Search: "emap reduce"
How to reduce delay? - ApsaraVideo Live Documentation
try to reduce delay by setting the TS segment duration. This can effectively reduce delay to some extent, but due to the nature of the protocol, it cannot reduce the delay as much as RTMP or FLV can do. Set GOP frameGOP frame is the video key frame, which ...
Configure "combined alarm" and "alarm retries" to reduce cloud monitoring Documentation
set combined alarm and the alarming retries to reduce the probability of such issues. The configuration is outlined as follows exceptions are detected at all the monitoring sites multiple times will the alarm be sent, which helps to reduce the false alarm rate. ...
MapReduce - MaxCompute Documentation
Reduce. Map must be executed first, and then Reduce. The processing logic of Map and Reduce isdefined by the user, but must comply Worker performs computing after reading the data and output the result to Reduce. Because Map Worker outputs the data, it must ...
Java SDK - MaxCompute Documentation
the record object of the input table, processes the object into key value and outputs the value to the Reduce stage,or outputs result record to the result table without passing through the Reduce stage. Jobs that do not pass through the Reduce stage, but ...
Adaptive execution of Spark SQL - E-MapReduce Documentation
set the number of reduce tasks automatically, solve data skew, and dynamically optimize execution plans. Solved partitions Currently, the number of tasks in the reduce stage in Spark SQL depends on the value of the spark.sql.shuffle.partition ...
MR limits - MaxCompute Documentation
single map instance or reduce instance, including the framework memory (2,048 MB by default) and heap memory of the Java virtual number ranges from 1 to 100,000. reduce instance [0,2000] Number limit ...
Lambda functions - Log Service Documentation
(ARRAY['k1', 'k2', 'k3'], ARRAY[20, 3, 15]), (k, v) - v 10); -- reduce(arrayT, initialState S, inputFunctionS, T, S, outputFunctionS, R) → R The reduce() function traverses each element in the array in turn ...
Extended MapReduce - MaxCompute Documentation
Reduce operation can be executed after the Reduce operation and inserting a Mapoperation is not necessary. In this way, MaxCompute provides an extensional MapReduce model, that is, numerous Reduce operations can follow a Map operation, such as MapReduce ...
Alibaba Cloud best practices for relieving DDoS attacks - DDoS Protection Documentation
relieve DDoS attacks through the following methods: Reduce surface exposure and isolate resources and irrelevant services to reduce from other manufacturers. 1. Reduce surface exposure1.1 Configure a security groupAvoid exposing ports which are not required for ...
Development and debugging - MaxCompute Documentation
the setNumWorkers() method to increase the number of Workers. You can use the setSplitSize() method to reduce the split of iterations. If applications do not have high requirements on result precision, you can reduce the number of iterations to ...