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#include "drizzled/drizzled.h"
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#include "drizzled/module/registry.h"
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#include "drizzled/module/load_list.h"
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#include "drizzled/global_buffer.h"
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#include "drizzled/plugin/event_observer.h"
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atomic<uint32_t> connection_count;
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global_buffer_constraint<uint64_t> global_sort_buffer(0);
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global_buffer_constraint<uint64_t> global_join_buffer(0);
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global_buffer_constraint<uint64_t> global_read_rnd_buffer(0);
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global_buffer_constraint<uint64_t> global_read_buffer(0);
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Refresh value. We use to test this to find out if a refresh even has happened recently.
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N_("The maximum length of the result of function group_concat."))
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("join-buffer-size", po::value<uint64_t>(&global_system_variables.join_buff_size)->default_value(128*1024L)->notifier(&check_limits_join_buffer_size),
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N_("The size of the buffer that is used for full joins."))
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("join-heap-threshold",
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po::value<uint64_t>()->default_value(0),
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N_("A global cap on the amount of memory that can be allocated by session join buffers (0 means unlimited)"))
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("max-allowed-packet", po::value<uint32_t>(&global_system_variables.max_allowed_packet)->default_value(64*1024*1024L)->notifier(&check_limits_map),
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N_("Max packetlength to send/receive from to server."))
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("max-connect-errors", po::value<uint64_t>(&max_connect_errors)->default_value(MAX_CONNECT_ERRORS)->notifier(&check_limits_mce),
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N_("Each thread that does a sequential scan allocates a buffer of this "
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"size for each table it scans. If you do many sequential scans, you may "
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"want to increase this value."))
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("read-buffer-threshold",
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po::value<uint64_t>()->default_value(0),
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N_("A global cap on the size of read-buffer-size (0 means unlimited)"))
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("read-rnd-buffer-size",
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po::value<uint32_t>(&global_system_variables.read_rnd_buff_size)->default_value(256*1024L)->notifier(&check_limits_read_rnd_buffer_size),
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N_("When reading rows in sorted order after a sort, the rows are read "
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"through this buffer to avoid a disk seeks. If not set, then it's set "
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"to the value of record_buffer."))
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("read-rnd-threshold",
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po::value<uint64_t>()->default_value(0),
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N_("A global cap on the size of read-rnd-buffer-size (0 means unlimited)"))
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("scheduler", po::value<string>(),
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N_("Select scheduler to be used (by default multi-thread)."))
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("sort-buffer-size",
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po::value<size_t>(&global_system_variables.sortbuff_size)->default_value(MAX_SORT_MEMORY)->notifier(&check_limits_sort_buffer_size),
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N_("Each thread that needs to do a sort allocates a buffer of this size."))
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("sort-heap-threshold",
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po::value<uint64_t>()->default_value(0),
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N_("A global cap on the amount of memory that can be allocated by session sort buffers (0 means unlimited)"))
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("table-definition-cache", po::value<size_t>(&table_def_size)->default_value(128)->notifier(&check_limits_tdc),
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N_("The number of cached table definitions."))
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("table-open-cache", po::value<uint64_t>(&table_cache_size)->default_value(TABLE_OPEN_CACHE_DEFAULT)->notifier(&check_limits_toc),
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if (vm.count("sort-heap-threshold"))
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if ((vm["sort-heap-threshold"].as<uint64_t>() > 0) and
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(vm["sort-heap-threshold"].as<uint64_t>() <
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global_system_variables.sortbuff_size))
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cout << N_("Error: sort-heap-threshold cannot be less than sort-buffer-size") << endl;
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global_sort_buffer.setMaxSize(vm["sort-heap-threshold"].as<uint64_t>());
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if (vm.count("join-heap-threshold"))
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if ((vm["join-heap-threshold"].as<uint64_t>() > 0) and
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(vm["join-heap-threshold"].as<uint64_t>() <
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global_system_variables.join_buff_size))
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cout << N_("Error: join-heap-threshold cannot be less than join-buffer-size") << endl;
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global_join_buffer.setMaxSize(vm["join-heap-threshold"].as<uint64_t>());
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if (vm.count("read-rnd-threshold"))
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if ((vm["read-rnd-threshold"].as<uint64_t>() > 0) and
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(vm["read-rnd-threshold"].as<uint64_t>() <
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global_system_variables.read_rnd_buff_size))
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cout << N_("Error: read-rnd-threshold cannot be less than read-rnd-buffer-size") << endl;
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global_read_rnd_buffer.setMaxSize(vm["read-rnd-threshold"].as<uint64_t>());
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if (vm.count("read-buffer-threshold"))
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if ((vm["read-buffer-threshold"].as<uint64_t>() > 0) and
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(vm["read-buffer-threshold"].as<uint64_t>() <
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global_system_variables.read_buff_size))
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cout << N_("Error: read-buffer-threshold cannot be less than read-buffer-size") << endl;
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global_read_buffer.setMaxSize(vm["read-buffer-threshold"].as<uint64_t>());
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if (vm.count("exit-info"))
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if (vm["exit-info"].as<long>())