I am building a API Java code that is downloading into a CSV file a list of transactions, disputes and payments made through Paypal for this company I work for. One of the columns from the CSV file is a…
I have a big issue when using multiple threads with spring-redis-data and it's so easy to reproduce that I think I've been missing something trivial. Straight to the point If I query a CrudRepository while doing save operations, it sometimes…
In my spring-boot project there are two microservices, one config-server, and one naming server. It also has two modules which I am adding as a dependency in the microservices. Below is the pom of the commons-new module which should be…
I am using Redis with Spring boot. I am using String as Key and the value against it as a List of complex POJO. Below is my config: @Configuration @EnableCaching @Slf4j public class RedisCacheConfig extends CachingConfigurerSupport { private static final…
I've just been starting out with Vertx. I wonder if there's a way to store/cache a response data for a period of time? For example, the first time a user calls my API, it will query the database on the…
I have an error when I create a Hikari connection, in a past have using mysql-connector but finally I decided use hikaricp. This is the error: [04:17:49] [Server thread/INFO]: HikariPool-1 - Starting... [04:17:49] [Server thread/INFO]: HikariPool-1 - Driver does not…
I have an application that has the following error message: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. This message occurs after I attempt to run any script for…
In a servlet, should Lettuce Redis connections be created in init() and shutdown in destroy() or should a connection be created for every request (in doPost or doGet?) I am using sync RedisCommands (connection.sync()) Lettuce states: Lettuce is thread-safe by…
If I initialize String array directly like this String[] Distro = Distros.split(","); then it'll create an object because variable Distro is holding the array. But If I do it this way then it'll also create an object? String Distros =…
Tomcat 9 is sandboxed. I want to read data of a log file. The file is in "/opt/zigbee2mqtt/data/." I read this thread already and tried it. How to allow Tomcat war app to write in folder I edited the file,…