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This commit is contained in:
Vitaliy Filippov
2024-05-15 11:06:01 +03:00
parent 44692d148a
commit c79b38bd26
219 changed files with 465 additions and 433 deletions
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src/blockstore/blockstore_open.cpp
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// Copyright (c) Vitaliy Filippov, 2019+
// License: VNPL-1.1 (see README.md for details)
#include <sys/file.h>
#include "blockstore_impl.h"
void blockstore_impl_t::parse_config(blockstore_config_t & config, bool init)
{
// Online-configurable options:
max_flusher_count = strtoull(config["max_flusher_count"].c_str(), NULL, 10);
if (!max_flusher_count)
{
max_flusher_count = strtoull(config["flusher_count"].c_str(), NULL, 10);
}
min_flusher_count = strtoull(config["min_flusher_count"].c_str(), NULL, 10);
journal_trim_interval = strtoull(config["journal_trim_interval"].c_str(), NULL, 10);
max_write_iodepth = strtoull(config["max_write_iodepth"].c_str(), NULL, 10);
throttle_small_writes = config["throttle_small_writes"] == "true" || config["throttle_small_writes"] == "1" || config["throttle_small_writes"] == "yes";
throttle_target_iops = strtoull(config["throttle_target_iops"].c_str(), NULL, 10);
throttle_target_mbs = strtoull(config["throttle_target_mbs"].c_str(), NULL, 10);
throttle_target_parallelism = strtoull(config["throttle_target_parallelism"].c_str(), NULL, 10);
throttle_threshold_us = strtoull(config["throttle_threshold_us"].c_str(), NULL, 10);
if (config["autosync_writes"] != "")
{
autosync_writes = strtoull(config["autosync_writes"].c_str(), NULL, 10);
}
if (!max_flusher_count)
{
max_flusher_count = 256;
}
if (!min_flusher_count || journal.flush_journal)
{
min_flusher_count = 1;
}
if (!journal_trim_interval)
{
journal_trim_interval = 512;
}
if (!max_write_iodepth)
{
max_write_iodepth = 128;
}
if (!throttle_target_iops)
{
throttle_target_iops = 100;
}
if (!throttle_target_mbs)
{
throttle_target_mbs = 100;
}
if (!throttle_target_parallelism)
{
throttle_target_parallelism = 1;
}
if (!throttle_threshold_us)
{
throttle_threshold_us = 50;
}
if (!init)
{
return;
}
// Offline-configurable options:
// Common disk options
dsk.parse_config(config);
// Parse
if (config["readonly"] == "true" || config["readonly"] == "1" || config["readonly"] == "yes")
{
readonly = true;
}
if (config["disable_data_fsync"] == "true" || config["disable_data_fsync"] == "1" || config["disable_data_fsync"] == "yes")
{
disable_data_fsync = true;
}
if (config["disable_meta_fsync"] == "true" || config["disable_meta_fsync"] == "1" || config["disable_meta_fsync"] == "yes")
{
disable_meta_fsync = true;
}
if (config["disable_journal_fsync"] == "true" || config["disable_journal_fsync"] == "1" || config["disable_journal_fsync"] == "yes")
{
disable_journal_fsync = true;
}
if (config["flush_journal"] == "true" || config["flush_journal"] == "1" || config["flush_journal"] == "yes")
{
// Only flush journal and exit
journal.flush_journal = true;
}
if (config["immediate_commit"] == "all")
{
immediate_commit = IMMEDIATE_ALL;
}
else if (config["immediate_commit"] == "small")
{
immediate_commit = IMMEDIATE_SMALL;
}
metadata_buf_size = strtoull(config["meta_buf_size"].c_str(), NULL, 10);
inmemory_meta = config["inmemory_metadata"] != "false" && config["inmemory_metadata"] != "0" &&
config["inmemory_metadata"] != "no";
journal.sector_count = strtoull(config["journal_sector_buffer_count"].c_str(), NULL, 10);
journal.no_same_sector_overwrites = config["journal_no_same_sector_overwrites"] == "true" ||
config["journal_no_same_sector_overwrites"] == "1" || config["journal_no_same_sector_overwrites"] == "yes";
journal.inmemory = config["inmemory_journal"] != "false" && config["inmemory_journal"] != "0" &&
config["inmemory_journal"] != "no";
// Validate
if (journal.sector_count < 2)
{
journal.sector_count = 32;
}
if (metadata_buf_size < 65536)
{
metadata_buf_size = 4*1024*1024;
}
if (dsk.meta_device == dsk.data_device)
{
disable_meta_fsync = disable_data_fsync;
}
if (dsk.journal_device == dsk.meta_device)
{
disable_journal_fsync = disable_meta_fsync;
}
if (immediate_commit != IMMEDIATE_NONE && !disable_journal_fsync)
{
throw std::runtime_error("immediate_commit requires disable_journal_fsync");
}
if (immediate_commit == IMMEDIATE_ALL && !disable_data_fsync)
{
throw std::runtime_error("immediate_commit=all requires disable_journal_fsync and disable_data_fsync");
}
// init some fields
journal.block_size = dsk.journal_block_size;
journal.next_free = dsk.journal_block_size;
journal.used_start = dsk.journal_block_size;
// no free space because sector is initially unmapped
journal.in_sector_pos = dsk.journal_block_size;
}
void blockstore_impl_t::calc_lengths()
{
dsk.calc_lengths();
journal.len = dsk.journal_len;
journal.block_size = dsk.journal_block_size;
journal.offset = dsk.journal_offset;
if (inmemory_meta)
{
metadata_buffer = memalign(MEM_ALIGNMENT, dsk.meta_len);
if (!metadata_buffer)
throw std::runtime_error("Failed to allocate memory for the metadata ("+std::to_string(dsk.meta_len/1024/1024)+" MB)");
}
else if (dsk.clean_entry_bitmap_size || dsk.data_csum_type)
{
clean_bitmaps = (uint8_t*)malloc(dsk.block_count * 2 * dsk.clean_entry_bitmap_size);
if (!clean_bitmaps)
{
throw std::runtime_error(
"Failed to allocate memory for the metadata sparse write bitmap ("+
std::to_string(dsk.block_count * 2 * dsk.clean_entry_bitmap_size / 1024 / 1024)+" MB)"
);
}
}
if (journal.inmemory)
{
journal.buffer = memalign(MEM_ALIGNMENT, journal.len);
if (!journal.buffer)
throw std::runtime_error("Failed to allocate memory for journal ("+std::to_string(journal.len/1024/1024)+" MB)");
}
else
{
journal.sector_buf = (uint8_t*)memalign(MEM_ALIGNMENT, journal.sector_count * dsk.journal_block_size);
if (!journal.sector_buf)
throw std::bad_alloc();
}
journal.sector_info = (journal_sector_info_t*)calloc(journal.sector_count, sizeof(journal_sector_info_t));
if (!journal.sector_info)
{
throw std::bad_alloc();
}
}