halfak

(3.4)[halfak@graphite: ~]
$ R

R version 3.0.1 (2013-05-16) -- "Good Sport"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

halfak

==> default: Checking for guest additions in VM...
    default: The guest additions on this VM do not match the installed version of
    default: VirtualBox! In most cases this is fine, but in rare cases it can
    default: prevent things such as shared folders from working properly. If you see
    default: shared folder errors, please make sure the guest additions within the
    default: virtual machine match the version of VirtualBox you have installed on
    default: your host and reload your VM.
    default: 
    default: Guest Additions Version: 4.3.10
    default: VirtualBox Version: 4.2

halfak

==> default: Checking for guest additions in VM...
    default: The guest additions on this VM do not match the installed version of
    default: VirtualBox! In most cases this is fine, but in rare cases it can
    default: prevent things such as shared folders from working properly. If you see
    default: shared folder errors, please make sure the guest additions within the
    default: virtual machine match the version of VirtualBox you have installed on
    default: your host and reload your VM.
    default: 
    default: Guest Additions Version: 4.3.10
    default: VirtualBox Version: 4.2

halfak

from:	 Marc-André Pelletier via RT <[email protected]>
reply-to:	 [email protected]
to:	 [email protected]
cc:	 [email protected]
date:	 Wed, Sep 3, 2014 at 3:59 PM
subject:	 [wikimedia #8278] libbz2-dev and virtualenv on stat servers
mailed-by:	 rt.wikimedia.org

halfak

function consume_chunk(vector, split, start=1){
    items = c()
    location = start
    for(item in vector[start:length(vector)]){
        items = c(items, item)
        
        location += 1
        
        if(split(item)){
            break

halfak

first = function(vector, condition, start=1){
    
    for(i in start:length(vector)){
        if(condition(vector[i])){
            return(i)
        }
        
    }
    return(length(vector))
}

halfak

mysql:[email protected] [staging]> CREATE UNIQUE INDEX wiki_rev_id ON events_sandbox_edit (wiki, rev_id);
ERROR 1062 (23000): Duplicate entry 'enwiki-625851283' for key 'wiki_rev_id'

mysql:[email protected] [staging]> select * from events_sandbox_edit where wiki = "enwiki" and rev_id = 625851283;
+--------+-----------+----------------+----------+---------------+----------------+------------------+
| wiki   | rev_id    | rev_timestamp  | rev_user | rev_user_text | page_namespace | page_title       |
+--------+-----------+----------------+----------+---------------+----------------+------------------+
| enwiki | 625851283 | 20140916191849 | 22216559 | Olive875      |              2 | Olive875/sandbox |
+--------+-----------+----------------+----------+---------------+----------------+------------------+
1 row in set (1.36 sec)

halfak

$ python demonstrate_extractor.py 
Extracting features for http://en.wikipedia.org/wiki/?oldid=626489778&diff=prev
<added_badwords_ratio>: 211.95999999999998
<added_misspellings_ratio>: 1.4638121546961327
<badwords_added>: 3
<bytes_changed>: 133
<chars_added>: 145
<day_of_week_in_utc>: 6
<hour_of_day_in_utc>: 15
<is_custom_comment>: True

halfak

Host bastion.wmf
        Hostname bast1001.wikimedia.org

Host stat3.wmf
        HostName stat1003.wikimedia.org
        ProxyCommand ssh -a -W %h:%p bastion.wmf


-----

halfak

mysql:[email protected] [enwiki]> explain SELECT
    ->     DATABASE() AS wiki,
    ->     user_id,
    ->     revision.rev_id,
    ->     page_namespace,
    ->     CAST(revision.rev_len AS INT) -
    ->         CAST(IFNULL(parent.rev_len, 0) AS INT) AS bytes_changed,
    ->     IFNULL(parent.rev_len, 0) AS previous_bytes
    -> FROM staging.tr_experimental_user
    -> INNER JOIN revision FORCE INDEX (user_timestamp) ON