Online Backup (OLB) does not start

Products

• Network Observability
• Spectrum

Issue/Introduction

In the Online Database Backup subview of the VNM model we see "Backup In Progress" but nothing else happens.

Enabling the Online Backup in debug mode does not print anything in the $SPECROOT/SS/VNM.OUT file.

Environment

DX NetOps Spectrum: Any version

Cause

SpectroSERVER is busy due to the Global Collections Real-Time Update.

Ran pstack and noticed the SpectroSERVER was stuck in searching.

pstack <PID of SpectroSERVER>   (run as root or sudo)

 in attrcmp_regex(char const*, void const*, int*, int) () from /opt/SPECTRUM/lib/../libsskrnl.so.1
 in CsLandscape::match_keyed_attr(CsFindSpec const*, void const*, int) () from /opt/SPECTRUM/lib/../SS/libsskrnl.so.1
 in CsLandscape::search_keyed_models(CsFindSpec const*, CsULHashTable*, CsFindSpec::LogicalOp_e, CsULHashTable*, int) () from /opt/SPECTRUM/lib/../SS/libsskrnl.so.1
 in CsLandscape::terminal_find_model_handles(CsFindSpec const*, CsULHashTable*, CsFindSpec::LogicalOp_e, CsError::CsError_e*, int) () from /opt/SPECTRUM/lib/../SS/libsskrnl.so.1
 in CsLandscape::find_model_handles(CsFindSpec const*, CsError::CsError_e*, CsSecurityIf const*, int) () from /opt/SPECTRUM/lib/../SS/libsskrnl.so.1
 in SearchManager::model_matches(CsModelHandle const&, SearchManagerNode*, int&) () from /opt/SPECTRUM/lib/../SS/libsskrnl.so.1

Resolution

 Change all Global Collections from Real-Time Update Method to Periodic - Every 24 hours via Attribute Editor to change in bulk.

• dynamicUpdateInterval to 1440 min (24 hours)
• EnableInstantUpdate to No

Shutdown SpectroSERVER, take an off line backup of the SSdb. Then start it back.

Successfully performed the OnLineBackup.

Additional Information

Pstack after fixing the issue: