In this example, we use the MongoDB/embedded_movies dataset. We convert the dataset into a pandas DataFrame, remove any entries missing the plot, and drop the existing embeddings so we can create new ones. 1 from datasets import load_dataset 2 import pandas as pd 3 4 # Load Dataset ...
In MongoDB 3.2, the WiredTiger internal cache, by default, will use the larger of either:60% of RAM minus 1 GB, or 1 GB. => 60% * 3 - 1 = 1.8 -1 =0.8 GBon our current (3gb-ram) instance It's possible to manually set this using thestorage.wiredTiger.engineConfig.cacheSizeGB...
Data retrieval, search, DSS, business intelligence applications which need to analyze a lot of rows run aggregates, etc., is when this problem is the most dramatic. Some joins are also better than others. For example, if you have a star join with dimension tables being small, it would ...
A stage is simply part of the execution of a query statement. For instance, if Presto has to aggregate one billion rows stored in Amazon S3, it goes about this task by creating a root stage and several other stages. Additionally, the root stage aggregates the data returned from the other...
Parquet, JSON, and more. In addition to the Hive connector, you’ll find connectors for Cassandra, Elasticsearch, Kafka, MySQL, MongoDB, PostgreSQL, and many others. Connectors are being contributed to Presto all the time, giving Presto the potential to be able to access data anywhere it liv...
Prometheus Query Language (known asPromQL) is a powerful and flexible query language that lets you easily select and aggregate time-series data in real time. AlertManager handles all alerts sent by Prometheus. All alert rules are set in Prometheus server, while AlertManager takes care of deduplica...
For the pagefile, my recommendation has long been that your pagefile’s default or initial size should be large enough that the performance counter Paging file | %usage (peak) is kept below 25%. My rationale for this is that the memory manager tries to aggregate pagefile writes into large...
The reduce operator aggregates the n elements of a sequence to a single result value. Unlike the map and filter, reduce applies a binary function. With this function, the reduce operator initially combines the first element of the sequence with an initial value. The result is then combined wi...