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[expand - 1 more] - Re: Question regarding a custom LoadFunc implementation - Pig - [mail # user]
...We had a yml file that mapped physical datasources to the loader that the generic one serves as a facade to. Now we're moving to an HCatalog based solution that handles that as well as the l...
   Author: Bill Graham, 2012-12-11, 23:06
Re: Do we have any plan for "Cost based optimizer"? - Pig - [mail # user]
...Duke has done work around CBOs for Hadoop as part of Starfish and there was some discussion back in the spring about doing the same for Pig, but I'm not aware of any concrete plans or JIRAs ...
   Author: Bill Graham, 2012-12-06, 16:45
Re: Reducer estimation - Pig - [mail # dev]
...We do basically what you're describing. Each of our scripts has a logical name which defines the workflow. For each job in the workflow we persist the job stats, counters and conf in HBase v...
   Author: Bill Graham, 2012-12-04, 07:01
Re: How to perfom a logical diff on two PigStorage files - Pig - [mail # user]
...I've done this in two passes. First I do an intersection test and determine the outer misses by join key on each side, similar to what you've done. I then store the left_only and right_only ...
   Author: Bill Graham, 2012-11-30, 23:14
[PIG-3062] Change HBaseStorage to permit overriding pushProjection - Pig - [issue]
...In some cases it's useful to subclass HBaseStorage and override the logic in pushProjection. To do that we need to create the following protected methods:protected void setColumnInfoList(Lis...
http://issues.apache.org/jira/browse/PIG-3062    Author: Bill Graham, 2012-11-28, 06:23
[PIG-3063] Projection push down should support nested schemas - Pig - [issue]
...LoadPushDown.pushProjection(..) should support nested schemas. Currently the RequiredFieldList passed to this method only include the top-level fields so more granular projection at a lower ...
http://issues.apache.org/jira/browse/PIG-3063    Author: Bill Graham, 2012-11-20, 22:26
[PIG-2934] HBaseStorage filter optimizations - Pig - [issue]
...Our HBase pal/guru Gary Helmling was kind enough to do a code review of HBaseStorage. He suggested some good filter optimizations: when using the "lt*" and "gt*" options, set the start/stop ...
http://issues.apache.org/jira/browse/PIG-2934    Author: Bill Graham, 2012-11-20, 07:47
include HBaseStorage patch in Pig 0.11 - Pig - [mail # dev]
...Hi,  We found a P1 performance blocker in how HBase column filters were implemented in HBaseStorage that effects Pig 0.11: https://issues.apache.org/jira/browse/PIG-2934  We've bee...
   Author: Bill Graham, 2012-11-19, 19:14
Re: PigStorage - Pig - [mail # user]
...+1 as well, but I'd suggest we do the following:  - Keep mProtoTuple private and add protected getters/setters instead with javadocs describing expected usage. - Rename mProtoTuple and ...
   Author: Bill Graham, 2012-11-19, 17:16
Re: HBaseStorage improvements - Pig - [mail # dev]
...This is awesome, thanks for taking charge on this Christoph. HBaseStorage could has grown to the point that it can use some love. A few comments:  - Yes, HBaseStorage has gotten too big...
   Author: Bill Graham, 2012-11-08, 17:43
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