[jira] [Commented] (NIFI-7516) Predictions model throws intermittent SingularMatrixExceptions
[ https://issues.apache.org/jira/browse/NIFI-7516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17326341#comment-17326341 ] Denes Arvay commented on NIFI-7516: --- [~mattyb149], I bumped into this issue recently and it seems it's been merged but the ticket hasn't been closed. Could you please mark this as resolved? Thanks. > Predictions model throws intermittent SingularMatrixExceptions > -- > > Key: NIFI-7516 > URL: https://issues.apache.org/jira/browse/NIFI-7516 > Project: Apache NiFi > Issue Type: Bug > Components: Extensions >Reporter: Matt Burgess >Assignee: Matt Burgess >Priority: Major > Time Spent: 0.5h > Remaining Estimate: 0h > > Under some circumstances, the Connection Status Analytics model (specifically > the Ordinary Least Squares model) throws a SingularMatrix exception: > org.apache.commons.math3.linear.SingularMatrixException: matrix is singular > This can happen (usually intermittently) when the data points used to update > the model form a matrix that has no inverse (i.e. singular). -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (NIFI-7516) Predictions model throws intermittent SingularMatrixExceptions
[ https://issues.apache.org/jira/browse/NIFI-7516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17142030#comment-17142030 ] ASF subversion and git services commented on NIFI-7516: --- Commit 32fa9ae51bfa486f463862a97817e2cf1702532d in nifi's branch refs/heads/master from Matt Burgess [ https://gitbox.apache.org/repos/asf?p=nifi.git;h=32fa9ae ] NIFI-7516: Catch and log SingularMatrixExceptions in OrdinaryLeastSquares model (#4323) > Predictions model throws intermittent SingularMatrixExceptions > -- > > Key: NIFI-7516 > URL: https://issues.apache.org/jira/browse/NIFI-7516 > Project: Apache NiFi > Issue Type: Bug > Components: Extensions >Reporter: Matt Burgess >Assignee: Matt Burgess >Priority: Major > Time Spent: 0.5h > Remaining Estimate: 0h > > Under some circumstances, the Connection Status Analytics model (specifically > the Ordinary Least Squares model) throws a SingularMatrix exception: > org.apache.commons.math3.linear.SingularMatrixException: matrix is singular > This can happen (usually intermittently) when the data points used to update > the model form a matrix that has no inverse (i.e. singular). -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (NIFI-7516) Predictions model throws intermittent SingularMatrixExceptions
[ https://issues.apache.org/jira/browse/NIFI-7516?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17129637#comment-17129637 ] Matt Burgess commented on NIFI-7516: It may be more trouble than it is worth to detect a singular matrix ahead of trying to make the predictions, I recommend just logging the issue at the debug level > Predictions model throws intermittent SingularMatrixExceptions > -- > > Key: NIFI-7516 > URL: https://issues.apache.org/jira/browse/NIFI-7516 > Project: Apache NiFi > Issue Type: Bug > Components: Extensions >Reporter: Matt Burgess >Priority: Major > > Under some circumstances, the Connection Status Analytics model (specifically > the Ordinary Least Squares model) throws a SingularMatrix exception: > org.apache.commons.math3.linear.SingularMatrixException: matrix is singular > This can happen (usually intermittently) when the data points used to update > the model form a matrix that has no inverse (i.e. singular). -- This message was sent by Atlassian Jira (v8.3.4#803005)
