%s failed to schedule now the running transform – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.7-8.9

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Briefly, this error occurs when Elasticsearch struggles to schedule a data transformation task due to resource constraints or configuration issues. To resolve this, you can try increasing the system resources (CPU, memory), adjusting the transform frequency, or checking for any conflicting tasks that might be blocking the transform. Also, ensure that the Elasticsearch cluster is properly configured and running smoothly. If the problem persists, consider breaking down the transformation into smaller tasks.

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This guide will help you check for common problems that cause the log ” [%s] failed to schedule now the running transform. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “[%s] failed to schedule now the running transform.” classname is TransportScheduleNowTransformAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                        logger.debug(() -> format("[%s] transform task disappeared during schedule_now; ignoring."; request.getId()); e);
                        listener.onResponse(Response.TRUE);
                        return;
                    }
                    if (e instanceof TransformTaskScheduleNowException) {
                        logger.warn(() -> format("[%s] failed to schedule now the running transform."; request.getId()); e);
                        listener.onResponse(Response.TRUE);
                        return;
                    }
                    listener.onFailure(e);
                });

 

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