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initial commit to add cache_range to fdbcli

This commit is contained in:
Jon Fu 2020-08-06 12:23:31 -04:00
parent 78da7b36de
commit a707227092
1 changed files with 23 additions and 0 deletions
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23
fdbcli/fdbcli.actor.cpp
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@ -581,6 +581,11 @@ void initHelp() {
"view and control throttled tags",
"Use `on' and `off' to manually throttle or unthrottle tags. Use `enable auto' or `disable auto' to enable or disable automatic tag throttling. Use `list' to print the list of throttled tags.\n"
);
helpMap["cache_range"] = CommandHelp(
"cache_range <set|clear> <BEGINKEY> <ENDKEY>",
"Mark a key range to add to or remove from storage caches.",
"Use the storage caches to assist in balancing hot read shards. Set the appropriate ranges when experiencing heavy load, and clear them when they are no longer necessary."
);
helpMap["lock"] = CommandHelp(
"lock",
"lock the database with a randomly generated lockUID",
@ -4316,6 +4321,24 @@ ACTOR Future<int> cli(CLIOptions opt, LineNoise* plinenoise) {
}
continue;
}
if (tokencmp(tokens[0], "cache_range")) {
if (tokens.size() != 4) {
printUsage(tokens[0]);
is_error = true;
continue;
}
KeyRangeRef cacheRange(tokens[2], tokens[3]);
if (tokencmp(tokens[1], "set")) {
wait(makeInterruptable(addCachedRange(db, cacheRange)));
} else if (tokencmp(tokens[1], "clear")) {
wait(makeInterruptable(removeCachedRange(db, cacheRange)));
} else {
printUsage(tokens[0]);
is_error = true;
}
continue;
}
printf("ERROR: Unknown command `%s'. Try `help'?\n", formatStringRef(tokens[0]).c_str());
is_error = true;