* Use enum variables to invoke Priority checking
* add an explicit isDataMovementForReadBalancing function
* Set up RelocateShard in terms of data movement reason instead of priority
* Remove isMountainChopperPriority
* Remove isDiskRebalancePriority
* Fix formatting
* Fix misnamed DataMovementReason::TEAM_HEALTHY
Co-authored-by: Zhongxing Zhang <zhongxing.zhang@snowflake.com>
* proof of concept
* use code-probe instead of test
* code probe working on gcc
* code probe implemented
* renamed TestProbe to CodeProbe
* fixed refactoring typo
* support filtered output
* print probes at end of simulation
* fix missed probes print
* fix deduplication
* Fix refactoring issues
* revert bad refactor
* make sure file paths are relative
* fix more wrong refactor changes
* Shard based move.
* Clean up.
* Clear results on retry in getInitialDataDistribution.
* Remove assertion on SHARD_ENCODE_LOCATION_METADATA for compatibility.
* Resolved comments.
Co-authored-by: He Liu <heliu@apple.com>
* Fix comments
* Add simulation value for SERVER_KNOBS->SNAP_CREATE_MAX_TIMEOUT
* A work version with correctness clean
* Remove unnecessay comments; debugging symbols
* Only check secondary address for coordinators, same as before
* Change the trace to SevError and remove the ASSERT(false)
* Remove TLogSnapRequest handling on TlogServer, which is changed to use WorkerSnapRequest
* Add retry for network failures
* Add retry limit for network failures; still allow duplicate snapshots on processes are both tlog and storage to avoid race
* Add retry limit as a knob and make backoff exponentail
* Add getDatabaseConfiguration(Transaction* tr)
* revert back to send request for each role once
* update some comments
* Add an DD tenant-cache-assembly actor
* Add basic tenant list monitoring for tenant cache.
* Update DD tenant cache refresh to be more efficient and unit-testable
* Remove the DD prefix in the tenant cache class name (and associated impl and UT class names); there is nothing specific to DD in it; DD uses it; other modules may use it in the future
* Disable DD tenant awareness by default
Instead, in order to enforce the maximum fault tolerance for snapshots,
update getStorageWorkers to return the number of unavailable storage
servers (instead of throwing an error when unavailable storage servers
exist).
Xiaoxi Wang