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How to use db_type method in hypothesis

Best Python code snippet using hypothesis

CompMigrStat.py

Source:CompMigrStat.py

1import errno2import os3import re4import sqlite35import sys6sys.path.insert(0, "%s/work/mutant/ec2-tools/lib/util" % os.path.expanduser("~"))7import Cons8import Util9import Conf10def GetFnStat(fn0, fn1):11  conn = _GenDB(fn0, fn1)12  # https://docs.python.org/2/library/sqlite3.html#row-objects13  conn.row_factory = sqlite3.Row14  cur = conn.cursor()15  _OverallStat(cur, fn0, fn1)16  _HourlyStat(cur)17def _GenDB(fn0, fn1):18  with Cons.MT("Building a stat DB ..."):19    # Put the SSTable creation info in a DB and generate statistics20    fn_db = "%s/sst-creation-info.db" % Conf.GetOutDir()21    try:22      os.remove(fn_db)23    except OSError as e:24      if e.errno != errno.ENOENT:25        raise e26    table_schema = """ CREATE TABLE IF NOT EXISTS sst_creation_info (27                        fn text NOT NULL28                        , db_type text NOT NULL29                        , hour integer NOT NULL30                        , sst_id integer NOT NULL31                        , sst_size integer NOT NULL32                        , job_id integer NOT NULL33                        , creation_reason text NOT NULL34                        , temp_triggered_single_sst_migr BOOLEAN35                        , migr_dirc text NOT NULL36                      ); """37    conn = sqlite3.connect(fn_db)38    if conn is None:39      raise RuntimeError("Error! cannot create the database connection.")40    cur = conn.cursor()41    cur.execute(table_schema)42    q = """INSERT INTO sst_creation_info (fn, db_type, hour, sst_id, sst_size, job_id, creation_reason, temp_triggered_single_sst_migr, migr_dirc)43             VALUES (?,?,?,?,?,?,?,?,?)"""44    for db_type in ["RocksDB", "Mutant"]:45      fn = fn0 if db_type == "RocksDB" else fn146      with open(fn) as fo:47        for line in fo:48          if line.startswith("#"):49            continue50          line = line.strip()51          t = re.split(r" +", line)52          hour = int(t[1].split(":")[0])53          sst_id = t[6]54          # Ignore when end sst_id is -, which means an sstable was deleted.55          if sst_id == "-":56            continue57          sst_id = int(sst_id)58          sst_size = int(t[5])59          job_id = int(t[7])60          # Creation reason: R, F, C, -61          cr = t[8]62          temp_triggered_single_sst_migr = (t[9] == "T")63          migr_dirc = t[10]64          cur.execute(q, (fn, db_type, hour, sst_id, sst_size, job_id, cr, temp_triggered_single_sst_migr, migr_dirc))65    conn.commit()66    cur.close()67    return conn68def _OverallStat(cur, fn0, fn1):69  with Cons.MT("Overall stat ..."):70    for db_type in ["RocksDB", "Mutant"]:71      fn = fn0 if db_type == "RocksDB" else fn172      Cons.P("# %s" % db_type)73      Cons.P("#   fn=%s" % fn)74      cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE db_type='%s'" % db_type)75      r = cur.fetchone()76      Cons.P("#   num_jobs=%d" % r["cnt"])77      cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE db_type='%s' and creation_reason='R'" % db_type)78      Cons.P("#   num_jobs_recovery=%d" % cur.fetchone()["cnt"])79      cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE db_type='%s' and creation_reason='F'" % db_type)80      Cons.P("#   num_jobs_flush=%d" % cur.fetchone()["cnt"])81      cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE db_type='%s' and creation_reason='C'" % db_type)82      num_comp_jobs_all = cur.fetchone()["cnt"]83      Cons.P("#   num_jobs_comp_all=%d" % num_comp_jobs_all)84      cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info" \85          " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0"86          % db_type)87      num_jobs_comp_level_triggered = cur.fetchone()["cnt"]88      Cons.P("#   num_jobs_comp_level_triggered=%d" % num_jobs_comp_level_triggered)89      cur.execute("SELECT count(distinct(sst_id)) as cnt FROM sst_creation_info" \90          " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0"91          % db_type)92      num_outssts_comp_level_triggered = cur.fetchone()["cnt"]93      Cons.P("#     num_outssts_comp_level_triggered=%d" % num_outssts_comp_level_triggered)94      Cons.P("#     num_outssts_comp_level_triggered_per_job=%f" % (float(num_outssts_comp_level_triggered) / num_jobs_comp_level_triggered))95      # Distribution of the number of output SSTables per job96      cur.execute("SELECT job_id, count(distinct(sst_id)) as num_ssts FROM sst_creation_info" \97          " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0" \98          " GROUP BY job_id ORDER BY job_id"99          % db_type)100      numssts_cnt = {}101      for r in cur.fetchall():102        c = r["num_ssts"]103        if c not in numssts_cnt:104          numssts_cnt[c] = 1105        else:106          numssts_cnt[c] += 1107      Cons.P("#       %s" % numssts_cnt)108      cur.execute("SELECT count(distinct(sst_id)) as cnt FROM sst_creation_info" \109          " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('-', 'N')"110          % db_type)111      Cons.P("#     num_outssts_comp_level_triggered_regular_compaction=%d" % cur.fetchone()["cnt"])112      cur.execute("SELECT count(distinct(sst_id)) as cnt FROM sst_creation_info" \113          " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('S', 'F')"114          % db_type)115      Cons.P("#     num_outssts_comp_level_triggered_compaction_migration=%d" % cur.fetchone()["cnt"])116      if True:117        # From the SSTables created from compaction-migrations118        #   There are more SSTables that get migrated to the slow storage than to the fast storage. Makes sense, since they get old in general.119        cur.execute("SELECT count(distinct(sst_id)) as cnt FROM sst_creation_info" \120            " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('S')"121            % db_type)122        Cons.P("#     num_outssts_comp_level_triggered_compaction_migration_to_slow_storage=%d" % cur.fetchone()["cnt"])123        if False:124          cur.execute("SELECT job_id, count(distinct(sst_id)) as num_ssts FROM sst_creation_info" \125              " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('S')" \126              " GROUP BY job_id ORDER BY job_id"127              % db_type)128          for r in cur.fetchall():129            Cons.P("#       job_id=%d num_ssts=%d" % (r["job_id"], r["num_ssts"]))130        cur.execute("SELECT count(distinct(sst_id)) as cnt FROM sst_creation_info" \131            " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('F')"132            % db_type)133        Cons.P("#     num_outssts_comp_level_triggered_compaction_migration_to_fast_storage=%d" % cur.fetchone()["cnt"])134        if False:135          cur.execute("SELECT job_id, count(distinct(sst_id)) as num_ssts FROM sst_creation_info" \136              " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('F')" \137              " GROUP BY job_id ORDER BY job_id"138              % db_type)139          for r in cur.fetchall():140            Cons.P("#       job_id=%d num_ssts=%d" % (r["job_id"], r["num_ssts"]))141      cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info" \142          " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=1"143          % db_type)144      Cons.P("#   num_jobs_comp_temp_triggered_migr=%d" % cur.fetchone()["cnt"])145      if False:146        # With a temperature-triggered single-sstable migration, there is always a single input sstable, but there can be multiple output sstables.147        #   Interesting.148        #   All of those happened with a 256MB L0 SSTable in the fast storage becoming cold and being migrated to the slow storage,149        #     making 4 64MB L0 SSTables in the slow storage.150        #   I don't think there is any harm there. It's just the output file is splitted into 4 small ones.151        #   Count each of them as a single migration.152        cur.execute("SELECT count(distinct(sst_id)) as cnt FROM sst_creation_info" \153            " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=1"154            % db_type)155        Cons.P("#     num_outssts_comp_temp_triggered_migr=%d" % cur.fetchone()["cnt"])156        cur.execute("SELECT job_id, count(distinct(sst_id)) as num_ssts FROM sst_creation_info" \157            " WHERE db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=1" \158            " GROUP BY job_id ORDER BY job_id"159            % db_type)160        for r in cur.fetchall():161          if 1 < r["num_ssts"]:162            Cons.P("#       job_id=%d num_ssts=%d" % (r["job_id"], r["num_ssts"]))163def _HourlyStat(cur):164  with Cons.MT("Hourly stat ..."):165    Cons.P("# Left set of columns are for RocksDB, right one is for Mutant")166    Cons.P("# J: all jobs")167    Cons.P("# JR: recovery jobs")168    Cons.P("# JF: flush jobs")169    Cons.P("# JC: compaction jobs")170    Cons.P("#   JCL: compaction jobs. leveled organization triggered")171    Cons.P("#     SCL: sstables created. leveled organization triggered")172    Cons.P("#       SPJCL: sstables created / job. leveled organization triggered")173    Cons.P("#     SSCL: sum of the sstable sizes created. leveled organization triggered. In GB.")174    Cons.P("#     SCLR: sstables created. leveled organization triggered. regular compactions")175    Cons.P("#     SCLCM: sstables created. leveled organization triggered. compaction-migrations")176    Cons.P("#   JCT: compaction jobs. temperature-triggered single-sstable migration")177    Cons.P("#     SSCT: sum of the sstable sizes created. temperature-triggered single-sstable migration. In GB.")178    Cons.P("#")179    fmt = "%1d" \180        " %2d %1d %1d %2d %2d" \181          " %3d %5.3f %4.0f %3d %3d %2d %4.0f" \182        " %6d %1d %1d %3d %3d" \183          " %3d %5.3f %4.0f %3d %3d %3d %4.0f"184    Cons.P(Util.BuildHeader(fmt, "hour" \185        " J JR JF JC JCL" \186          " SCL SPJCL SSCL SCLR SCLCM JCT SSCT" \187        " J JR JF JC JCL" \188          " SCL SPJCL SSCL SCLR SCLCM JCT SSCT"189        ))190    for hour in range(10):191      j = {}192      j_r = {}193      j_f = {}194      j_c = {}195      j_c_l = {}196      s_c_l = {}197      spj_c_l = {}198      ss_c_l = {}199      s_c_l_r = {}200      s_c_l_cm = {}201      j_c_t = {}202      ss_c_t = {}203      for db_type in ["R", "M"]:204        db_type_str = "RocksDB" if db_type == "R" else "Mutant"205        cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE hour=%d and db_type='%s'" % (hour, db_type_str))206        j[db_type] = cur.fetchone()["cnt"]207        cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE hour=%d and db_type='%s' and creation_reason='R'" % (hour, db_type_str))208        j_r[db_type] = cur.fetchone()["cnt"]209        cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE hour=%d and db_type='%s' and creation_reason='F'" % (hour, db_type_str))210        j_f[db_type] = cur.fetchone()["cnt"]211        cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info WHERE hour=%d and db_type='%s' and creation_reason='C'" % (hour, db_type_str))212        j_c[db_type] = cur.fetchone()["cnt"]213        cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info" \214            " WHERE hour=%d and db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0"215            % (hour, db_type_str))216        j_c_l[db_type] = cur.fetchone()["cnt"]217        cur.execute("SELECT count(sst_id) as cnt FROM sst_creation_info" \218            " WHERE hour=%d and db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0"219            % (hour, db_type_str))220        s_c_l[db_type] = cur.fetchone()["cnt"]221        spj_c_l[db_type] = 0 if j_c_l[db_type] == 0 else (float(s_c_l[db_type]) / j_c_l[db_type])222        cur.execute("SELECT sum(sst_size) as v FROM sst_creation_info" \223            " WHERE hour=%d and db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0"224            % (hour, db_type_str))225        ss_c_l[db_type] = cur.fetchone()["v"]226        if ss_c_l[db_type] is None:227          ss_c_l[db_type] = 0228        ss_c_l[db_type] = float(ss_c_l[db_type]) / 1024 / 1024 / 1024229        cur.execute("SELECT count(sst_id) as cnt FROM sst_creation_info" \230            " WHERE hour=%d and db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('-', 'N')"231            % (hour, db_type_str))232        s_c_l_r[db_type] = cur.fetchone()["cnt"]233        cur.execute("SELECT count(sst_id) as cnt FROM sst_creation_info" \234            " WHERE hour=%d and db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=0 and migr_dirc IN ('S', 'F')"235            % (hour, db_type_str))236        s_c_l_cm[db_type] = cur.fetchone()["cnt"]237        cur.execute("SELECT count(distinct(job_id)) as cnt FROM sst_creation_info" \238            " WHERE hour=%d and db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=1"239            % (hour, db_type_str))240        j_c_t[db_type] = cur.fetchone()["cnt"]241        cur.execute("SELECT sum(sst_size) as v FROM sst_creation_info" \242            " WHERE hour=%d and db_type='%s' and creation_reason='C' and temp_triggered_single_sst_migr=1"243            % (hour, db_type_str))244        ss_c_t[db_type] = cur.fetchone()["v"]245        if ss_c_t[db_type] is None:246          ss_c_t[db_type] = 0247        ss_c_t[db_type] = float(ss_c_t[db_type]) / 1024 / 1024 / 1024248      Cons.P(fmt % (hour249        , j["R"], j_r["R"], j_f["R"], j_c["R"], j_c_l["R"]250          , s_c_l["R"], spj_c_l["R"], ss_c_l["R"], s_c_l_r["R"], s_c_l_cm["R"], j_c_t["R"], ss_c_t["R"]251        , j["M"], j_r["M"], j_f["M"], j_c["M"], j_c_l["M"]252          , s_c_l["M"], spj_c_l["M"], ss_c_l["M"], s_c_l_r["M"], s_c_l_cm["M"], j_c_t["M"], ss_c_t["M"]253        ))254  # TODO255#  fn_out = "%s/rocksdb-sst-creation-cnt-by-reasons-by-time" % Conf.GetOutDir()256#  with open(fn_out, "w") as fo:257#    fo.write("\n")258#  Cons.P("Created %s %d" % (fn_out, os.path.getsize(fn_out)))...

skeletons.py

Source:skeletons.py

1import peewee2import copy3__all__ = ["AdapterSkeleton", "DatabaseSkeleton"]4class AdapterSkeleton(object):5    def dispatch(self, db_type):6        if db_type == "sqlite" or db_type == "sqlite3":7            return peewee.SqliteAdapter8        elif db_type == "mysql":9            return peewee.MySQLAdapter10        elif db_type == "postgres" or db_type == "postgresql":11            return peewee.PostgresqlAdapter12        else:13            raise NotImplementedError("%s is not support. support: sqlite, mysql, postgresql" % db_type)14    def concrete(self, db_type):15        db_type = db_type.lower()16        return self.dispatch(db_type)() # return instance17    reserved_tables = [] #18class DatabaseSkeleton(peewee.Database): #TODO: add help message (when calling any method before concrete())19    def dispatch(self, db_type):20        if db_type == "sqlite" or db_type == "sqlite3":21            return peewee.SqliteDatabase22        elif db_type == "mysql":23            return peewee.MySQLDatabase24        elif db_type == "postgres" or db_type == "postgresql":25            return peewee.PostgresqlDatabase26        else:27            raise NotImplementedError("%s is not support. support: sqlite, mysql, postgresql" % db_type)28    def concrete(self, db_type, fields=None, _connect_kwargs=None):29        kwargs = copy.copy(self.connect_kwargs)30        if _connect_kwargs:31            kwargs.update(_connect_kwargs)32        dbclass = self.dispatch(db_type.lower())33        dbname = self.database34        if fields:35            return dbclass(dbname, fields=fields, **kwargs) #return instance36        return dbclass(dbname, **kwargs) #return instance37    def rename(self, new_name):38        self.database = new_name39    def __init__(self, database, **connect_kwargs):...

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