mariadb/storage/tokudb/ha_tokudb_admin.cc

/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
/*
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  This program is free software; you can redistribute it and/or modify
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  published by the Free Software Foundation, and provided that the
  following conditions are met:

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COPYRIGHT NOTICE:

  TokuDB, Tokutek Fractal Tree Indexing Library.
  Copyright (C) 2007-2013 Tokutek, Inc.

DISCLAIMER:

  This program is distributed in the hope that it will be useful, but
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  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

UNIVERSITY PATENT NOTICE:

  The technology is licensed by the Massachusetts Institute of
  Technology, Rutgers State University of New Jersey, and the Research
  Foundation of State University of New York at Stony Brook under
  United States of America Serial No. 11/760379 and to the patents
  and/or patent applications resulting from it.

PATENT MARKING NOTICE:

  This software is covered by US Patent No. 8,185,551.
  This software is covered by US Patent No. 8,489,638.

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*/

#ident "Copyright (c) 2007-2013 Tokutek Inc.  All rights reserved."
#ident "The technology is licensed by the Massachusetts Institute of Technology, Rutgers State University of New Jersey, and the Research Foundation of State University of New York at Stony Brook under United States of America Serial No. 11/760379 and to the patents and/or patent applications resulting from it."

struct analyze_progress_extra {
    THD *thd;
    TOKUDB_SHARE *share;
    TABLE_SHARE *table_share;
    uint key_i;
    const char *key_name;
    time_t t_start;
    char *write_status_msg;
};

static int analyze_progress(void *v_extra, uint64_t rows) {
    struct analyze_progress_extra *extra = (struct analyze_progress_extra *) v_extra;
    THD *thd = extra->thd;
    if (thd->killed) 
        return ER_ABORTING_CONNECTION;

    time_t t_now = time(0);
    time_t t_limit = THDVAR(thd, analyze_time);
    time_t t_start = extra->t_start;
    if (t_limit > 0 && t_now - t_start > t_limit)
        return ETIME;
    float progress_rows = 0.0;
    TOKUDB_SHARE *share = extra->share;
    if (share->rows > 0)
        progress_rows = (float) rows / (float) share->rows;
    float progress_time = 0.0;
    if (t_limit > 0)
        progress_time = (float) (t_now - t_start) / (float) t_limit;
    char *write_status_msg = extra->write_status_msg;
    TABLE_SHARE *table_share = extra->table_share;
    sprintf(write_status_msg, "%s.%s.%s %u of %u %.lf%% rows %.lf%% time", 
            table_share->db.str, table_share->table_name.str, extra->key_name,
            extra->key_i, table_share->keys, progress_rows * 100.0, progress_time * 100.0);
    thd_proc_info(thd, write_status_msg);
    return 0;
}

int ha_tokudb::analyze(THD *thd, HA_CHECK_OPT *check_opt) {
    TOKUDB_HANDLER_DBUG_ENTER("%s", share->table_name);
    uint64_t rec_per_key[table_share->key_parts];
    int result = HA_ADMIN_OK;
    DB_TXN *txn = transaction;
    if (!txn) {
        result = HA_ADMIN_FAILED;
    }
    uint total_key_parts = 0;
    if (result == HA_ADMIN_OK) {
        // compute cardinality for each key
        for (uint i = 0; result == HA_ADMIN_OK && i < table_share->keys; i++) {
            KEY *key_info = &table_share->key_info[i];
            uint64_t num_key_parts = get_key_parts(key_info);
            const char *key_name = i == primary_key ? "primary" : key_info->name;
            struct analyze_progress_extra analyze_progress_extra = {
                thd, share, table_share, i, key_name, time(0), write_status_msg
            };
            bool is_unique = false;
            if (i == primary_key || (key_info->flags & HA_NOSAME))
                is_unique = true;
            int error = tokudb::analyze_card(share->key_file[i], txn, is_unique, num_key_parts, &rec_per_key[total_key_parts],
                                             tokudb_cmp_dbt_key_parts, analyze_progress, &analyze_progress_extra);
            if (error != 0 && error != ETIME) {
                result = HA_ADMIN_FAILED;
            } else {
                // debug
                if (tokudb_debug & TOKUDB_DEBUG_ANALYZE) {
                    TOKUDB_HANDLER_TRACE("%s.%s.%s", 
                                         table_share->db.str, table_share->table_name.str, i == primary_key ? "primary" : table_share->key_info[i].name);
                    for (uint j = 0; j < num_key_parts; j++) 
                        TOKUDB_HANDLER_TRACE("%lu", rec_per_key[total_key_parts+j]);
                }
            }
            total_key_parts += num_key_parts;
        } 
    }
    if (result == HA_ADMIN_OK) {
        int error = tokudb::set_card_in_status(share->status_block, txn, total_key_parts, rec_per_key);
        if (error) 
            result = HA_ADMIN_FAILED;
    }
    TOKUDB_HANDLER_DBUG_RETURN(result);
}

static int hot_poll_fun(void *extra, float progress) {
    HOT_OPTIMIZE_CONTEXT context = (HOT_OPTIMIZE_CONTEXT)extra;
    if (context->thd->killed) {
        sprintf(context->write_status_msg, "The process has been killed, aborting hot optimize.");
        return ER_ABORTING_CONNECTION;
    }
    float percentage = progress * 100;
    sprintf(context->write_status_msg, "Optimization of index %u of %u about %.lf%% done", context->current_table + 1, context->num_tables, percentage);
    thd_proc_info(context->thd, context->write_status_msg);
#ifdef HA_TOKUDB_HAS_THD_PROGRESS
    if (context->progress_stage < context->current_table) {
        // the progress stage is behind the current table, so move up
        // to the next stage and set the progress stage to current.
        thd_progress_next_stage(context->thd);
        context->progress_stage = context->current_table;
    }
    // the percentage we report here is for the current stage/db
    thd_progress_report(context->thd, (unsigned long long) percentage, 100);
#endif
    return 0;
}

// flatten all DB's in this table, to do so, peform hot optimize on each db
int ha_tokudb::optimize(THD * thd, HA_CHECK_OPT * check_opt) {
    TOKUDB_HANDLER_DBUG_ENTER("%s", share->table_name);

    int error;
    uint curr_num_DBs = table->s->keys + tokudb_test(hidden_primary_key);

#ifdef HA_TOKUDB_HAS_THD_PROGRESS
    // each DB is its own stage. as HOT goes through each db, we'll
    // move on to the next stage.
    thd_progress_init(thd, curr_num_DBs);
#endif

    //
    // for each DB, run optimize and hot_optimize
    //
    for (uint i = 0; i < curr_num_DBs; i++) {
        DB* db = share->key_file[i];
        error = db->optimize(db);
        if (error) {
            goto cleanup;
        }
        struct hot_optimize_context hc;
        memset(&hc, 0, sizeof hc);
        hc.thd = thd;
        hc.write_status_msg = this->write_status_msg;
        hc.ha = this;
        hc.current_table = i;
        hc.num_tables = curr_num_DBs;
        uint64_t loops_run;
        error = db->hot_optimize(db, NULL, NULL, hot_poll_fun, &hc, &loops_run);
        if (error) {
            goto cleanup;
        }
    }

    error = 0;
cleanup:

#ifdef HA_TOKUDB_HAS_THD_PROGRESS
    thd_progress_end(thd);
#endif

    TOKUDB_HANDLER_DBUG_RETURN(error);
}

struct check_context {
    THD *thd;
};

static int ha_tokudb_check_progress(void *extra, float progress) {
    struct check_context *context = (struct check_context *) extra;
    int result = 0;
    if (context->thd->killed)
        result = ER_ABORTING_CONNECTION;
    return result;
}

static void ha_tokudb_check_info(THD *thd, TABLE *table, const char *msg) {
    if (thd->vio_ok()) {
        char tablename[256];
        snprintf(tablename, sizeof tablename, "%s.%s", table->s->db.str, table->s->table_name.str);
        thd->protocol->prepare_for_resend();
        thd->protocol->store(tablename, strlen(tablename), system_charset_info);
        thd->protocol->store("check", 5, system_charset_info);
        thd->protocol->store("info", 4, system_charset_info);
        thd->protocol->store(msg, strlen(msg), system_charset_info);
        thd->protocol->write();
    }
}

int ha_tokudb::check(THD *thd, HA_CHECK_OPT *check_opt) {
    TOKUDB_HANDLER_DBUG_ENTER("%s", share->table_name);

    const char *old_proc_info = tokudb_thd_get_proc_info(thd);
    thd_proc_info(thd, "tokudb::check");

    int result = HA_ADMIN_OK;
    int r;

    int keep_going = 1;
    if (check_opt->flags & T_QUICK) {
        keep_going = 0;
    }
    if (check_opt->flags & T_EXTEND) {
        keep_going = 1;
    }

    r = acquire_table_lock(transaction, lock_write);
    if (r != 0)
        result = HA_ADMIN_INTERNAL_ERROR;
    if (result == HA_ADMIN_OK) {
        uint32_t num_DBs = table_share->keys + tokudb_test(hidden_primary_key);
        snprintf(write_status_msg, sizeof write_status_msg, "%s primary=%d num=%d", share->table_name, primary_key, num_DBs);
        if (tokudb_debug & TOKUDB_DEBUG_CHECK) {
            ha_tokudb_check_info(thd, table, write_status_msg);
            time_t now = time(0);
            char timebuf[32];
            TOKUDB_HANDLER_TRACE("%.24s %s", ctime_r(&now, timebuf), write_status_msg);
        }
        for (uint i = 0; i < num_DBs; i++) {
            DB *db = share->key_file[i];
            const char *kname = i == primary_key ? "primary" : table_share->key_info[i].name;
            snprintf(write_status_msg, sizeof write_status_msg, "%s key=%s %u", share->table_name, kname, i);
            thd_proc_info(thd, write_status_msg);
            if (tokudb_debug & TOKUDB_DEBUG_CHECK) {
                ha_tokudb_check_info(thd, table, write_status_msg);
                time_t now = time(0);
                char timebuf[32];
                TOKUDB_HANDLER_TRACE("%.24s %s", ctime_r(&now, timebuf), write_status_msg);
            }
            struct check_context check_context = { thd };
            r = db->verify_with_progress(db, ha_tokudb_check_progress, &check_context, (tokudb_debug & TOKUDB_DEBUG_CHECK) != 0, keep_going);
            snprintf(write_status_msg, sizeof write_status_msg, "%s key=%s %u result=%d", share->table_name, kname, i, r);
            thd_proc_info(thd, write_status_msg);
            if (tokudb_debug & TOKUDB_DEBUG_CHECK) {
                ha_tokudb_check_info(thd, table, write_status_msg);
                time_t now = time(0);
                char timebuf[32];
                TOKUDB_HANDLER_TRACE("%.24s %s", ctime_r(&now, timebuf), write_status_msg);
            }
            if (result == HA_ADMIN_OK && r != 0) {
                result = HA_ADMIN_CORRUPT;
                if (!keep_going)
                    break;
            }
        }
    }
    thd_proc_info(thd, old_proc_info);
    TOKUDB_HANDLER_DBUG_RETURN(result);
}