761f89e55e
Evicts objects from caches which reflect sstable content, like the row cache. In the future, it will also drop the page cache and sstable index caches. Unlike lsa/compact, doesn't cause reactor stalls. The old lsa/compact call invokes memory reclamation, which is non-preemptible. It also compacts LSA segments, so does more work. Some use cases don't need to compact LSA segments, just want the row cache to be wiped. Message-Id: <20210301120211.36195-1-tgrabiec@scylladb.com>
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/*
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "api/api-doc/system.json.hh"
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#include "api/api.hh"
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#include <seastar/core/reactor.hh>
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#include <seastar/http/exception.hh>
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#include "log.hh"
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#include "database.hh"
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extern logging::logger apilog;
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namespace api {
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namespace hs = httpd::system_json;
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void set_system(http_context& ctx, routes& r) {
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hs::get_system_uptime.set(r, [](const_req req) {
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return std::chrono::duration_cast<std::chrono::milliseconds>(engine().uptime()).count();
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});
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hs::get_all_logger_names.set(r, [](const_req req) {
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return logging::logger_registry().get_all_logger_names();
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});
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hs::set_all_logger_level.set(r, [](const_req req) {
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try {
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logging::log_level level = boost::lexical_cast<logging::log_level>(std::string(req.get_query_param("level")));
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logging::logger_registry().set_all_loggers_level(level);
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} catch (boost::bad_lexical_cast& e) {
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throw bad_param_exception("Unknown logging level " + req.get_query_param("level"));
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}
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return json::json_void();
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});
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hs::get_logger_level.set(r, [](const_req req) {
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try {
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return logging::level_name(logging::logger_registry().get_logger_level(req.param["name"]));
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} catch (std::out_of_range& e) {
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throw bad_param_exception("Unknown logger name " + req.param["name"]);
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}
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// just to keep the compiler happy
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return sstring();
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});
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hs::set_logger_level.set(r, [](const_req req) {
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try {
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logging::log_level level = boost::lexical_cast<logging::log_level>(std::string(req.get_query_param("level")));
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logging::logger_registry().set_logger_level(req.param["name"], level);
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} catch (std::out_of_range& e) {
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throw bad_param_exception("Unknown logger name " + req.param["name"]);
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} catch (boost::bad_lexical_cast& e) {
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throw bad_param_exception("Unknown logging level " + req.get_query_param("level"));
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}
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return json::json_void();
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});
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hs::drop_sstable_caches.set(r, [&ctx](std::unique_ptr<request> req) {
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apilog.info("Dropping sstable caches");
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return ctx.db.invoke_on_all([] (database& db) {
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return db.drop_caches();
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}).then([] {
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apilog.info("Caches dropped");
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return json::json_return_type(json::json_void());
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});
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});
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}
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}
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