:29:18 dimik systemd[1]: Started LSB: Starts elasticsearch.

虽然我的机器上安装了Java，但我可以使用此命令启动服务器。

sudo /usr/share/elasticsearch/bin/elasticsearch

我有点被困在这里。任何帮助将不胜感激。

修改

为root设置JAVA_HOME后出现错误：

elasticsearch.service - LSB: Starts elasticsearch
   Loaded: loaded (/etc/init.d/elasticsearch; bad; vendor preset: enabled)
   Active: active (exited) since Sat 2016-07-30 18:28:13 BDT; 3h 32min ago
     Docs: man:systemd-sysv-generator(8)
 Main PID: 7988 (code=exited, status=1/FAILURE)
   CGroup: /system.slice/elasticsearch.service

Jul 30 18:35:30 dimik systemd[1]: Started LSB: Starts elasticsearch.
Jul 30 19:04:36 dimik systemd[1]: Started A search engine.
Jul 30 19:07:48 dimik systemd[1]: Started A search engine.
Jul 30 19:27:01 dimik systemd[1]: Started A search engine.
Jul 30 19:27:51 dimik systemd[1]: Started A search engine.
Jul 30 19:28:54 dimik systemd[1]: Started A search engine.
Jul 30 19:29:18 dimik systemd[1]: Started LSB: Starts elasticsearch.
Jul 30 20:02:07 dimik systemd[1]: Started LSB: Starts elasticsearch.
Jul 30 20:20:21 dimik systemd[1]: Started LSB: Starts elasticsearch.
Jul 30 21:59:21 dimik systemd[1]: Started LSB: Starts elasticsearch.

Answer 1

我找到了解决这个问题的方法。解决方案来自弹性网站上的讨论主题Can’t start elasticsearch with Ubuntu 16.04。

似乎要让Elasticsearch在16.04上运行，您必须在START_DAEMON上将/etc/default/elasticsearch设置为true。默认情况下它会被注释掉，并且取消注释它会使Elasticsearch再次启动。

请务必使用systemctl restart代替start，因为。{    服务在安装后立即开始，显然有    socket/pidfile/something保留必须释放的systemd个/* Input incrementer*/ $(".numbers-row").append('<div class="inc button_inc">+</div><div class="dec button_inc">-</div>'); $(".button_inc").on("click", function () { var $button = $(this); var oldValue = $button.parent().find("input").val(); if ($button.text() == "+") { var newVal = parseFloat(oldValue) + 1; } else { // Don't allow decrementing below zero if (oldValue > 1) { var newVal = parseFloat(oldValue) - 1; } else { newVal = 0; } } $button.parent().find("input").val(newVal); }); });    在能够再次启动服务之前。

Answer 2

问题在于日志文件，＆＃34;没有找到java运行时。＆＃34;

Jul 30 18:28:13 dimik elasticsearch[10266]: [warning] /etc/init.d/elasticsearch: No java runtime was found

这是我解决问题的方法。

检查elasticsearch init文件

sudo nano /etc/init.d/elasticsearch

搜索

. /usr/share/java-wrappers/java-wrappers.sh
find_java_runtime openjdk8 oracle8 openjdk7 oracle7 openjdk6 sun6 default
export JAVA_HOME

检查java-wrappers.sh文件

sudo nano /usr/share/java-wrappers/java-wrappers.sh

现在您可以看到警告来自

#Displays a warning
java_warning() {
    echo "[warning] $0: $@" >&2;
}

不知何故，java目录未在jvm-list.sh文件中列出

现在编辑jvm-list.sh文件

sudo nano /usr/lib/java-wrappers/jvm-list.sh

编辑行添加你的java目录文件，在我的例子中添加/ usr / lib / jvm / java-8-oracle *

__jvm_oracle8="/usr/lib/jvm/jdk-8-oracle-* /usr/lib/jvm/jre-8-oracle-* /usr/lib/jvm/java-8-oracle*"

现在重启服务并检查elasticsearch服务

sudo systemctl restart elasticsearch
sudo systemctl elasticsearch status
curl -X GET＆＃34; http://localhost:9200＆＃34;

希望这会有所帮助

Answer 3

在编辑器中打开/etc/init.d/elasticsearch文件，注释下面的行

. /usr/share/java-wrappers/java-wrappers.sh
find_java_runtime openjdk8 oracle8 openjdk7 oracle7 openjdk6 sun6 default

手动设置JAVA_HOME：

export JAVA_HOME="/usr"

service elasticsearch start

Answer 4

我的问题不同了，我以root用户手动启动了elasticsearch，因此创建了一些文件但是弹性搜索用户无法在其上书写。

您可以测试手动弹性搜索：

sudo -u elasticsearch /usr/share/elasticsearch/bin/elasticsearch \
 -Des.default.config=/etc/elasticsearch/elasticsearch.yml \
 -Des.default.path.home=/usr/share/elasticsearch \
 -Des.default.path.logs=/var/log/elasticsearch \
 -Des.default.path.data=/var/lib/elasticsearch \
 -Des.default.path.work=/tmp/elasticsearch \
 -Des.default.path.conf=/etc/elasticsearch

要修理我的机器，我必须这样做：

rm -rf /var/log/elasticsearch/*
rm -rf /var/lib/elasticsearch/*

无法在ubuntu 16.04中将elasticsearch作为服务启动

4 个答案: