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/*
Copyright 2018-2019, Barcelona Supercomputing Center (BSC), Spain
Copyright 2015-2019, Johannes Gutenberg Universitaet Mainz, Germany
This software was partially supported by the
EC H2020 funded project NEXTGenIO (Project ID: 671951, www.nextgenio.eu).
This software was partially supported by the
ADA-FS project under the SPPEXA project funded by the DFG.
SPDX-License-Identifier: MIT
*/
#ifndef GEKKOFS_CONFIG_HPP
#define GEKKOFS_CONFIG_HPP
#include <global/cmake_configure.hpp>
// environment prefixes (are concatenated in env module at compile time)
#define CLIENT_ENV_PREFIX "LIBGKFS_"
#define DAEMON_ENV_PREFIX "GKFS_"
namespace gkfs_config {
constexpr auto hostfile_path = "./gkfs_hosts.txt";
namespace io {
/*
* Zero buffer before read. This is relevant if sparse files are used.
* If buffer is not zeroed, sparse regions contain invalid data.
*/
constexpr auto zero_buffer_before_read = false;
}
namespace logging {
constexpr auto client_log_path = "/tmp/gkfs_client.log";
constexpr auto daemon_log_path = "/tmp/gkfs_daemon.log";
constexpr auto client_log_level = "info,errors,critical,mercury";
constexpr auto daemon_log_level = 4; //info
}
namespace metadata {
// which metadata should be considered apart from size and mode
constexpr auto use_atime = false;
constexpr auto use_ctime = false;
constexpr auto use_mtime = false;
constexpr auto use_link_cnt = false;
constexpr auto use_blocks = false;
}
namespace rpc {
constexpr auto chunksize = 524288; // in bytes (e.g., 524288 == 512KB)
//size of preallocated buffer to hold directory entries in rpc call
constexpr auto dirents_buff_size = (8 * 1024 * 1024); // 8 mega
/*
* Indicates the number of concurrent progress to drive I/O operations of chunk files to and from local file systems
* The value is directly mapped to created Argobots xstreams, controlled in a single pool with ABT_snoozer scheduler
*/
constexpr auto daemon_io_xstreams = 8;
// Number of threads used for RPC handlers at the daemon
constexpr auto daemon_handler_xstreams = 8;
}
namespace rocksdb {
// Write-ahead logging of rocksdb
constexpr auto use_write_ahead_log = false;
}
}
#endif //GEKKOFS_CONFIG_HPP