Infolab wiki
Differences between revisions 2 and 4 (spanning 2 versions)
|
Size: 4997
Comment:
|
Size: 1025
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = Spinn3r dataset = | = Spinn3r data set on Hadoop cluster = |
| Line 3: | Line 3: |
| === Zarya === | This page provides all informaton about Spinn3r data set stored on Hadoop cluster. |
| Line 5: | Line 5: |
| Zarya is our main crawler that downloads data from spinn3r.com. | === Data records versions === There are several verison in which the records are stored. It is important to know which version are you processings, since depending on the version you know what fields are available for this record and how the text was preprocessed. For example, in some versions there is no capital letters, no raw html fileds, etc. || '''From''' || '''To''' || '''Version'''|| || 2008-08-01 || 2010-07-13 || A || || 2010-07-14 || 2010-07-26 || B || || 2010-07-27 || 2013-04-30 || C || || 2013-05-01 || 2014-05-30 || D || || 2014-06-01 || ... || E || |
| Line 7: | Line 15: |
| ==== Dataset directories ==== * full3: /lfs/1/tmp/spinn3r-full3/ ==== Crawler ==== * /lfs/1/tmp/spinn3r-client/runclient.sh * Runs every hour: 0:00, 1:00, 2:00, ... ==== Copy data to Hulk ==== This script copies the daily downloaded data to hulk.Stanford.EDU. {{{ /u/snap/spinn3r/ rsync-spinn3r-full3-to-hulk.sh # Copies all the daily spinn3r data from zarya to hulk log/ rsync-spinn3r-full3-to-hulk.log # The rsync log file }}} The script is run from crontab as the snap user: * '''2:45am''': rsync-spinn3r-full3-to-hulk.sh In order for the script to work, the snap user on zarya needs a valid kerberos ticket for the cs domain. You can check this with running klist as the snap user on zarya. The output for a valid ticket dshould look something like this: {{{ Valid starting Expires Service principal 08/31/12 10:31:28 09/03/12 10:31:27 krbtgt/CS.STANFORD.EDU@CS.STANFORD.EDU renew until 09/30/12 10:31:27 }}} Once you get the ticket, the krb_renew daemon will renew the ticket for you. You have to do this on every server reboot though... For more info see SshKerberos. ==== Checking for downloaded files ==== There is a script that checks if we have all the spinn3r files for the past 14 days. {{{ /u/snap/checkF3/ checkF3.sh # Checks for the full3 files log/ 2012-09-09-checkF3.log 2012-09-10-checkF3.log ... }}} The script is run from crontab as the snap user: * '''3:15am''': checkF3.sh * The script reports which files it has found and which files had problems. At the moment the e-mail is being sent to rok@cs, akrevl@cs. Report's subject will start with '''[snap-srv]'''. * Crontab log goes to: /u/snap/.crontab/log-checkF3-zarya.txt * === Hulk === There are two versions of the Spinn3r dataset on Hulk. One is Full3 which gets copied from Zarya every night. The other one is Full5 that is converted from the Full3 dataset. The conversion is done every night on Hulk. ==== Dataset directories ==== * full3: /lfs/hulk/0/datasets/spinn3r/spinn3r-full3 * full5: /lfs/hulk/0/datasets/spinn3r/spinn3r-full5 ==== Checking for Full3 files ==== The checkF3 script checks if all the files for the day have been successfully copied from Zarya.Stanford.EDU: {{{ /lfs/local/0/snap/checkF3/ checkF3.sh # Checks for the full3 files log/ 2012-09-09-checkF5.txt 2012-09-10-checkF5.txt ... }}} The script is run from crontab as the snap.crontab user: * '''3:15am''': checkF3.sh * The script reports which files it has found and which files had problems. At the moment the e-mail is being sent to rok@cs, akrevl@cs. Report's subject will start with '''[snap-srv]'''. * Crontab output goes to: /lfs/local/0/snap/.crontab/log-checkF3-hulk.txt ==== Checking for Full5 files ==== The checkF5 script checks if all the Full3 files have been successfully converted to the Full5 format. This is the directory structure used: {{{ /lfs/local/0/snap/checkF5/ checkF5.sh # Checks for the full5 files log/ 2012-09-09-checkF5.txt 2012-09-10-checkF5.txt ... }}} The script is run from crontab as the snap.crontab user: * '''6:15am''': checkF5.sh * The script reports which files it has found and which files had problems. At the moment the e-mail is being sent to rok@cs, akrevl@cs. Report's subject will start with '''[snap-srv]'''. * Crontab output goes to: /lfs/local/0/snap/.crontab/log-checkF5-hulk.txt ==== Converting Full3 to Full5 ==== The conversion scripts are ... {{{ /lfs/local/0/snap/convertF3F5 convert-full3.py # This Python script actually does the conversion convertF3F5byFile.sh # A helper script that converts one Full3 file to Full5 files convertF3F5byTime.sh # A helper that finds the appropriate Full3 file based on the timestamp you provide averageSize.sh # Display the average Full3/Full5 file size by year and last 12 months debug-log/ # Directory with the full debug log of all scripts convertF3F5-2012-09-10.log convertF3F5-2012-09-11.log ... spinn3r-log/ # Directory with the old version logs __spinn3r_... lerr-2011-11-18T19-00-00.txt log-2011-11-18T19-00-00.txt lerr-2011-11-18T20-00-00.txt log-2011-11-18T20-00-00.txt ... prepares the temporary directories checkF5.sh # Checks for the full5 files log/ 2012-09-09-checkF5.txt 2012-09-10-checkF5.txt ... }}} The script is run from crontab as the snap.crontab user: * '''6:15am''': checkF5.sh * The script reports which files it has found and which files had problems. At the moment the e-mail is being sent to rok@cs, akrevl@cs. Report's subject will start with '''[snap-srv]'''. * Crontab output goes to: /lfs/local/0/snap/.crontab/log-checkF5-hulk.txt |
=== More information === [[Spinn3rFormat]] - provides detailed description of version transitions and parsing. |
Spinn3r data set on Hadoop cluster
This page provides all informaton about Spinn3r data set stored on Hadoop cluster.
Data records versions
There are several verison in which the records are stored. It is important to know which version are you processings, since depending on the version you know what fields are available for this record and how the text was preprocessed. For example, in some versions there is no capital letters, no raw html fileds, etc.
From |
To |
Version |
2008-08-01 |
2010-07-13 |
A |
2010-07-14 |
2010-07-26 |
B |
2010-07-27 |
2013-04-30 |
C |
2013-05-01 |
2014-05-30 |
D |
2014-06-01 |
... |
E |
More information
Spinn3rFormat - provides detailed description of version transitions and parsing.