将nginx日志导入到hive中的方法
1 在hive中建表
- CREATE TABLE apachelog (ipaddress STRING, identd STRING, user STRING,finishtime STRING,requestline string, returncode INT, size INT,referer string,agent string) ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.dynamic_type.DynamicSerDe'WITH SERDEPROPERTIES ('serialization.format'='org.apache.hadoop.hive.serde2.thrift.TCTLSeparatedProtocol','quote.delim'='("|\\[|\\])','field.delim'=' ','serialization.null.format'='-')STORED AS TEXTFILE;
导入后日志格式为
- 203.208.60.91 - - 05/May/2011:01:18:47 +0800 GET /robots.txt HTTP/1.1 404 1238 Mozilla/5.0
第二种方法导入
注意：这个方法在建表后，使用查询语句等前要先执行
hive> add jar /home/hjl/hive/lib/hive_contrib.jar;
- CREATE TABLE log (host STRING,identity STRING,user STRING,time STRING,request STRING,status STRING,size STRING,referer STRING,agent STRING) ROW FORMAT SERDE 'org.apache.hadoop.hive.contrib.serde2.RegexSerDe' WITH SERDEPROPERTIES ("input.regex" = "([^ ]*) ([^ ]*) ([^ ]*) (-|\\[[^\\]]*\\]) ([^ \"]*|\"[^\"]*\") (-|[0-9]*) (-|[0-9]*)(?: ([^ \"]*|\".*\") ([^ \"]*|\".*\"))?","output.format.string" = "%1$s %2$s %3$s %4$s %5$s %6$s %7$s %8$s %9$s")STORED AS TEXTFILE;
导入后的格式
- 203.208.60.91 - - [05/May/2011:01:18:47 +0800] "GET /robots.txt HTTP/1.1" 404 1238 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
如果文件数据是纯文本，可以使用 STORED AS TEXTFILE。如果数据需要压缩，使用 STORED AS SEQUENCE 。
导入日志命令
hive>load data local inpath '/home/log/map.gz' overwrite into table log;
导入日志支持.gz等格式
参考http://www.johnandcailin.com/blog/cailin/exploring-apache-log-files-using-hive-and-hadoop
