HikariPool-1 - Подключение недоступно (Камунда)

После обновления camunda 7.8 до 7.9 я получаю HikariPool-1 - соединение недоступно, может ли кто-нибудь помочь мне решить эту проблему?

Caused by: java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms.
    at com.zaxxer.hikari.pool.HikariPool.createTimeoutException(HikariPool.java:667)
    at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:183)
    at com.zaxxer.hikari.pool.HikariPool.getConnection(HikariPool.java:148)
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:128)
    at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:262)

--

org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after 30000ms.
    at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:305)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.handleExistingTransaction(AbstractPlatformTransactionManager.java:430)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:354)
    at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:137)
    at org.camunda.bpm.engine.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40)
    at org.camunda.bpm.engine.impl.interceptor.ProcessApplicationContextInterceptor.execute(ProcessApplicationContextInterceptor.java:66)
    at org.camunda.bpm.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:30)
    at org.camunda.bpm.engine.impl.db.DbIdGenerator.getNewBlock(DbIdGenerator.java:46)
    at org.camunda.bpm.engine.impl.db.DbIdGenerator.getNextId(DbIdGenerator.java:38)
    at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.ensureHasId(DbEntityManager.java:663)
    at org.camunda.bpm.engine.impl.db.entitymanager.DbEntityManager.insert(DbEntityManager.java:546)

camunda hikaricp camunda-modeler
person Sthita    schedule 28.06.2018    source источник

Ответы (1)


arrow_upward
2
arrow_downward

Я попытался увеличить размер пула и похоже, что это исключение исчезло.

spring:
    datasource:
        url: 'jdbc:mysql://localhost/db?useSSL=false'
        username: root
        password: pass
        driver: com.mysql.jdbc.Driver
        hikari:
            minIdle: 10
            idle-timeout: 10000
            maximumPoolSize: 30

Это следующие изменения конфигурации, которые мы можем сделать на hikari, пожалуйста, добавьте / обновите в соответствии с вашими потребностями.

autoCommit
connectionTimeout
idleTimeout
maxLifetime
connectionTestQuery
connectionInitSql
validationTimeout
maximumPoolSize
poolName
allowPoolSuspension
readOnly
transactionIsolation
leakDetectionThreshold
person Sthita    schedule 28.06.2018