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BOSH Command Results in Error "Failed to Map Segment from Shared Object: Cannot Allocate Memory"

Environment

Pivotal Cloud Foundry® (PCF) versions 1.5.x, 1.6.x, and 1.7.x

Symptom

When attempting to run BOSH commands, such as "bosh vms", "bosh status", or "bosh instances", you get an error similar to the following:

ubuntu@pivotal-ops-manager:/var/tempest/workspaces/default/deployments$ bosh status Failed to load plugin /home/tempest-web/tempest/web/vendor/bundle/ruby/2.2.0/gems/bosh_cli_plugin_micro-1.3146.6.0/lib/bosh/cli/commands/micro.rb: /home/tempest-web/tempest/web/vendor/bundle/ruby/2.2.0/extensions/x86_64-linux/2.2.0-static/sqlite3-1.3.11/sqlite3/sqlite3_native.so: failed to map segment from shared object: Cannot allocate memory - /home/tempest-web/tempest/web/vendor/bundle/ruby/2.2.0/extensions/x86_64-linux/2.2.0-static/sqlite3-1.3.11/sqlite3/sqlite3_native.so

The key component to this error is the "failed to map segment from shared object: Cannot allocate memory" part.

Cause

The cause of this issue is that the director virtual machine (VM) doesn't have enough memory to run the command, thus resulting in the error that you are seeing.

Resolution

In the instance where this issue was observed, the memory of the Director VM was set to 2GB. The recommended minimum amount of memory for the Director and the Ops Manager Virtual Machine is 4GB. This setting can be changed in the Ops Manager, in the resource config inside of the Ops Manager Director Tile. It can also be changed in the VM settings for the Ops Manager in your IaaS dashboard, but we recommend changing this value in the Ops Manager as changes made directly in the IaaS will not persist beyond the life of the current VM.

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