[jira] [Created] (AMQ-7002) Activemq SchedulerBroker doSchedule can schedule duplicate jobIds leading to runtime exception

["Jamie goodyear (JIRA)" <ji...@apache.org>]

Jamie goodyear created AMQ-7002:
-----------------------------------

             Summary: Activemq SchedulerBroker doSchedule can schedule duplicate jobIds leading to runtime exception 
                 Key: AMQ-7002
                 URL: https://issues.apache.org/jira/browse/AMQ-7002
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker, Job Scheduler
    Affects Versions: 5.15.4
         Environment: Java 8
AMQ 5.15.4
            Reporter: Jamie goodyear
             Fix For: 5.x


Under load we've observed that SchedulerBroker will attempt to schedule jobs using the same JobId.

When JobScheduleView attempts to process these jobs we'll encounter an exception during the below put call:

{color:#bbb529}@Override
{color}{color:#cc7832}public {color}TabularData {color:#ffc66d}getAllJobs{color}() {color:#cc7832}throws {color}Exception {
 OpenTypeFactory factory = OpenTypeSupport.getFactory(Job.{color:#cc7832}class{color}){color:#cc7832};
{color} CompositeType ct = factory.getCompositeType(){color:#cc7832};
{color} TabularType tt = {color:#cc7832}new {color}TabularType({color:#6a8759}"Scheduled Jobs"{color}{color:#cc7832}, {color}{color:#6a8759}"Scheduled Jobs"{color}{color:#cc7832}, {color}ct{color:#cc7832}, new {color}String[] { {color:#6a8759}"jobId" {color}}){color:#cc7832};
{color} TabularDataSupport rc = {color:#cc7832}new {color}TabularDataSupport(tt){color:#cc7832};
{color} List<Job> jobs = {color:#cc7832}this{color}.{color:#9876aa}jobScheduler{color}.getAllJobs(){color:#cc7832};
{color}{color:#cc7832} for {color}(Job job : jobs) {
 rc.put({color:#cc7832}new {color}CompositeDataSupport(ct{color:#cc7832}, {color}factory.getFields(job))){color:#cc7832};
{color} }
 {color:#cc7832}return {color}rc{color:#cc7832};
{color}}

This can be triggered by clicking on the Schduled tab in the webconsole.

The error only occurs due to duplicate JobIds. 

Debugging this error, we can see that two jobs with different payloads have the same JobId - this should not be allowed to occur. 

We need to ensure that JobIds are unique.



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