Hadoop Configuration Resources: a local path for core-site.xml and hdfs-site.xml files from our Hadoop cluster. You can use Ambari to easily download these files from your HDP cluster. RecordReader: a JSONTreeReader that will be used to read our source data and convert it to record format in memory. This record reader should be configured with the same schema and schema access strategy as PutParquet. Schema Access Strategy: where to get the schema that will be used for written data. For the sake of simplicity, I'll use the schema text property to define the schema. You can use a schema registry for more governed solution. Other parameters: this processor has several parameters to help tune the Parquet conversion. I'll let the the default values since details of Parquet format are out of the scope of this article. Let's connect the different processors and start data generation/conversion. As discussed before, PutParquet writes parquet data directly into HDFS. Let's check in /tmp/nifi to see the generated data. Note that data coming out from this processor will be the original JSON data. If the result Parquet files are required for the remaining of the flow, NiFi should pull them from HDFS using List/FetchHDFS. Now let's try and read the data in HDFS to check if we have all the information and the right format. There are several ways to do it. What I like to do is to start a Spark shell and try to read the content of my file. Spark has a very good built-in support for Parquet.

Try to avoid using paper towels if you can (although I can tell you that coffee filters are the best way to a streak-free window). Microfiber cloths are great for dusting, and you can use the inexpensive white cloths known as bar mops for just about everything. I use these, as well as a mop with a refillable head that can be machine washed. Spring cleaning is kind of a misnomer because it's just about cleaning. If all you do is shuffle piles of stuff to clean around them and then put them back, sure, your stack of VHS tapes is cleaner, but is your living room ambiance really better off for all of your hard work? Before you can clean, you have to declutter and organize. There are lots of ways to go about it, but the easiest is to set up three different bins (or boxes, whatever works): keep, toss and donate/sell.

Before undertaking any course of treatment, the reader must seek the advice of their physician or other health care provider. Sometimes you have to lift heavy objects. Of course, as the weight of the object increases, so does the risk of injuring your back. However, the actual stress on your back is also related to the position of your body when you lift the object. Understanding how body positioning affects your activities is called body mechanics. You can decrease your chance of a back strain or injury by using good body mechanics. Before you lift any object, you must first make sure that you are capable of lifting it. You can safely lift only a certain amount of weight. Even if you are extremely strong and you can lift 300 pounds by yourself, attempting to lift 310 pounds would be futile and hazardous -- your chance of injury increases dramatically with every pound over your limit. So the first thing to do when lifting an unfamiliar object is to test its weight, or load.

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This may be a JPEG (JPG), GIF, BMP, or PNG up to 8 MB in size. 6. If you want to add multiple images at once, click on "Add another image". A maximum of 5 images may be uploaded at once. 7. Once you’re ready to upload, click the "Upload Image" button. 8. After it’s finished uploading, optionally give the post a title (today’s date or something, just to identify the image upload session), save the draft, and leave Blogger. The post body may be blank and you don’t need to actually publish the post, but there has to at least be a draft saved or else the images will be lost. 9. Go to your Picasa Web Albums account. If all went well, you should have a new album with a little Blogger logo in the bottom-left corner. If the album isn’t there, try waiting a few minutes and refresh. If it still isn’t there, you should recheck the steps above.