我想激活 elasticsearch 的日志。
当我运行 elasticsearch 二进制文件时，我意识到我在日志记录方面遇到问题：无法加载配置！
这是输出：
~ $ sudo /usr/share/elasticsearch/bin/elasticsearch
Failed to configure logging...
org.elasticsearch.ElasticsearchException: Failed to load logging configuration
at org.elasticsearch.common.logging.log4j.LogConfigurator.resolveConfig(LogConfigurator.java:117)
at org.elasticsearch.common.logging.log4j.LogConfigurator.configure(LogConfigurator.java:81)
at org.elasticsearch.bootstrap.Bootstrap.setupLogging(Bootstrap.java:94)
at org.elasticsearch.bootstrap.Bootstrap.main(Bootstrap.java:178)
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:32)
Caused by: java.nio.file.NoSuchFileException: /usr/share/elasticsearch/config
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:86)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixFileAttributeViews$Basic.readAttributes(UnixFileAttributeViews.java:55)
at sun.nio.fs.UnixFileSystemProvider.readAttributes(UnixFileSystemProvider.java:144)
at sun.nio.fs.LinuxFileSystemProvider.readAttributes(LinuxFileSystemProvider.java:97)
at java.nio.file.Files.readAttributes(Files.java:1686)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:109)
at java.nio.file.FileTreeWalker.walk(FileTreeWalker.java:69)
at java.nio.file.Files.walkFileTree(Files.java:2602)
at org.elasticsearch.common.logging.log4j.LogConfigurator.resolveConfig(LogConfigurator.java:107)
... 4 more
log4j:WARN No appenders could be found for logger (node).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Java HotSpot(TM) Server VM warning: You have loaded library /usr/share/elasticsearch/lib/sigar/libsigar-x86-linux.so which might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.
我在 linuxmint 17 下运行并使用最新的 ES。
如果您使用像这样的包管理器安装了elasticsearchyum or apt-get你不应该以这种方式启动elasticsearch。尝试使用该服务：例如/etc/init.d/elasticsearch或使用命令sudo service elasticsearch start
您还应该检查logging.yml文件是否位于堆栈跟踪中提到的位置：/usr/share/elasticsearch/config
Using sudo启动elasticsearch不太好，你可以这样做sudo elasticsearch以elasticsearch用户身份运行，但我更喜欢使用第二句中描述的服务调用。
希望有帮助
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