Files
scylladb/sstables/mx/writer.hh
Pavel Emelyanov 66e43912d6 code: Switch to seastar API level 7
In that level no io_priority_class-es exist. Instead, all the IO happens
in the context of current sched-group. File API no longer accepts prio
class argument (and makes io_intent arg mandatory to impls).

So the change consists of
- removing all usage of io_priority_class
- patching file_impl's inheritants to updated API
- priority manager goes away altogether
- IO bandwidth update is performed on respective sched group
- tune-up scylla-gdb.py io_queues command

The first change is huge and was made semi-autimatically by:
- grep io_priority_class | default_priority_class
- remove all calls, found methods' args and class' fields

Patching file_impl-s is smaller, but also mechanical:
- replace io_priority_class& argument with io_intent* one
- pass intent to lower file (if applicatble)

Dropping the priority manager is:
- git-rm .cc and .hh
- sed out all the #include-s
- fix configure.py and cmakefile

The scylla-gdb.py update is a bit hairry -- it needs to use task queues
list for IO classes names and shares, but to detect it should it checks
for the "commitlog" group is present.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>

Closes #13963
2023-06-06 13:29:16 +03:00

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C++

/*
* Copyright (C) 2018-present ScyllaDB
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include "sstables/writer_impl.hh"
#include "sstables/types.hh"
#include "encoding_stats.hh"
namespace sstables {
namespace mc {
std::unique_ptr<sstable_writer::writer_impl> make_writer(sstable& sst,
const schema& s,
uint64_t estimated_partitions,
const sstable_writer_config& cfg,
encoding_stats enc_stats,
shard_id shard);
}
}