g.V().hasLabel('ZoneStep').has('id',0).repeat(__.out().simplePath()).until(__.hasLabel('ZoneStep').has('id',19)).count().next()<\/code><\/pre>\n<\/p>\n
\u0427\u0442\u043e \u043d\u0430 \u0440\u0443\u0441\u0441\u043a\u043e\u043c \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u0442\u0430\u043a: \u043d\u0430\u0439\u0434\u0438 ZoneStep \u0441 ID=0, \u0442\u043e\u043f\u0430\u0439 \u0431\u0435\u0437 \u0432\u043e\u0437\u0432\u0440\u0430\u0442\u0430 \u043d\u0430\u0437\u0430\u0434 \u043f\u043e\u043a\u0430 \u043d\u0435 \u043d\u0430\u0439\u0434\u0435\u0448\u044c ZoneStep \u0441 ID=19, \u043f\u043e\u0441\u0447\u0438\u0442\u0430\u0439 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u0442\u0430\u043a\u0438\u0445 \u0446\u0435\u043f\u043e\u0447\u0435\u043a.<\/p>\n
<\/p>\n
\u0421\u043a\u0440\u0438\u043f\u0442 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438, \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u044b\u0439 \u0432\u044b\u0448\u0435, \u044f \u0442\u043e\u0436\u0435 \u0443\u043f\u0440\u043e\u0441\u0442\u0438\u043b, \u0434\u043b\u044f \u0442\u043e\u0433\u043e, \u0447\u0442\u043e\u0431\u044b \u043d\u0435 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u043b\u0438\u0448\u043d\u0438\u0445 \u0441\u0432\u044f\u0437\u0435\u0439, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0448\u0438\u0441\u044c \u0430\u0442\u0440\u0438\u0431\u0443\u0442\u0430\u043c\u0438.<\/p>\n
<\/p>\n
\u0417\u0430\u043f\u0440\u043e\u0441 \u0432\u0441\u0435 \u0435\u0449\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u043b\u0441\u044f \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0441\u0435\u043a\u0443\u043d\u0434, \u0447\u0442\u043e \u0431\u044b\u043b\u043e \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u043d\u043e \u043d\u0435\u043f\u0440\u0438\u0435\u043c\u043b\u0435\u043c\u043e \u0434\u043b\u044f \u043d\u0430\u0448\u0435\u0439 \u0437\u0430\u0434\u0430\u0447\u0438, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u0434\u043b\u044f \u0446\u0435\u043b\u0435\u0439 AdHoc \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u043e\u0433\u043e \u0432\u0438\u0434\u0430 \u044d\u0442\u043e \u0441\u043e\u0432\u0441\u0435\u043c \u043d\u0435 \u043f\u043e\u0434\u0445\u043e\u0434\u0438\u043b\u043e.<\/p>\n
<\/p>\n
\u042f \u043f\u043e\u043f\u0440\u043e\u0431\u043e\u0432\u0430\u043b \u0440\u0430\u0437\u0432\u0435\u0440\u043d\u0443\u0442\u044c JanusGraph \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c Scylla, \u043a\u0430\u043a \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u0431\u044b\u0441\u0442\u0440\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 Cassandra, \u043d\u043e \u044d\u0442\u043e \u0442\u043e\u0436\u0435 \u043d\u0435 \u043f\u0440\u0438\u0432\u0435\u043b\u043e \u043a\u0430\u043a\u0438\u043c-\u0442\u043e \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f\u043c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438.<\/p>\n
<\/p>\n
\u0422\u0430\u043a\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c, \u043d\u0435\u0441\u043c\u043e\u0442\u0440\u044f \u043d\u0430 \u0442\u043e, \u0447\u0442\u043e "\u044d\u0442\u043e \u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u043a\u0430\u043a \u0433\u0440\u0430\u0444", \u043c\u043d\u0435 \u043d\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u0437\u0430\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0433\u0440\u0430\u0444\u043e\u0432\u0443\u044e \u0421\u0423\u0411\u0414 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u044d\u0442\u043e \u0431\u044b\u0441\u0442\u0440\u043e. \u0412\u043f\u043e\u043b\u043d\u0435 \u043f\u0440\u0435\u0434\u043f\u043e\u043b\u0430\u0433\u0430\u044e, \u0447\u0442\u043e \u044f \u0447\u0435\u0433\u043e-\u0442\u043e \u043d\u0435 \u0437\u043d\u0430\u044e \u0438 \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u0441\u0442\u0430\u0432\u0438\u0442\u044c JanusGraph \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u044d\u0442\u043e\u0442 \u043f\u043e\u0438\u0441\u043a \u0437\u0430 \u0434\u043e\u043b\u0438 \u0441\u0435\u043a\u0443\u043d\u0434\u044b, \u043e\u0434\u043d\u0430\u043a\u043e, \u043c\u043d\u0435 \u044d\u0442\u043e \u043d\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c. <\/p>\n
<\/p>\n
\u041f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u0440\u0435\u0448\u0438\u0442\u044c \u0437\u0430\u0434\u0430\u0447\u0443 \u0432\u0441\u0435 \u0440\u0430\u0432\u043d\u043e \u0431\u044b\u043b\u043e \u043d\u0443\u0436\u043d\u043e, \u044f \u043d\u0430\u0447\u0430\u043b \u0434\u0443\u043c\u0430\u0442\u044c \u043e JOIN-\u0430\u0445 \u0438 Pivot-\u0430\u0445 \u0442\u0430\u0431\u043b\u0438\u0446, \u0447\u0442\u043e \u043d\u0435 \u0432\u043d\u0443\u0448\u0430\u043b\u043e \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u043c\u0430 \u0441 \u0442\u043e\u0447\u043a\u0438 \u0437\u0440\u0435\u043d\u0438\u044f \u0438\u0437\u044f\u0449\u043d\u043e\u0441\u0442\u0438, \u043d\u043e \u043c\u043e\u0433\u043b\u043e \u0431\u044b\u0442\u044c \u0432\u043f\u043e\u043b\u043d\u0435 \u0440\u0430\u0431\u043e\u0447\u0438\u043c \u0432\u0430\u0440\u0438\u0430\u043d\u0442\u043e\u043c \u043d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435.<\/p>\n
<\/p>\n
\u0412 \u043d\u0430\u0448\u0435\u043c \u043f\u0440\u043e\u0435\u043a\u0442\u0435 \u0443\u0436\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f Apache ClickHouse, \u043f\u043e\u044d\u0442\u043e\u043c\u0443 \u044f \u0440\u0435\u0448\u0438\u043b \u043f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c \u0441\u0432\u043e\u0438 \u0438\u0437\u044b\u0441\u043a\u0430\u043d\u0438\u044f \u043d\u0430 \u044d\u0442\u043e\u0439 \u0430\u043d\u0430\u043b\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0421\u0423\u0411\u0414.<\/p>\n
<\/p>\n
\u0420\u0430\u0437\u0432\u0435\u0440\u043d\u0443\u043b ClickHouse \u043f\u043e \u043f\u0440\u043e\u0441\u0442\u043e\u043c\u0443 \u0440\u0435\u0446\u0435\u043f\u0442\u0443:<\/p>\n
<\/p>\n
sudo docker run -d --name clickhouse_1 \n --ulimit nofile=262144:262144 \n -v \/opt\/clickhouse\/log:\/var\/log\/clickhouse-server \n -v \/opt\/clickhouse\/data:\/var\/lib\/clickhouse \n yandex\/clickhouse-server<\/code><\/pre>\n<\/p>\n
\u0421\u043e\u0437\u0434\u0430\u043b \u0432 \u043d\u0435\u043c \u0411\u0414 \u0438 \u0442\u0430\u0431\u043b\u0438\u0446\u0443 \u0432\u0438\u0434\u0430:<\/p>\n
<\/p>\n
CREATE TABLE \ndb.steps (`area` Int64, `when` DateTime64(1, 'Europe\/Moscow') DEFAULT now64(), `zone` Int64, `person` Int64) \nENGINE = MergeTree() ORDER BY (area, zone, person) SETTINGS index_granularity = 8192<\/code><\/pre>\n<\/p>\n
\u0417\u0430\u043f\u043e\u043b\u043d\u0438\u043b \u0435\u0435 \u0434\u0430\u043d\u043d\u044b\u043c\u0438 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u0441\u043a\u0440\u0438\u043f\u0442\u043e\u043c:<\/p>\n
<\/p>\n
from time import time\n\nfrom clickhouse_driver import Client\nfrom random import random\n\nclient = Client('vm-12c2c34c-df68-4a98-b1e5-a4d1cef1acff.domain',\n database='db',\n password='secret')\n\nmax = 20\n\nfor r in range(0, 100000):\n\n if r % 1000 == 0:\n print("CNT: {}, TS: {}".format(r, time()))\n\n data = [{\n 'area': 0,\n 'zone': 0,\n 'person': r\n }]\n\n while True:\n if random() < 0.3:\n break\n\n data.append({\n 'area': 0,\n 'zone': int(random() * (max - 2)) + 1,\n 'person': r\n })\n\n data.append({\n 'area': 0,\n 'zone': max - 1,\n 'person': r\n })\n\n client.execute(\n 'INSERT INTO steps (area, zone, person) VALUES',\n data\n )<\/code><\/pre>\n<\/p>\n
\u041f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u0432\u0441\u0442\u0430\u0432\u043a\u0438 \u0438\u0434\u0443\u0442 \u0431\u0430\u0442\u0447\u0430\u043c\u0438, \u0437\u0430\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0431\u044b\u043b\u043e \u0433\u043e\u0440\u0430\u0437\u0434\u043e \u0431\u044b\u0441\u0442\u0440\u0435\u0435, \u0447\u0435\u043c \u0434\u043b\u044f JanusGraph.<\/p>\n
<\/p>\n
\u0421\u043a\u043e\u043d\u0441\u0442\u0440\u0443\u0438\u0440\u043e\u0432\u0430\u043b \u0434\u0432\u0430 \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e JOIN. \u0414\u043b\u044f \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0430 \u0438\u0437 \u0442\u043e\u0447\u043a\u0438 A \u0432 \u0442\u043e\u0447\u043a\u0443 \u0411:<\/p>\n
<\/p>\n
SELECT s1.person AS person,\n s1.zone,\n s1.when,\n s2.zone,\n s2.when\nFROM\n (SELECT *\n FROM steps\n WHERE (area = 0)\n AND (zone = 0)) AS s1 ANY INNER JOIN\n (SELECT *\n FROM steps AS s2\n WHERE (area = 0)\n AND (zone = 19)) AS s2 USING person\nWHERE s1.when <= s2.when<\/code><\/pre>\n<\/p>\n
\u0414\u043b\u044f \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0430 \u0447\u0435\u0440\u0435\u0437 3 \u0442\u043e\u0447\u043a\u0438:<\/p>\n
<\/p>\n
SELECT s3.person,\n s1z,\n s1w,\n s2z,\n s2w,\n s3.zone,\n s3.when\nFROM\n (SELECT s1.person AS person,\n s1.zone AS s1z,\n s1.when AS s1w,\n s2.zone AS s2z,\n s2.when AS s2w\n FROM\n (SELECT *\n FROM steps\n WHERE (area = 0)\n AND (zone = 0)) AS s1 ANY INNER JOIN\n (SELECT *\n FROM steps AS s2\n WHERE (area = 0)\n AND (zone = 3)) AS s2 USING person\n WHERE s1.when <= s2.when) p ANY INNER JOIN\n (SELECT *\n FROM steps\n WHERE (area = 0)\n AND (zone = 19)) AS s3 USING person\nWHERE p.s2w <= s3.when<\/code><\/pre>\n<\/p>\n
\u0417\u0430\u043f\u0440\u043e\u0441\u044b, \u043a\u043e\u043d\u0435\u0447\u043d\u043e, \u0432\u044b\u0433\u043b\u044f\u0434\u044f\u0442 \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u0441\u0442\u0440\u0430\u0448\u043d\u043e, \u0434\u043b\u044f \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0434\u0435\u043b\u0430\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u0443\u044e \u043e\u0431\u0432\u044f\u0437\u043a\u0443-\u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440. \u041e\u0434\u043d\u0430\u043a\u043e, \u043e\u043d\u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0442 \u0431\u044b\u0441\u0442\u0440\u043e. \u0418 \u043f\u0435\u0440\u0432\u044b\u0439 \u0438 \u0432\u0442\u043e\u0440\u043e\u0439 \u0437\u0430\u043f\u0440\u043e\u0441\u044b \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u044e\u0442\u0441\u044f \u043c\u0435\u043d\u0435\u0435 \u0447\u0435\u043c \u0437\u0430 0.1 \u0441\u0435\u043a. \u0412\u043e\u0442 \u043f\u0440\u0438\u043c\u0435\u0440 \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0438\u0441\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u0434\u043b\u044f count(*) \u043f\u0440\u043e\u0445\u043e\u0434\u0430 \u043f\u043e 3\u043c \u0442\u043e\u0447\u043a\u0430\u043c:<\/p>\n
<\/p>\n
SELECT count(*)\nFROM \n(\n SELECT \n s1.person AS person, \n s1.zone AS s1z, \n s1.when AS s1w, \n s2.zone AS s2z, \n s2.when AS s2w\n FROM \n (\n SELECT *\n FROM steps\n WHERE (area = 0) AND (zone = 0)\n ) AS s1\n ANY INNER JOIN \n (\n SELECT *\n FROM steps AS s2\n WHERE (area = 0) AND (zone = 3)\n ) AS s2 USING (person)\n WHERE s1.when <= s2.when\n) AS p\nANY INNER JOIN \n(\n SELECT *\n FROM steps\n WHERE (area = 0) AND (zone = 19)\n) AS s3 USING (person)\nWHERE p.s2w <= s3.when\n\n\u250c\u2500count()\u2500\u2510\n\u2502 11592 \u2502\n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/code><\/pre>\n<\/p>\n
1 rows in set. Elapsed: 0.068 sec. Processed 250.03 thousand rows, 8.00 MB (3.69 million rows\/s., 117.98 MB\/s.)<\/code><\/pre>\n<\/p>\n
\u0417\u0430\u043c\u0435\u0447\u0430\u043d\u0438\u0435 \u043f\u0440\u043e IOPS<\/strong>. \u041f\u0440\u0438 \u0437\u0430\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0438 \u0434\u0430\u043d\u043d\u044b\u0445, JanusGraph \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u043b \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u0432\u044b\u0441\u043e\u043a\u043e\u0435 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e IOPS (1000-1300 \u0434\u043b\u044f \u0447\u0435\u0442\u044b\u0440\u0435\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432 \u0437\u0430\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u043c\u0438), \u0430 IOWAIT \u0431\u044b\u043b \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u0432\u044b\u0441\u043e\u043a\u0438\u043c. \u0412 \u0442\u043e \u0436\u0435 \u0432\u0440\u0435\u043c\u044f, ClickHouse \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u043b \u043c\u0438\u043d\u0438\u043c\u0430\u043b\u044c\u043d\u0443\u044e \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u043d\u0430 \u0434\u0438\u0441\u043a\u043e\u0432\u0443\u044e \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u0443.<\/p>\n<\/p>\n
\u0417\u0430\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u0435<\/h2>\n
<\/p>\n
\u041c\u044b \u0440\u0435\u0448\u0438\u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c ClickHouse \u0434\u043b\u044f \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 \u044d\u0442\u043e\u0433\u043e \u0442\u0438\u043f\u0430. \u041c\u044b \u0432\u0441\u0435\u0433\u0434\u0430 \u043c\u043e\u0436\u0435\u043c \u0435\u0449\u0435 \u0431\u043e\u043b\u044c\u0448\u0435 \u043e\u043f\u0442\u0438\u043c\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0437\u0430\u043f\u0440\u043e\u0441\u044b, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0435 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438 \u043f\u0430\u0440\u0430\u043b\u043b\u0435\u043b\u0438\u0437\u0430\u0446\u0438\u044e, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u044f \u043f\u0440\u0435\u0434\u0432\u0430\u0440\u0438\u0442\u0435\u043b\u044c\u043d\u0443\u044e \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0443 \u043f\u043e\u0442\u043e\u043a\u0430 \u0441\u043e\u0431\u044b\u0442\u0438\u0439 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e Apache Flink \u043f\u0435\u0440\u0435\u0434 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u043e\u0439 \u0438\u0445 \u0432 ClickHouse. <\/p>\n
<\/p>\n
\u041f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043d\u0430\u0441\u0442\u043e\u043b\u044c\u043a\u043e \u0445\u043e\u0440\u043e\u0448\u0430, \u0447\u0442\u043e \u043d\u0430\u043c, \u0432\u0435\u0440\u043e\u044f\u0442\u043d\u043e, \u0434\u0430\u0436\u0435 \u043d\u0435 \u043f\u0440\u0438\u0434\u0435\u0442\u0441\u044f \u0434\u0443\u043c\u0430\u0442\u044c \u043e pivot-\u0430\u0445 \u0442\u0430\u0431\u043b\u0438\u0446 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u043c\u0438 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430\u043c\u0438. \u0420\u0430\u043d\u0435\u0435, \u043d\u0430\u043c \u043f\u0440\u0438\u0445\u043e\u0434\u0438\u043b\u043e\u0441\u044c \u0434\u0435\u043b\u0430\u0442\u044c pivot-\u044b \u0434\u0430\u043d\u043d\u044b\u0445, \u0438\u0437\u0432\u043b\u0435\u043a\u0430\u0435\u043c\u044b\u0445 \u0438\u0437 Vertica \u0447\u0435\u0440\u0435\u0437 \u0432\u044b\u0433\u0440\u0443\u0437\u043a\u0443 \u0432 Apache Parquet.<\/p>\n
<\/p>\n
\u041a \u0441\u043e\u0436\u0430\u043b\u0435\u043d\u0438\u044e, \u043e\u0447\u0435\u0440\u0435\u0434\u043d\u0430\u044f \u043f\u043e\u043f\u044b\u0442\u043a\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0433\u0440\u0430\u0444\u043e\u0432\u043e\u0439 \u0421\u0423\u0411\u0414 \u043d\u0435 \u0443\u0432\u0435\u043d\u0447\u0430\u043b\u0430\u0441\u044c \u0443\u0441\u043f\u0435\u0445\u043e\u043c. \u042f \u043d\u0435 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b, \u0447\u0442\u043e \u0443 JanusGraph \u0434\u0440\u0443\u0436\u0435\u043b\u044e\u0431\u043d\u0430\u044f \u044d\u043a\u043e\u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0431\u044b\u0441\u0442\u0440\u043e \u043e\u0441\u0432\u043e\u0438\u0442\u044c\u0441\u044f \u0441 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u043c. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0434\u043b\u044f \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0442\u0440\u0430\u0434\u0438\u0446\u0438\u043e\u043d\u043d\u044b\u0439 Java-way, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043b\u044e\u0434\u0435\u0439 \u0441 Java \u043d\u0435 \u0437\u043d\u0430\u043a\u043e\u043c\u044b\u0445 \u0437\u0430\u0441\u0442\u0430\u0432\u0438\u0442 \u043f\u043b\u0430\u043a\u0430\u0442\u044c \u043a\u0440\u043e\u0432\u0430\u0432\u044b\u043c\u0438 \u0441\u043b\u0435\u0437\u0430\u043c\u0438:<\/p>\n
<\/p>\n
host: 0.0.0.0\nport: 8182\nthreadPoolWorker: 1\ngremlinPool: 8\nscriptEvaluationTimeout: 30000\nchannelizer: org.janusgraph.channelizers.JanusGraphWsAndHttpChannelizer\n\ngraphManager: org.janusgraph.graphdb.management.JanusGraphManager\ngraphs: {\n ConfigurationManagementGraph: conf\/janusgraph-cql-configurationgraph.properties,\n airlines: conf\/airlines.properties\n}\n\nscriptEngines: {\n gremlin-groovy: {\n plugins: { org.janusgraph.graphdb.tinkerpop.plugin.JanusGraphGremlinPlugin: {},\n org.apache.tinkerpop.gremlin.server.jsr223.GremlinServerGremlinPlugin: {},\n org.apache.tinkerpop.gremlin.tinkergraph.jsr223.TinkerGraphGremlinPlugin: {},\n org.apache.tinkerpop.gremlin.jsr223.ImportGremlinPlugin: {classImports: [java.lang.Math], methodImports: [java.lang.Math#*]},\n org.apache.tinkerpop.gremlin.jsr223.ScriptFileGremlinPlugin: {files: [scripts\/airline-sample.groovy]}}}}\n\nserializers:\n# GraphBinary is here to replace Gryo and Graphson\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1, config: { serializeResultToString: true }}\n # Gryo and Graphson, latest versions\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { serializeResultToString: true }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV3d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}\n # Older serialization versions for backwards compatibility:\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { serializeResultToString: true }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoLiteMessageSerializerV1d0, config: {ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV2d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistryV1d0] }}\n - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistryV1d0] }}\n\nprocessors:\n - { className: org.apache.tinkerpop.gremlin.server.op.session.SessionOpProcessor, config: { sessionTimeout: 28800000 }}\n - { className: org.apache.tinkerpop.gremlin.server.op.traversal.TraversalOpProcessor, config: { cacheExpirationTime: 600000, cacheMaxSize: 1000 }}\n\nmetrics: {\n consoleReporter: {enabled: false, interval: 180000},\n csvReporter: {enabled: false, interval: 180000, fileName: \/tmp\/gremlin-server-metrics.csv},\n jmxReporter: {enabled: false},\n slf4jReporter: {enabled: true, interval: 180000},\n gangliaReporter: {enabled: false, interval: 180000, addressingMode: MULTICAST},\n graphiteReporter: {enabled: false, interval: 180000}}\nthreadPoolBoss: 1\nmaxInitialLineLength: 4096\nmaxHeaderSize: 8192\nmaxChunkSize: 8192\nmaxContentLength: 65536\nmaxAccumulationBufferComponents: 1024\nresultIterationBatchSize: 64\nwriteBufferHighWaterMark: 32768\nwriteBufferHighWaterMark: 65536\nssl: {\n enabled: false}<\/code><\/pre>\n<\/p>\n
\u041c\u043d\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u043e "\u043f\u043e\u043b\u043e\u0436\u0438\u0442\u044c" BerkeleyDB \u0432\u0435\u0440\u0441\u0438\u044e JanusGraph. <\/p>\n
<\/p>\n
\u0414\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u044f \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u043a\u0440\u0438\u0432\u0430\u044f \u0432 \u0447\u0430\u0441\u0442\u0438 \u0438\u043d\u0434\u0435\u043a\u0441\u043e\u0432, \u043f\u043e\u0441\u043a\u043e\u043b\u044c\u043a\u0443 \u043f\u0440\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0438 \u0438\u043d\u0434\u0435\u043a\u0441\u0430\u043c\u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u0434\u043e\u0432\u043e\u043b\u044c\u043d\u043e \u0441\u0442\u0440\u0430\u043d\u043d\u044b\u0435 \u0448\u0430\u043c\u0430\u043d\u0441\u0442\u0432\u0430 \u043d\u0430 Groovy. \u041d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0438\u043d\u0434\u0435\u043a\u0441\u0430 \u0434\u043e\u043b\u0436\u043d\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u044c\u0441\u044f \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0438\u044f \u043a\u043e\u0434\u0430 \u0432 \u043a\u043e\u043d\u0441\u043e\u043b\u0438 Gremlin (\u043a\u043e\u0442\u043e\u0440\u043e\u0435, \u043a\u0441\u0442\u0430\u0442\u0438, \u043d\u0435 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0438\u0437 \u043a\u043e\u0440\u043e\u0431\u043a\u0438). \u0418\u0437 \u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0439 \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0438 JanusGraph:<\/p>\n
<\/p>\n
graph.tx().rollback() \/\/Never create new indexes while a transaction is active\nmgmt = graph.openManagement()\nname = mgmt.getPropertyKey('name')\nage = mgmt.getPropertyKey('age')\nmgmt.buildIndex('byNameComposite', Vertex.class).addKey(name).buildCompositeIndex()\nmgmt.buildIndex('byNameAndAgeComposite', Vertex.class).addKey(name).addKey(age).buildCompositeIndex()\nmgmt.commit()\n\n\/\/Wait for the index to become available\nManagementSystem.awaitGraphIndexStatus(graph, 'byNameComposite').call()\nManagementSystem.awaitGraphIndexStatus(graph, 'byNameAndAgeComposite').call()\n\/\/Reindex the existing data\nmgmt = graph.openManagement()\nmgmt.updateIndex(mgmt.getGraphIndex("byNameComposite"), SchemaAction.REINDEX).get()\nmgmt.updateIndex(mgmt.getGraphIndex("byNameAndAgeComposite"), SchemaAction.REINDEX).get()\nmgmt.commit()<\/code><\/pre>\n<\/p>\n
\u041f\u043e\u0441\u043b\u0435\u0441\u043b\u043e\u0432\u0438\u0435<\/h2>\n
<\/p>\n
\u0412 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0441\u043c\u044b\u0441\u043b\u0435 \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u044b\u0439 \u0432\u044b\u0448\u0435 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442 \u2014 \u044d\u0442\u043e \u0441\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 \u0442\u0435\u043f\u043b\u043e\u0433\u043e \u0441 \u043c\u044f\u0433\u043a\u0438\u043c. \u0415\u0441\u043b\u0438 \u0432\u0434\u0443\u043c\u0430\u0442\u044c\u0441\u044f, \u0442\u043e \u0433\u0440\u0430\u0444\u043e\u0432\u0430\u044f \u0421\u0423\u0411\u0414 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u0442 \u0434\u0440\u0443\u0433\u0438\u0435 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u0434\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0442\u0435\u0445 \u0436\u0435 \u0441\u0430\u043c\u044b\u0445 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u0432. \u041e\u0434\u043d\u0430\u043a\u043e, \u0432 \u0440\u0430\u043c\u043a\u0430\u0445 \u0442\u0435\u0441\u0442\u043e\u0432 \u044f \u043f\u0440\u043e\u0432\u043e\u0434\u0438\u043b \u0438 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442 \u0441 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u043c \u0432\u0438\u0434\u0430:<\/p>\n
<\/p>\n
g.V().hasLabel('ZoneStep').has('id',0)\n .repeat(__.out().simplePath()).until(__.hasLabel('ZoneStep').has('id',1)).count().next()<\/code><\/pre>\n<\/p>\n
\u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0442\u0440\u0430\u0436\u0430\u0435\u0442 \u0448\u0430\u0433\u043e\u0432\u0443\u044e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c. \u041e\u0434\u043d\u0430\u043a\u043e \u0438 \u043d\u0430 \u0442\u0430\u043a\u0438\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0433\u0440\u0430\u0444\u043e\u0432\u0430\u044f \u0421\u0423\u0411\u0414 \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u043b\u0430 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u044b\u0445\u043e\u0434\u0438\u043b \u0437\u0430 \u043f\u0440\u0435\u0434\u0435\u043b\u044b \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u0441\u0435\u043a\u0443\u043d\u0434\u2026 \u042d\u0442\u043e, \u043a\u043e\u043d\u0435\u0447\u043d\u043e, \u0436\u0435 \u0441\u0432\u044f\u0437\u0430\u043d\u043e \u0441 \u0442\u0435\u043c, \u0447\u0442\u043e \u0431\u044b\u043b\u0438 \u043f\u0443\u0442\u0438 \u0432\u0438\u0434\u0430 0 -> X -> Y ... -> 1<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0433\u0440\u0430\u0444\u043e\u0432\u044b\u0439 \u0434\u0432\u0438\u0436\u043e\u043a \u0442\u043e\u0436\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u043b. <\/p>\n<\/p>\n
\u0414\u0430\u0436\u0435 \u0434\u043b\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u0430 \u0432\u0438\u0434\u0430:<\/p>\n
<\/p>\n
g.V().hasLabel('ZoneStep').has('id',0).out().has('id',1)).count().next()<\/code><\/pre>\n<\/p>\n
\u043c\u043d\u0435 \u043d\u0435 \u0443\u0434\u0430\u043b\u043e\u0441\u044c \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u043e\u0442\u0432\u0435\u0442 \u0441 \u0432\u0440\u0435\u043c\u0435\u043d\u0435\u043c \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043c\u0435\u043d\u044c\u0448\u0435 \u0441\u0435\u043a\u0443\u043d\u0434\u044b.<\/p>\n
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