Properties installed with Developer Sandboxes

The system properties available in Developer Sandboxes govern application behavior, enabling developers to configure and optimize their testing environments effectively.

注:

To open the System Properties [sys_properties] table, enter sys_properties.list in the navigation filter.

These properties are available for Developer Sandboxes.

表 : 1. Properties for Developer Sandboxes

Property	Description	Details
glide.dev_sandbox.num.controller	Number of nodes that run as a controller. Type: number Default value: 2	Can't be 0. Increasing converts unassigned nodes to controller nodes. Decreasing converts unassigned nodes to nodes. More controller nodes mean you get fewer sandboxes.
glide.dev_sandbox.node.healthy_time_min	Time in minutes that a node is considered healthy. An unhealthy node that's assigned to a sandbox can be remediated by assigning it to another sandbox. Remediation is the process of detecting a sandbox that should be running on a node but isn't, and then assigning another node to run on the sandbox. Type: number Default value: 10	Increasing this value keeps a sandbox node up longer, so remediation happens less frequently. Decreasing it takes a node down faster, so remediation occurs more frequently. Do not set this value lower than the time it takes a node to restart, roughly 3 minutes. During a restart, the node is still considered healthy to prevent the remediator from reassigning sandboxes to another node.
glide.dev_sandbox.node.poll_interval_seconds	Number of seconds between status checks for a node expected to go offline in the sys_cluster_state table, which contains the nodes that are assigned to an instance. Type: number Default value: 10	Generally doesn't need to be changed. Used during sandbox retirement to determine how often a node is checked for being set to offline. Increasing means the polling happens more often. Decreasing means that the polling happens less often.
glide.dev_sandbox.node.poll_timeout_min	Number of minutes to wait for a node to shutdown, and have a Status of Offline in sys_cluster_state table. Type: number Default value: 2	Generally doesn't need to be changed. Used during sandbox retirement to determine how long to check for a sandbox node to be set to offline. Increasing means the polling happens longer. Decreasing means that the polling completes faster.
glide.dev_sandbox.default_table_config	Default table config in Developer Sandboxes. Type: string Default value: shared_table Other possible values: shared_table full_copy zero_copy	The full_copy value isolates tables but uses much more database space and can make sandbox creation slower, especially with large datasets. The zero_copy value also isolates tables with less initial disk space, but starts empty and may consume more space as data is added.
glide.dev_sandbox.dsb_db_copier_threads	Number of concurrent table creations in a sandbox. Type: number Default value: 1 Other possible values: 1-5	Increasing threads can create more contention and load when creating sandboxes. 警告: Do not change this value without consulting your account manager.
glide.db.dsb.data_copy_processor.threads	Number of data copy plans to run concurrently during sandbox creation. Type: number Default value: 1 Other possible values: 1-5	This value is multiplied by the glide.dev_sandbox.dsb_db_copier_threads value. Increasing threads can create more contention and load when creating sandboxes. 警告: Do not change this value without consulting your account manager.
glide.db.dsb.data_copy_processor.chunk_copy.threads	Number of data copiers running at a time for each table. Type: number Default value: 5 Other possible values: 1-5	This value is multiplied by the glide.dev_sandbox.dsb_db_copier_threads and glide.db.dsb.data_copy_processor.threads values. Decreasing this value slows down sandbox creation.
glide.dev_sandbox.cleanup_retries	Number of retries the Developer Sandboxes destroy code attempts to do clean up any leftover Developer Sandboxes tables. Type: number Default value: 3
glide.dev_sandbox.backup_tables	Tables that will be preserved for recreating developer sandboxes post clone. Type: string Default value: sys_repo_config	Comma-delimited list of tables to preserve. If a table has is referenced here, its content in each sandbox is saved and preserved during clones, then restored post-clone in the re-created sandbox(es). This property is effective only when Developer Sandboxes are enabled via the glide.dev_sandbox.enabled property, and impacts only sandboxes.
glide.dev_sandbox.export.poll_interval_seconds	Frequency in seconds that the controller node checks if a sandbox has completed exporting its altered update sets. This property is used only when exporting sandbox update sets before an instance upgrade begins. Type: number Default value: 10	Decreasing the value may help the upgrade go faster but at the cost of extra checks.
glide.dev_sandbox.export.poll_timeout_min	How long the controller node waits for a sandbox to export its altered update sets before an instance upgrade. If the timeout limit is hit, the upgrade continues regardless of export state. Type: number Default value: 10	Decreasing the value may result in unexported updates. Increasing the value helps to ensure that changes are exported, but can delay the upgrade.
glide.dev_sandbox.node.healthy_time_min	Time window in which a node must report to sys_cluster_state to be considered healthy and included in sandbox capacity calculations. Type: number Default value: 10
glide.dev_sandbox.lifecycle.max_concurrent_events	Maximum limit of concurrent sandbox allocations/retirements events. Type: number Default value: 5	Increasing the value enables more concurrent allocations/retirement, but could overload the database.