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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "crimson/admin/pg_commands.h"
#include <memory>
#include <string>
#include <string_view>
#include <fmt/format.h>
#include <seastar/core/future.hh>
#include "crimson/admin/admin_socket.h"
#include "crimson/osd/osd.h"
#include "crimson/osd/pg.h"
using crimson::osd::OSD;
using crimson::osd::PG;
using namespace crimson::common;
namespace crimson::admin::pg {
class PGCommand : public AdminSocketHook {
public:
// TODO: const correctness of osd
PGCommand(crimson::osd::OSD& osd,
std::string_view prefix,
std::string_view desc,
std::string_view help)
: AdminSocketHook{prefix, desc, help}, osd {osd}
{}
seastar::future<tell_result_t> call(const cmdmap_t& cmdmap,
std::string_view format,
ceph::bufferlist&& input) const final
{
// we have "ceph tell <pgid> <cmd>". and it is the ceph cli's responsibility
// to add "pgid" to the cmd dict. as rados_pg_command() does not set it for
// us. moreover, and "pgid" is not listed in the command description, as user
// command format does not follow the convention of "<prefix> [<args>,...]"
// so we have to verify it on the server side.
std::string pgid_str;
pg_t pgid;
if (!cmd_getval(cmdmap, "pgid", pgid_str)) {
return seastar::make_ready_future<tell_result_t>(
tell_result_t{-EINVAL, "no pgid specified"});
} else if (!pgid.parse(pgid_str.c_str())) {
return seastar::make_ready_future<tell_result_t>(
tell_result_t{-EINVAL, fmt::format("couldn't parse pgid '{}'", pgid_str)});
}
// am i the primary for this pg?
const auto osdmap = osd.get_shard_services().get_osdmap();
spg_t spg_id;
if (!osdmap->get_primary_shard(pgid, &spg_id)) {
return seastar::make_ready_future<tell_result_t>(tell_result_t{
-ENOENT, fmt::format("pgid '{}' does not exist", pgid_str)});
}
Ref<PG> pg = osd.get_pg(spg_id);
if (!pg) {
return seastar::make_ready_future<tell_result_t>(tell_result_t{
-ENOENT, fmt::format("i don't have pgid '{}'", spg_id)});
}
if (!pg->is_primary()) {
return seastar::make_ready_future<tell_result_t>(tell_result_t{
-EAGAIN, fmt::format("not primary for pgid '{}'", spg_id)});
}
return this->do_command(pg, cmdmap, format, std::move(input));
}
private:
virtual seastar::future<tell_result_t>
do_command(Ref<PG> pg,
const cmdmap_t& cmdmap,
std::string_view format,
ceph::bufferlist&& input) const = 0;
OSD& osd;
};
class QueryCommand final : public PGCommand {
public:
// TODO: const correctness of osd
explicit QueryCommand(crimson::osd::OSD& osd) :
PGCommand{osd,
"query",
"",
"show details of a specific pg"}
{}
private:
seastar::future<tell_result_t>
do_command(Ref<PG> pg,
const cmdmap_t&,
std::string_view format,
ceph::bufferlist&& input) const final
{
std::unique_ptr<Formatter> f{Formatter::create(format,
"json-pretty",
"json-pretty")};
f->open_object_section("pg");
pg->dump_primary(f.get());
f->close_section();
return seastar::make_ready_future<tell_result_t>(std::move(f));
}
};
class MarkUnfoundLostCommand final : public PGCommand {
public:
explicit MarkUnfoundLostCommand(crimson::osd::OSD& osd) :
PGCommand{osd,
"mark_unfound_lost",
"name=pgid,type=CephPgid,req=false"
" name=mulcmd,type=CephChoices,strings=revert|delete",
"mark all unfound objects in this pg as lost, either"
" removing or reverting to a prior version if one is"
" available"}
{}
seastar::future<tell_result_t>
do_command(Ref<PG> pg,
const cmdmap_t& cmdmap,
std::string_view,
ceph::bufferlist&&) const final
{
// what to do with the unfound object specifically.
std::string cmd;
int op = -1;
cmd_getval(cmdmap, "mulcmd", cmd);
if (cmd == "revert") {
op = pg_log_entry_t::LOST_REVERT;
} else if (cmd == "delete") {
op = pg_log_entry_t::LOST_DELETE;
} else {
return seastar::make_ready_future<tell_result_t>(tell_result_t{
-EINVAL, "mode must be 'revert' or 'delete'; mark not yet implemented"});
}
return pg->mark_unfound_lost(op).then([] {
// TODO
return seastar::make_ready_future<tell_result_t>();
});
}
};
} // namespace crimson::admin::pg
namespace crimson::admin {
template <class Hook, class... Args>
std::unique_ptr<AdminSocketHook> make_asok_hook(Args&&... args)
{
return std::make_unique<Hook>(std::forward<Args>(args)...);
}
template std::unique_ptr<AdminSocketHook>
make_asok_hook<crimson::admin::pg::QueryCommand>(crimson::osd::OSD& osd);
template std::unique_ptr<AdminSocketHook>
make_asok_hook<crimson::admin::pg::MarkUnfoundLostCommand>(crimson::osd::OSD& osd);
} // namespace crimson::admin
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