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Ship it! Ship It! - Amareshwari Sriramadasu On Dec. 29, 2014, 1:48 p.m., Rajat Khandelwal wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/29455/ > ----------------------------------------------------------- > > (Updated Dec. 29, 2014, 1:48 p.m.) > > > Review request for lens. > > > Bugs: LENS-162 > https://issues.apache.org/jira/browse/LENS-162 > > > Repository: lens > > > Description > ------- > > config and config generator changes > > > Diffs > ----- > > lens-api/src/test/java/org/apache/lens/doc/TestGenerateConfigDoc.java > d331c73ce88a08a5d7ae54874069515e80e7659e > lens-driver-hive/src/main/resources/hivedriver-default.xml > 33ae8603b73b9f745f562fb8efc98669618fe03a > src/site/apt/admin/config.apt e982b07fd17f0b1be28ed183ec4c891a97a19ae9 > src/site/apt/admin/hivedriver-config.apt > 576025e60a7ecff02e0682f308584a97e22e5f2b > src/site/apt/admin/jdbcdriver-config.apt > 426d6eb8eeebc3320ecedf3f6597e928f6291733 > src/site/apt/admin/session-config.apt > af4cc81793babf2c6d01c20071c7839e23680bb3 > src/site/apt/user/olap-query-conf.apt > f10313fd78218d22a503ff3787c2741c58aa2fd3 > > Diff: https://reviews.apache.org/r/29455/diff/ > > > Testing > ------- > > This is how the priority section looks: > ``` > Priority Ranges. The numbers are the costs of the query. > The cost is calculated based on partition weights and fact weights. The > interpretation of the default config is: > > cost <= 7 : Priority = VERY_HIGH > 7 < cost <= 30 : Priority = HIGH > 30 < cost <= 90 : Priority = NORMAL > 90 < cost : Priority = LOW > > Some perspective wrt default weights and default ranges(1 for hourly, 0.75 > for daily, 0.5 for monthly): > For exclusively hourly data this translates to > VERY_HIGH,7days,HIGH,30days,NORMAL,90days,LOW. > FOR exclusively daily data this translates to > VERY_HIGH,9days,HIGH,40days,NORMAL,120days,LOW. > for exclusively monthly data this translates to > VERY_HIGH,never,HIGH,1month,NORMAL,6months,LOW. > > One use case in range tuning can be that you never want queries to run with > VERY_HIGH, assuming no other changes, you'll modify the value of this param > in hivedriver-site.xml to be HIGH,30.0,NORMAL,90,LOW > via the configs, you can tune both the ranges and partition weights. this > would give the end user more control. > ``` > > > Thanks, > > Rajat Khandelwal > >
