AWS cron expression to run a job every 2 days once-CodePudding

I have a requirement to schedule a job in AWS CloudWatch events to be run once in every two days. I am using the below expression but getting a error Parameter ScheduleExpression is not valid

cron(0 0 */2 * ? *)

The below is the java code,

String cronExpression = "cron(0 0 */2 * ? *)"
    PutRuleRequest request = new PutRuleRequest();
        request
            .withName(eventName)
            .withRoleArn("arn:aws:iam::****")
            .withScheduleExpression(cronExpression)
            .withState(RuleState.ENABLED);
        PutRuleResult result = cloudwatchConfig.cloudwatch().putRule(request);

CodePudding user response：

cron(0 0 1/2 * ? *)

You can verify here.

CodePudding user response：

If you put your syntax into cloudwatch, it too will report the same error you are seeing in the terraform,but fix it simple

cron(0 0 1-31/2 * ? *)

The explanation for each field is here: https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html

1-31 covers all the possible number of days in a month