66e43912d6
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
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
/*
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* Copyright (C) 2021-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include "readers/flat_mutation_reader_fwd.hh"
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#include "readers/flat_mutation_reader_v2.hh"
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#include "sstables/progress_monitor.hh"
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namespace sstables {
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namespace mx {
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// Precondition: if the slice is reversed, the schema must be reversed as well
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// and the range must be singular (`range.is_singular()`).
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// Reversed slices must be provided in the 'half-reversed' format (the order of ranges
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// being reversed, but the ranges themselves are not).
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// Fast-forwarding is not supported in reversed queries (FIXME).
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flat_mutation_reader_v2 make_reader(
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shared_sstable sstable,
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schema_ptr schema,
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reader_permit permit,
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const dht::partition_range& range,
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const query::partition_slice& slice,
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tracing::trace_state_ptr trace_state,
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streamed_mutation::forwarding fwd,
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mutation_reader::forwarding fwd_mr,
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read_monitor& monitor);
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// Same as above but the slice is moved and stored inside the reader.
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flat_mutation_reader_v2 make_reader(
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shared_sstable sstable,
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schema_ptr schema,
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reader_permit permit,
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const dht::partition_range& range,
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query::partition_slice&& slice,
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tracing::trace_state_ptr trace_state,
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streamed_mutation::forwarding fwd,
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mutation_reader::forwarding fwd_mr,
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read_monitor& monitor);
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// A reader which doesn't use the index at all. It reads everything from the
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// sstable and it doesn't support skipping.
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flat_mutation_reader_v2 make_crawling_reader(
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shared_sstable sstable,
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schema_ptr schema,
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reader_permit permit,
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tracing::trace_state_ptr trace_state,
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read_monitor& monitor);
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// Validate the content of the sstable with the mutation_fragment_stream_valdiator,
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// additionally cross checking that the content is laid out as expected by the
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// index and promoted index respectively.
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future<uint64_t> validate(
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shared_sstable sstable,
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reader_permit permit,
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abort_source& abort,
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std::function<void(sstring)> error_handler);
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} // namespace mx
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} // namespace sstables
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