小编Sou*_*jan的帖子

我想下载所有发布的数据摘要。有谁知道我如何轻松下载所有已发表的文章摘要？

我得到了数据的来源：ftp : //ftp.ncbi.nlm.nih.gov/pub/pmc/af/12/

反正有没有下载所有这些tar文件..

提前致谢。

我开始使用Spark了.

我在启动火花时遇到了问题.

我从spark官方网站下载,我试图从这个https://spark.apache.org/docs/0.9.0/quick-start.html快速启动

我已下载,设置sparkhome.,当我尝试从bin目录运行./pyspark时出现此错误:

soundarya@soundarya:~/Downloads/spark-1.5.0/bin$ sudo ./pyspark
[sudo] password for soundarya: 
ls: cannot access /home/soundarya/Downloads/spark-1.5.0/assembly/target/scala-2.10: No such file or directory
Failed to find Spark assembly in /home/soundarya/Downloads/spark-1.5.0/assembly/target/scala-2.10.
You need to build Spark before running this program.
soundarya@soundarya:~/Downloads/spark-1.5.0/bin$ 

任何人都可以帮我解决这个问题吗？

我试图从Kafka获取数据并将其推送到ElasticSearch.

这是我正在使用的logstash配置:

input {
kafka {
zk_connect => "localhost:2181"
topic_id => "beats"
}
}
output {
elasticsearch {
hosts => ["localhost:9200"]
index => "elasticse"
}
}

任何人都可以使用logstash配置帮助吗？如果我运行这个我得到无效的配置错误.

D:\logstash-5.0.0\bin>logstash -f log-uf.conf
Sending Logstash logs to D:\logstash-5.0.0\logs\logstash-plain.txt which is now
configured via log4j2.properties.
[2016-11-11T16:31:32,429][ERROR][logstash.inputs.kafka    ] Unknown setting 'zk_
connect' for kafka
[2016-11-11T16:31:32,438][ERROR][logstash.inputs.kafka    ] Unknown setting 'top
ic_id' for kafka
[2016-11-11T16:31:32,452][ERROR][logstash.agent           ] fetched an invalid c
onfig {:config=>"input {\n   kafka {\n   zk_connect => \"localhost:2181\"\n   to
pic_id => \"beats\"\n   consumer_threads => 16\n  }\n}\noutput {\nelasticsearch …