Bug 1028173

+++ This bug was initially created as a clone of Bug #1017474 +++

See Bug 993513

This is RHQ 4.9, however.


01:05:17,366 ERROR [org.jboss.as.ejb3.invocation] (RHQScheduler_Worker-4) JBAS014134: EJB Invocation failed on component MeasurementBaselineManagerBean for method public abstract void org.rhq.enterprise.server.measurement.MeasurementBaselineManagerLocal.calculateAutoBaselines(): javax.ejb.EJBException: java.lang.RuntimeException: Auto-calculation failure
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInNoTx(CMTTxInterceptor.java:191) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:237) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.never(CMTTxInterceptor.java:285) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]

...
	at org.rhq.enterprise.server.measurement.MeasurementBaselineManagerLocal$$$view12.saveNewBaselines(Unknown Source) [rhq-server.jar:4.9.0]
	at org.rhq.enterprise.server.measurement.MeasurementBaselineManagerBean.calculateBaselines(MeasurementBaselineManagerBean.java:280) [rhq-server.jar:4.9.0]

...

Caused by: java.sql.BatchUpdateException: Internal Error: Overflow Exception trying to bind NaN
	at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:10296) [ojdbc6.jar:11.2.0.2.0]
	at oracle.jdbc.driver.OracleStatementWrapper.executeBatch(OracleStatementWrapper.java:216) [ojdbc6.jar:11.2.0.2.0]
....

--- Additional comment from Elias Ross on 2013-11-07 10:00:33 EST ---

diff --git a/modules/enterprise/server/server-metrics/src/main/java/org/rhq/server/metrics/MetricsBaselineCalculator.java b/modules/enterprise/server/server-metrics/src/main/java
index ef7d092..f132135 100644
--- a/modules/enterprise/server/server-metrics/src/main/java/org/rhq/server/metrics/MetricsBaselineCalculator.java
+++ b/modules/enterprise/server/server-metrics/src/main/java/org/rhq/server/metrics/MetricsBaselineCalculator.java
@@ -98,6 +98,9 @@ private MeasurementBaseline calculateBaseline(Integer schedule, long startTime,
                     }
                 }
             }
+            if (Double.isNaN(max) || Double.isNaN(min)) {
+                return null; // do not record this
+            }
 
             MeasurementBaseline baseline = new MeasurementBaseline();
             baseline.setMax(max);

^^ Not tested but maybe will work

--- Additional comment from Stefan Negrea on 2013-11-07 10:33:32 EST ---

Elias,

Your proposed fix would address something that is not possible. All aggregates have min, max and average; so adding that statement there only prevents cases where data was deleted maliciously from the storage nodes by users and not RHQ.


Do you have any other logs or data on how this is happening? Sample data or reproductions steps would greatly helps us fix the root cause of the issue.

Also, is this an upgrade from a prior version of RHQ or it is a fresh install?

--- Additional comment from Elias Ross on 2013-11-07 11:05:47 EST ---

Not possible?

The original bug was after an upgrade of a test cluster, so maybe some old data is a problem. I've recently seen the problem after my main server upgrade today, which was nearly a week ago.

I've had problems with my Cassandra cluster, where data has been coming up empty. Meaning, you query it and the expected data is not there. Could this cause an issue? I've seen 0 avg, NaN on min/max in the UI, for the metrics table. So there are NaNs someplace.

Even if my fix fixes something that is not possible, it fixes something I've seen on two servers. I've had to disable baseline calculation.