feat: Add support of the command Migrate #2863
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clouder-zhai
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PragmaTwice
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src/commands/cmd_server.cc
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| static Status DumpKey(engine::Context &ctx, Server *srv, Connection *conn, std::string &key, | ||
| std::string &dump_result) { |
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| static Status DumpKey(engine::Context &ctx, Server *srv, Connection *conn, std::string &key, | |
| std::string &dump_result) { | |
| static StatusOr<std::string> DumpKey(engine::Context &ctx, Server *srv, Connection *conn, std::string &key) { |
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when I run ./x.py format, it automatically becomes two lines
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I mean we can use StatusOr here instead of Status.
PragmaTwice
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src/commands/cmd_server.cc
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| MakeCmdAttr<CommandDump>("dump", 2, "read-only", 1, 1, 1), | ||
| MakeCmdAttr<CommandPollUpdates>("pollupdates", -2, "read-only admin", NO_KEY), ) | ||
| MakeCmdAttr<CommandPollUpdates>("pollupdates", -2, "read-only admin", NO_KEY), | ||
| MakeCmdAttr<CommandMigrate>("migrate", -6, "write", 1, 1, 1)) |
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| MakeCmdAttr<CommandMigrate>("migrate", -6, "write", 1, 1, 1)) | |
| MakeCmdAttr<CommandMigrate>("migrate", 6, "write", 1, 1, 1)) |
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Also the key position spec is wrong (1,1,1).
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| MakeCmdAttr<CommandDump>("dump", 2, "read-only", 1, 1, 1), | ||
| MakeCmdAttr<CommandPollUpdates>("pollupdates", -2, "read-only admin", NO_KEY), ) | ||
| MakeCmdAttr<CommandPollUpdates>("pollupdates", -2, "read-only admin", NO_KEY), | ||
| MakeCmdAttr<CommandMigrate>("migrate", -6, "write", 1, -1, 1)) |
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1, -1, 1 means that all arguments are keys, which is obviously not correct here.
You can refer to here for how to generate dynamic key ranges: https://github.com/apache/kvrocks/blob/unstable/src/commands/cmd_zset.cc#L1552
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Close #1949
Command Desc:
Redis doc: https://redis.io/docs/latest/commands/migrate/