Hi Ed, I created a similar UDF some time ago, and if I am not mistaken you have to assume that your file is going to be in the same directory, as in:
path_of_dat_file = "./name_of_file"; And it worked for me, let me know if this solves your issue, and if not, I will look into my old code and see how I did it. regards Eric Arenas ----- Original Message ---- From: Edward Capriolo <[email protected]> To: [email protected] Sent: Tue, February 16, 2010 7:47:30 AM Subject: Re: Working UDF for GeoIP lookup? On Mon, Feb 15, 2010 at 12:02 PM, Edward Capriolo <[email protected]> wrote: > On Mon, Feb 15, 2010 at 11:27 AM, Adam J. O'Donnell <[email protected]> wrote: >> Edward: >> >> I don't have access to the individual data nodes, so I can't install the >> pure perl module. I tried distributing it via the add file command, but that >> is mangling the file name, which causes perl to not load the module as the >> file name and package name dont match. Kinda frustrating, but it is really >> all about trying to work around an issue on amazon's elastic map reduce. I >> love the service in general, but some issues are frustrating. >> >> Sent from my iPhone >> >> On Feb 15, 2010, at 6:05, Edward Capriolo <[email protected]> wrote: >> >>> On Mon, Feb 15, 2010 at 1:29 AM, Adam O'Donnell <[email protected]> wrote: >>>>> >>>>> Hope this helps. >>>>> >>>>> Carl >>>> >>>> How about this... .can I run a standard hadoop streaming job against a >>>> hive table that is stored as a sequence file? The idea would be I >>>> would break my hive query into two separate tasks and do a hadoop >>>> streaming job in between, then pick up the hive job afterwards. >>>> Thoughts? >>>> >>>> Adam >>>> >>> >>> I actually did do this with a streaming job. The UDF was tied up with >>> the apache/gpl issues. >>> >>> Here is how I did this. 1 install geo-ip-perl on all datanodes >>> >>> ret = qp.run( >>> " FROM ( "+ >>> " FROM raw_web_data_hour "+ >>> " SELECT transform( remote_ip ) "+ >>> " USING 'perl geo_state.pl' "+ >>> " AS ip, country_code3, region "+ >>> " WHERE log_date_part='"+theDate+"' and log_hour_part='"+theHour+"' " + >>> " ) a " + >>> " INSERT OVERWRITE TABLE raw_web_data_hour_geo PARTITION >>> (log_date_part='"+theDate+"',log_hour_part='"+theHour+"') "+ >>> " SELECT a.country_code3, a.region,a.ip,count(1) as theCount " + >>> " GROUP BY a.country_code3,a.region,a.ip " >>> ); >>> >>> >>> #!/usr/bin/perl >>> use Geo::IP; >>> use strict; >>> my $gi = Geo::IP->open("/usr/local/share/GeoIP/GeoIPCity.dat", >>> GEOIP_STANDARD); >>> while (<STDIN>){ >>> #my $record = $gi->record_by_name("209.191.139.200"); >>> chomp($_); >>> my $record = $gi->record_by_name($_); >>> print STDERR "was sent $_ \n" ; >>> if (defined $record) { >>> print $_ . "\t" . $record->country_code3 . "\t" . $record->region . "\n" >>> ; >>> print STDERR "return " . $record->region . "\n" ; >>> } else { >>> print "??\n"; >>> print STDERR "return was undefined \n"; >>> } >>> >>> } >>> >>> Good luck. >> > > Sorry to hear that your having problems. It is a fairly simple UDF, > for those familiar writing udf/genudf. You probably could embed the > lookup data file in the jar as well. I meant to build/host this on my > site, but I have not got around to it. If you want to tag team it, I > am interested. > So I started working on this: I packaged geo-ip into a jar: http://www.jointhegrid.com/svn/geo-ip-java/ And I am building a Hive UDF http://www.jointhegrid.com/svn/hive-udf-geo-ip-jtg/ I am running into a problem, I am trying to have the UDF work with two signatures geoip('209.191.139.200', 'STATE_NAME'); geoip('209.191.139.200', 'STATE_NAME', 'path/to/datafile' ); For the first invocation I have bundled the data into the JAR file. I have verified that I can access it: http://www.jointhegrid.com/svn/geo-ip-java/trunk/src/LoadInternalData.java I am trying to do the same thing inside by UDF but I get FileNotFound exceptions. I have also tried adding the file to the distributed cache. add file /home/ecapriolo/encrypted-mount-ec/NetBeansProjects/geo-ip-java/src/GeoIP.dat; add jar /home/ecapriolo/encrypted-mount-ec/NetBeansProjects/geo-ip-java/dist/geo-ip-java.jar; add jar /home/ecapriolo/encrypted-mount-ec/NetBeansProjects/hive-udf-geo-ip-jtg/dist/hive-udf-geo-ip-jtg.jar; create temporary function geoip as 'com.jointhegrid.hive.udf.GenericUDFGeoIP'; select geoip(first,'COUNTRY_NAME', 'GeoIP.dat' ) from a; Any hints ? I did notice a Jira about UDF reading distributed cache, so that may be an issue. I still wonder though why I can not pull the file out of the jar. Any hints? -ed
