Other properties you can configure, regarding memory are the query. In this distribution we used their default values. But if the cluster needs to handle bigger queries, you should make query. If you are suffering from network or IO bandwidth, it is recommended that you compress your files:.
Also, avoid small files, any file less than 8 MB is considered small. Hundred of MB is the recommended size. Do not use tiny row groups, default is MB, but some tools generate Parquet files with typical size of 4k, causing bad IO patterns in Presto.
The available properties are described in the Appendix: Hive Table Properties. Or execute the metadata discovery tool explained in the next section. The metadata discovery tool explores the distributed storage, starting from a folder given by the user, and from every Paquet dataset it finds, in a folder or subfolder, it creates the corresponding table in Presto.
Then, it calls a Denodo stored procedure that introspects Presto and creates the Denodo base views for all the new tables created in Presto. The tool is distributed both as a script and as a Denodo stored procedure. A configuration file is required as input:. Requisites for this code to be able to connect to Presto:. Prerequisites in Denodo before Denodo 8. Import Presto driver with name: prestosql-3xx. This certificate accepts localhost and presto-denodo as Presto host names:.
But you are encouraged to use a certificate issued by a CA in production. This can affect existing base views at Denodo that had modifications made by the user, like renamed fields, field types modifications, cache configuration Our recommendation is to always leave Denodo base views as is and make changes only in views that derive from these base views. Output of the metadata discovery process. Exception in the metadata discovery process.
Class name : com. The input parameters required by the stored procedure are:. The following input parameters are optional :. This command collects statistical information about the data that the Presto optimizer uses to plan the query, based on cost strategies. Once again, you can use your favourite SQL client to analyze the tables you want when the cluster is running.
Tables can have partitions, as they can improve query performance, especially when the columns being queried for are the partitioned ones. This means that, for each column value of the partitioned column, there will be a separate folder under the location of the dataset. However, if we query a partition table after creating it, we will find that it returns zero results. The Hive Metastore needs to discover which partitions exist by querying the underlying storage system. The Presto procedure system.
Due to security reasons, this procedure is enabled only when hive. An adapter must be ordered separately to connect to the target featuring pin 2. High-Speed Aurora cables. Refer to the above table to see which High-Speed Aurora cable is required for the specific microcontroller architecture and which Aurora DTM module is required for the specific debug interface: The High-Speed Aurora cable comes preassembled with the iC Ordering code IC Contents Contents Index Search.
Scroll Prev Top Next More. Ordering code. Reference Voltage. Not Connected. AGBT Clock. Toggle right on About and down to Factory Reset. Note: Turn your camera off and on again to complete the Factory Reset. The default setting is Never. Toggle down to the option that best suits your camera use and press SET. Turn the Settings Dial to another Mode to exit the menu. It is calibrated at the factory, but if you feel that your compass is directionally off you can recalibrate it manually.
Toggle down to Calibrate Compass and right to access the animated instructions. Toggle left twice to exit the menu. Toggle left twice to exit the sub-menus. Format You can change the format of the date and time.
Toggle down to Date and Time and toggle right to Format. Select the option you want and press SET. Toggle down to Time Format and toggle right. Toggle down to SD Card and right twice to Format. Toggle to Yes and press SET. Chimes The camera plays chimes for different functions and when you turn the camera on and off. Toggle down to Chimes and right to turn Chimes Off or On.
Toggle down to Audio and right to the volume options. Select the volume option you prefer and press SET. The GPS displays your exact longitude and latitude.
Toggle down to On and press SET. Turn the camera to either the Photo, Video, or Loop Mode and go outside to receive a signal. Note: GPS only works outside and requires minutes for the camera to receive an initial location.
Toggle down to GPS and right to the menu. Toggle down to Format and right to the Format options. Toggle left to exit the GPS menu. The GPS coordinates will appear in the upper right side of the Viewfinder.
Note: GPS consumes power and should be turned off, when not in use, to extend battery life. Press SET to select. The app is available at the App Store and Google Play.
Note: Set your mobile device to Airplane Mode before connecting to Aurora. Reduce the brightness of the Viewfinder. Enable the Auto Power Off feature. Storage and Handling Avoid exposing your camera to very cold or very hot temperatures. These may shorten battery life. Keep the battery away from heat and fire. Do not dry the camera or battery with an external heat source such as a microwave oven or hair dryer. Do not store your battery with metal objects, such as coins, keys or necklaces.
If the battery terminals come in contact with metal objects, this may cause a fire. Do not make any alterations to the camera. Do not use unauthorized chargers. Doing so may compromise safety, regulatory compliance, performance, and void the warranty.
Do not drop, disassemble, open, crush, bend, deform, puncture, shred, microwave, incinerate or paint the camera or battery. Do not insert foreign objects into the battery opening on the camera. Do not use the camera or the battery if it has been damaged — for example, if cracked, punctured or harmed by water. Stop using the battery if there are noticeable abnormalities such as abnormal smell, heat, deformities or discoloration.
Disassembling or puncturing the battery can cause an explosion or fire. Disposal Many localities have laws in place requiring battery recycling. Only use manufacturer-recommended replacement batteries for your camera. Keep the battery away from infants and children under 5 years old. Make sure to supervise children and instruct them on the proper use and care of the battery.
Aurora is water resistant for 30 minutes at 3 feet. If your Aurora is wet or has recently been in water, be sure to dry it off thoroughly before removing the Viewfinder to prevent any water from entering the body of the camera. A corresponding red led will also flash on the side of the camera. Camera will work when temperature reaches operating range.
Low Battery The battery is not sufficiently charged to run the camera. Charge the battery. Install an SD Card. Format SD Card. Install 32 GB SD card. Please set date and time Out-of-box or after firmware update. Remove message by pressing the SET button. Set date and time. Swing range error Panorama mode is on and swing direction is wrong or movement is too fast.
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