Add multi-database support to EchoVault#83

Merged

kelvinmwinuka merged 45 commits intomainfrom feature/multi-database

Jul 2, 2024

+5,999-8,534

Commits on Jun 30, 2024

Added placeholders for adding protocol and database version in raft replication flow
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Added database support for keyspace methods. Commented cache methods and standalone persistence initialisation until their implementations support databases as well.
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Caches and volatile key tracking slices for each database.
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Added support for multiple databases on the evictKeysWithExpiredTTL function
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Added multi-database support in updateKeysInCache method
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Disabled adjustMemory memory until a multi-database implementation is done. Updated function signatures in handler params for built-in commands and for modules. Disabled snapshots and snapshot rest…
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Fixed typo in keyspace.go
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Initialise volatile key tracker on startup. Create a database if it does not exist when trying to set a value.
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Added tracking for embedded client connection info. Moved logic to determine which connection info to use into the handleCommand function.
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Added support for HELLO command.
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Moved AUTH command from the acl module to the connection module. Added echo command to the list of commands that are skipped on ACL authorization.
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Added ability to set the connection's database in SetConnectionInfo function. Implemented SELECT command to allow TCP connections to select a different database.
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Implemented SWAPDB command handler.
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Implemented FLUSHDB and FLUSHALL command to clear logical databases.
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Added emebedded API methods to change Protocol and logical DB. Added comments to SwapDBs and Flush methods.
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quit
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Added check for readKeys and writeKeys length before checking for authorization in acl module. Added tests for HELLO and SELECT client-server commands
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Implemented tests for FLUSHDB and FLUSHALL commands
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Implemented test for SWAPDB command.
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Implemented test for SelectDB and SetProtocol methods
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Added multi-database support to snapshot module
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Added multi-database support for loggin and restoring in log engine.
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Restore multi-database state in FSM in the raft layer
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feat: INCR command added

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Implemented test for INCR embedded API.
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Updated coverage report
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feat: added DECR command support

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feat: added DECRBY command

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feat: added DECRBY command

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added tests

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added test for RENAME command

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Disabled adjustMemory memory until a multi-database implementation is done. Updated function signatures in handler params for built-in commands and for modules. Disabled snapshots and snapshot rest…
kelvinmwinuka
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Implemented FLUSHDB and FLUSHALL command to clear logical databases.
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Implemented tests for FLUSHDB and FLUSHALL commands
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Implemented test for SWAPDB command.
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Added multi-database support for loggin and restoring in log engine.
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Re-implemented snapshot.go logic to persist and restore multi-database state
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Removed redeclared keyspace functions
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Obtain a read lock on connection info before logging command.
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Added mutex for accessing number of nodes in memberlist layer.
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Changed noOfNodesMut to RWMutex
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Updated coverage report
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Commits on Jul 1, 2024

Commits on Jul 2, 2024

Close AOF engine files on shutdown. Close snapshot file after restoring snapshot on startup. Implemented tests for HELLO command in echovault package. Implemented tests for GetServerInfo in echovau…
kelvinmwinuka
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