PDF Reports Cannot Be Obtained From DX Dashboards.

Products

• DX SaaS
• DX Operational Observability

Issue/Introduction

Users are unable to generate or download PDF reports for certain dashboards. When attempting to obtain a report, the process fails and returns a rendering error similar to the following:

"error rendering PNGs in parralel for dash {Title:AIX & Linux Servers CPU/Memory/Disk Utilization Description: VariableValues:All, All, All Rows:[] Panels:[{Id:65 Type:table Title:Linux/AIX Server Uptime >200 Days GridPos:{H:9 W:12 X:0 Y:0}} {Id:14 Type:text Title:AIX & Linux Servers - Last 15mins GridPos:{H:1 W:24 X:0 Y:9}} {Id:33 Type:stat Title:Total Linux GridPos:{H:2 W:3 X:0 Y:10}} {Id:34 Type:stat Title:Total AIX GridPos:{H:2 W:3 X:3 Y:10}} {Id:48 Type:stat Title:Total Solaris GridPos:{H:2 W:3 X:6 Y:10}} {Id:24 Type:stat Title:Agent GridPos:{H:2 W:3 X:9 Y:10}}"

Cause

This error typically occurs when dashboard queries are not optimized or are too broad.

Heavily generic query patterns cause performance issues and timeouts during the parallel PNG rendering process required to build the PDF report.

Resolution

To resolve this issue, optimize the dashboard queries to reduce the data load and rendering time:

1. Review Query Specificity: Ensure that your dashboard queries are not overly generic. Avoid using broad wildcard patterns such as "UIM\|.*" for source name specifiers.

2. Align with Best Practices: Review the dashboard configuration and ensure it is fully in line with Broadcom's recommended best practices for DX Dashboards 

3. Escalate to Support: If the dashboard adheres to all best practices and the issue persists, export the dashboard definition (JSON file) and contact Broadcom Support for further investigation.