By Aaron Cordova, Billie Rinaldi, Michael Wall
Wake up to hurry on Apache Accumulo, the versatile, high-performance key/value shop created via the nationwide defense organization (NSA) and according to Google’s BigTable information garage procedure. Written via former NSA staff participants, this complete instructional and reference covers Accumulo structure, program improvement, desk layout, and cell-level security.
With transparent info on method management, functionality tuning, and top practices, this booklet is perfect for builders trying to write Accumulo purposes, directors charged with fitting and keeping Accumulo, and different pros drawn to what Accumulo has to provide. you will discover every thing you can use the program fully.
Get a high-level advent to Accumulo’s structure and knowledge model
Take a speedy travel via unmarried- and multiple-node installations, facts ingest, and query
Learn easy methods to write Accumulo functions for a number of use instances, in response to examples
Dive into Accumulo internals, together with info no longer on hand within the documentation
Get distinctive details for fitting, administering, tuning, and measuring performance
Learn top practices in line with winning implementations within the field
Find solutions to universal questions that each new Accumulo consumer asks
Read or Download Accumulo: Application Development, Table Design, and Best Practices PDF
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Additional resources for Accumulo: Application Development, Table Design, and Best Practices
Sample text
Better yet, read Chapter 2, where you’ll learn about the many powers of Find mode. Here are some rules of thumb for creating find requests: Sorting Records Alphabetical order is probably the most common way to sort things, but FileMaker is by no means limited to the good ol’ ABCs. You can sort the records in any order Chapter 1: Working with Your Database 25 SORTING RECORDS you want, as often as you want. You can even do a sort within a sort, as you’ll see later in this section. Understanding Sorting Don’t confuse sorting with finding.
Multifield sorts can get as complicated as you like. Sometimes, they’re a little tricky to get right, particularly if you’re sorting by more than two or three fields (Figure 1-17 shows a report that uses multiple sorts). 28 FILEMAKER PRO 13: THE MISSING MANUAL NOTE Sorting records when you’re creating a report can change the way FileMaker tallies data. See page 257 for info on creating layout parts that use sorted data to make sophisticated reports. SAME DATABASE, DIFFERENT VIEWS If you do a Multifield sort and then discover you didn’t get quite what you expected (because you had the fields in the wrong order), just choose Records→Sort Records again, move the fields in the Sort Order list to the right places, and then click Sort.
You’ll see the dialog box that lets you make the Toolbar your own (Figure 1-7, bottom). You can add buttons for other commonly used commands, or delete buttons that you’ll never use. The top section of the dialog box shows all the buttons you can add to the toolbar. Don’t worry about messing up either. To undo your customization, in Windows, choose Toolbars, then highlight Status Toolbar, and then click Reset. On a Mac, the middle section gives you a pristine copy of the default toolbar that you can drag into place to put things back to normal.
