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mapreduce on EC2 - Accumulo - [mail # user]
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...I've now got a map-only job from HDFS into Accumulo running on EC2. Thanks for the help! Aaron...
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Author: Aaron Cordova,
2011-12-23, 00:23
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Re: [jira] [Commented] (ACCUMULO-227) Improve in memory map counts to provide cell level uniqueness for repeated columns in mutation - Accumulo - [mail # dev]
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...It doesn't have to be an iterator that can't be turned off, just one that's enabled by default. On Dec 22, 2011, at 5:32 PM, Keith Turner wrote: ...
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Author: Aaron Cordova,
2011-12-22, 23:12
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Re: [jira] [Commented] (ACCUMULO-227) Improve in memory map counts to provide cell level uniqueness for repeated columns in mutation - Accumulo - [mail # dev]
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...I acknowledge everything you say as true - but disagree that the greatest level of flexibility results in the best experience for the user. BigTable is defined as a map - I think most users ...
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Author: Aaron Cordova,
2011-12-22, 22:56
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Re: mapreduce example - Accumulo - [mail # user]
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...yechh I was hoping this wasn't the case. but ok. Thanks On Dec 22, 2011, at 5:23 PM, Adam Fuchs wrote: ...
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Author: Aaron Cordova,
2011-12-22, 22:28
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Re: [jira] [Commented] (ACCUMULO-227) Improve in memory map counts to provide cell level uniqueness for repeated columns in mutation - Accumulo - [mail # dev]
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... That's fine too, if the value of dropping deterministically outweighs the cost of sorting in these cases - it should be so rare that it doesn't really matter much how one does it....
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Author: Aaron Cordova,
2011-12-22, 22:26
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Re: [jira] [Commented] (ACCUMULO-227) Improve in memory map counts to provide cell level uniqueness for repeated columns in mutation - Accumulo - [mail # dev]
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...If you want to make it possible for the user to turn this functionality off - (let's call it the "GO MULTIMAP!!" option) that's fine with me, as long as by default it's turned on. On ...
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Author: Aaron Cordova,
2011-12-22, 22:24
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Re: [jira] [Commented] (ACCUMULO-227) Improve in memory map counts to provide cell level uniqueness for repeated columns in mutation - Accumulo - [mail # dev]
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...And just to be clear, since there are several definitions of key flying around - in the following case: row1,colfam1,colqual1,4 -> valueA row1,colfam1,colqual1,5 -> valueB ...
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Author: Aaron Cordova,
2011-12-22, 22:23
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mapreduce example - Accumulo - [mail # user]
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...It looks like the mapreduce example uses the tool.sh script to grab all the classes needed to kick off a mapreduce over Accumulo, but is it also necessary to copy some Accumulo jars to taskt...
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Author: Aaron Cordova,
2011-12-22, 22:20
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Re: [jira] [Commented] (ACCUMULO-227) Improve in memory map counts to provide cell level uniqueness for repeated columns in mutation - Accumulo - [mail # dev]
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...The reason for 'all but one' is to adhere to the concept of a map, and by 'arbitrarily' I mean, whatever way incurs the least processing cost. On Dec 22, 2011, at 5:09 PM, Keith Turner...
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Author: Aaron Cordova,
2011-12-22, 22:17
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Re: [jira] [Commented] (ACCUMULO-227) Improve in memory map counts to provide cell level uniqueness for repeated columns in mutation - Accumulo - [mail # dev]
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...I propose Accumulo drops all but one arbitrarily On Dec 22, 2011, at 5:09 PM, Keith Turner wrote: ...
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Author: Aaron Cordova,
2011-12-22, 22:15
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