{"id":50739,"date":"2021-08-20T00:00:00","date_gmt":"2021-08-20T07:00:00","guid":{"rendered":"https:\/\/griddb-linux-hte8hndjf8cka8ht.westus-01.azurewebsites.net\/%e6%9c%aa%e5%88%86%e9%a1%9e\/using-griddb-as-a-source-for-kafka-with-jdbc\/"},"modified":"2025-11-14T07:54:33","modified_gmt":"2025-11-14T15:54:33","slug":"using-griddb-as-a-source-for-kafka-with-jdbc","status":"publish","type":"post","link":"https:\/\/griddb.net\/ja\/%e6%9c%aa%e5%88%86%e9%a1%9e\/using-griddb-as-a-source-for-kafka-with-jdbc\/","title":{"rendered":"JDBC\u3067Kafka\u306e\u30bd\u30fc\u30b9\u3068\u3057\u3066GridDB\u3092\u4f7f\u7528\u3059\u308b"},"content":{"rendered":"

\u6628\u5e74\u3001\u79c1\u305f\u3061\u306fGridDB\u3068Kafka\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u8fbc\u3080\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306e\u30ac\u30a4\u30c9\u30fb\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/a>\u3092\u30ea\u30ea\u30fc\u30b9\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001CSV\u304b\u3089\u30b3\u30f3\u30bd\u30fc\u30eb\u30fb\u30d7\u30ed\u30c7\u30e5\u30fc\u30b5\u30fc\u306b\u30c7\u30fc\u30bf\u3092\u5165\u529b\u3057\u3001Kafka\u3092\u7d4c\u7531\u3057\u3066\u3001GridDB\u306eJDBC Sink<\/em>\u3092\u7d4c\u7531\u3057\u3066\u3001GridDB\u81ea\u4f53\u306b\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u8fbc\u3080\u30d7\u30ed\u30bb\u30b9\u3092\u958b\u767a\u8005\u5411\u3051\u306b\u8aac\u660e\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u4eca\u56de\u306e\u30d6\u30ed\u30b0\u3067\u306f\u3001JDBC Kafka \u30b3\u30cd\u30af\u30bf<\/a>\u306e\u65b0\u3057\u3044\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u305f\u3081\u3001\u9006\u306e\u624b\u9806\u3067\u9032\u3081\u3066\u3044\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001GridDB JDBC Source<\/em>\u3092\u4f7f\u7528\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3042\u308bGridDB\u304b\u3089Kafka\u3092\u7d4c\u7531\u3057\u3066\u3001\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30fc\uff08\u307e\u305f\u306f\u4ed6\u306eKafka Sink\u30d7\u30e9\u30b0\u30a4\u30f3\uff09\u306b\u30c7\u30fc\u30bf\u3092\u79fb\u52d5\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u5b9f\u6f14\u3059\u308b\u305f\u3081\u306b\u3001\u6700\u65b0\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30ebSimulating IoT Data with Go<\/a>\u3067\u7d39\u4ecb\u3057\u305f go<\/code>\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u306f\u3001IoT\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u30fb\u771f\u4f3c\u3059\u308b\u305f\u3081\u306b\u3001\u5927\u91cf\u306e\u751f\u6210\u30fb\u30e9\u30f3\u30c0\u30e0\u306a\u30c7\u30fc\u30bf\u3092\u633f\u5165\u3059\u308b\u30b7\u30f3\u30d7\u30eb\u306a\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u6210\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3092\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\uff08\u76ee\u7684\u306f\u3001\u7d20\u65e9\u304f\u3066\u96d1\u306aIoT\u306e\u6982\u5ff5\u5b9f\u8a3c\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u3059\uff09\u3002<\/p>\n

\u57fa\u672c\u7684\u306a\u6d41\u308c\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002go<\/code>\u30b9\u30af\u30ea\u30d7\u30c8\u3067GridDB\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u307f\u3001\u305d\u308c\u3092source<\/em>\u30b3\u30cd\u30af\u30bf\u3067\u8aad\u307f\u8fbc\u307f\u3001Kafka\u306b\u6295\u5165\u3057\u3001\u6700\u7d42\u7684\u306b\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u51fa\u529b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 \"\"<\/a><\/p>\n

\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>\n

\u3053\u308c\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u624b\u9806\u306e\u5927\u90e8\u5206\u306f\u3001\u57fa\u672c\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/a>\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u57fa\u672c\u7684\u306b\u306f\u3001Kafka\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3068\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3001zookeeper\u30b5\u30fc\u30d0\u30fc\u306e\u5b9f\u884c\u3001\u305d\u3057\u3066Kafka\u30b5\u30fc\u30d0\u30fc\u306e\u5b9f\u884c\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u3053\u304b\u3089\u3001Kafka-Connect-JDBC-GridDB<\/a>\u30b3\u30cd\u30af\u30bf\u3092 Git Repo \u304b\u3089 mvn package<\/code> \u3067\u30d3\u30eb\u30c9\u3057\u307e\u3059\u3002<\/p>\n

.jar<\/code>\u30d5\u30a1\u30a4\u30eb\u3092\u30d3\u30eb\u30c9\u3057\u305f\u3089\u3001kafka\/libs<\/code>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306bcp<\/code>\u3057\u307e\u3059\u3002\u307e\u305f\u3001 GridDB JDBC \u30c9\u30e9\u30a4\u30d0\u30fc<\/a> .jar<\/code> \u3082\u540c\u69d8\u306b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u914d\u7f6e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u3053\u304b\u3089\u306f\u3001\u57fa\u672c\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u5185\u5bb9\u304b\u3089\u9032\u3093\u3067\u65b0\u3057\u3044\u9818\u57df\u306e\u8aac\u660e\u306b\u5165\u308a\u307e\u3059\u3002<\/p>\n

GridDB\u30bd\u30fc\u30b9\u30b3\u30cd\u30af\u30bf\u306e\u8a2d\u5b9a<\/h3>\n

\u6b21\u306b\u3001GridDB \u30b7\u30f3\u30af\u30b3\u30cd\u30af\u30bf\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u69cb\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u30d5\u30a1\u30a4\u30eb\u3067\u306f\u3001Kafka \u30b5\u30fc\u30d0\u30fc\u304c GridDB \u30b5\u30fc\u30d0\u30fc\u3068\u901a\u4fe1\u3059\u308b\u305f\u3081\u306e\u8a8d\u8a3c\u60c5\u5831\u3092\u4e0e\u3048\u308b\u305f\u3081\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u63a5\u7d9a\u60c5\u5831\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002GridDB\u3092\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u3053\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u305d\u306e\u307e\u307e\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

config\/connect-jdbc.properties<\/code>\u30d5\u30a1\u30a4\u30eb\u306b\u3001\u6b21\u306e\u3088\u3046\u306b\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n

\n
bootstrap.servers=localhost:9092\nname=griddb-sources\nconnector.class=io.confluent.connect.jdbc.JdbcSourceConnector\ntasks.max=1\nkey.converter.schemas.enable=true\nvalue.converter.schemas.enable=true\nbatch.size=1\nmode=bulk\n\ntopic.prefix=gridstore-02-\ntable.whitelist=\"kafkaBlog\"\n\nconnection.url=jdbc:gs:\/\/239.0.0.1:41999\/defaultCluster\/public\nconnection.user=admin\nconnection.password=admin\nauto.create=true\n\ntransforms=TimestampConverter\ntransforms.TimestampConverter.type=org.apache.kafka.connect.transforms.TimestampConverter$Value\ntransforms.TimestampConverter.format=yyyy-MM-dd hh:mm:ss\ntransforms.TimestampConverter.field=datetime\ntransforms.TimestampConverter.target.type=Timestamp<\/code><\/pre>\n<\/div>\n
\u57fa\u672c\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3068\u306e\u4e3b\u306a\u9055\u3044\u306f\u3001\u30b3\u30cd\u30af\u30bf\u30af\u30e9\u30b9\u304c\u5909\u66f4\u3055\u308c\u305f\u3053\u3068\u3068\u3001table.whitelist\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u8ffd\u52a0\u3055\u308c\u305f\u3053\u3068\u3067\u3059\u3002\u4eca\u56de\u306e\u30c7\u30e2\u3067\u306f\u3001Kafka\u30c8\u30d4\u30c3\u30af\u5168\u4f53\u3092\u69cb\u6210\u3059\u308b\u5358\u4e00\u306eGridDB\u30b3\u30f3\u30c6\u30ca\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u4f7f\u3044\u65b9<\/h2>\n
\u30c7\u30fc\u30bf\u30bd\u30fc\u30b9\u3068\u3057\u3066\u306eGridDB<\/h3>\n
\u30c7\u30fc\u30bf\u306e\u633f\u5165<\/h4>\n
\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u5024\u3092GridDB\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u633f\u5165\u3059\u308bgo<\/code> \u30b9\u30af\u30ea\u30d7\u30c8\u30fb\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb<\/a>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3067\u306f\u3001\u3082\u3046\u5c11\u3057\u8a73\u3057\u304f\u8aac\u660e\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u57fa\u672c\u7684\u306b\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f7f\u3046\u3068\u3001\u958b\u767a\u8005\u306f\u3001N\u500b\u306e\u30bb\u30f3\u30b5\u30fc\u3092\u4f7f\u3063\u3066X\u56de\u306b\u308f\u305f\u3063\u3066\u300c\u751f\u6210\u3055\u308c\u305f\u300dIoT<\/code>\u30c7\u30fc\u30bf\u3092GridDB\u30b5\u30fc\u30d0\u30fc\u306b\u633f\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002IoT\u30d9\u30fc\u30b9\u306e\u30c7\u30fc\u30bf\u3067\u3042\u308b\u305f\u3081\u3001\u300c\u30bb\u30f3\u30b5\u30fc\u300d\u304b\u3089\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u306fTime Series container<\/code>\u306b\u633f\u5165\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001<\/p>\n
\n
$ go run singlePut.go 24 5<\/code><\/pre>\n<\/div>\n
\u6700\u521d\u306e\u6570\u5b57\u306f\u3001\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3046\u7dcf\u6642\u9593\u6570\u3067\u30012\u756a\u76ee\u306e\u6570\u5b57\u306f\u3001\u300c\u51fa\u529b\u300d\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u5897\u5206\u3067\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u306fcurrent time<\/code>\u304b\u308924\u6642\u9593\u5f8c\u307e\u3067\u306e\u30c7\u30fc\u30bf\u3092\u30015\u5206\u3054\u3068\u306b\u751f\u6210\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306715\u500b\u306e\u30bb\u30f3\u30b5\u30fc\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u306e\u6642\u70b9\u3067\u540c\u3058\u30b3\u30f3\u30c6\u30ca\u306b\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u3082\u3057\u540c\u69d8\u306b\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001singlePut.go<\/code> \u30b9\u30af\u30ea\u30d7\u30c8\u3092\u5909\u66f4\u3057\u3066\u3001\u30b3\u30f3\u30c6\u30ca\u540d\u3092\u597d\u304d\u306a\u3082\u306e\u306b\u66f4\u65b0\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b3\u30f3\u30c6\u30ca\u540d\u304c jdbc.properties<\/code> \u30d5\u30a1\u30a4\u30eb\u3067\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30c6\u30fc\u30d6\u30eb\u3068\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u3001kafkaBlog<\/code>\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\n
containerName := \"kafkaBlog\"\nconInfo, err := griddb_go.CreateContainerInfo(map[string]interface{} {\n    \"name\": containerName,\n    \"column_info_list\":[][]interface{}{\n        {\"timestamp\", griddb_go.TYPE_TIMESTAMP},\n        {\"id\", griddb_go.TYPE_SHORT},\n        {\"data\", griddb_go.TYPE_FLOAT},\n        {\"temperature\", griddb_go.TYPE_FLOAT}},\n    \"type\": griddb_go.CONTAINER_TIME_SERIES,\n    \"row_key\": true})\nif (err != nil) {\n    fmt.Println(\"Create containerInfo failed, err:\", err)\n    panic(\"err CreateContainerInfo\")\n}\ndefer griddb_go.DeleteContainerInfo(conInfo)<\/code><\/pre>\n<\/div>\n
\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u6b8b\u308a\u306e\u90e8\u5206\u3067\u306f\u3001\u3044\u304f\u3064\u304b\u306efor loops<\/code>\u3092\u4f7f\u3063\u3066\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u751f\u6210\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n
\n
for i := 0; i < int(arrLen); i++ {\n\n    innerLen := numSensors\n    fullData[0][i] = make([]interface{}, innerLen)\n    times[i] = make([]time.Time, innerLen)\n    id[i] = make([]int, innerLen)\n    data[i] = make([]float64, innerLen)\n    temp[i] = make([]float64, innerLen)\n\n    var rowList []interface{}\n\n    \/\/ iterates through each sensor (ie. will emit data N amount of times )\n    for j := 0; j < innerLen; j++ {\n        addedTime := i * minutes\n        timeToAdd := time.Minute * time.Duration(addedTime)\n        incTime :=  now.Add(timeToAdd)\n        \n        times[i][j] = incTime\n        id[i][j] = j\n        data[i][j] = (r1.Float64() * 100) + numSensors \/\/ using the random seed\n        x := (r1.Float64() * 100) + 2  \n        temp[i][j] = math.Floor(x*100) \/ 100 \/\/ temp should only go 2 decimal places\n\n        var row []interface{}\n        row = append(row, times[i][j])\n        row = append(row, id[i][j])\n        row = append(row, data[i][j])\n        row = append(row, temp[i][j])\n        rowList = append(rowList, row)\n        \/\/ fmt.Println(\"fullData: \", fullData[0][i][j])\n    }\n    fullData[0][i] = rowList\n}<\/code><\/pre>\n<\/div>\n
\u30bd\u30fc\u30b9\u30b3\u30cd\u30af\u30bf\u306e\u4f7f\u7528<\/h4>\n
\u4ee5\u4e0a\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u30bd\u30fc\u30b9\u30b3\u30cd\u30af\u30bf<\/code>\u3092\u4f7f\u3063\u3066\u30c6\u30fc\u30d6\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u3001\u30c7\u30fc\u30bf\u3092Kafka\u306b\u9001\u308a\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3067\u306f\u3001\u30bd\u30fc\u30b9\u30b3\u30cd\u30af\u30bf\u3092\u5b9f\u884c\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
kafka\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304b\u3089\u3001\u4ee5\u4e0b\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n
\n
$ .\/bin\/connect-standalone.sh config\/connect-standalone.properties config\/connect-jdbc.properties<\/code><\/pre>\n<\/div>\n
\u3053\u308c\u3067\u30b3\u30cd\u30af\u30bf\u304c\u8d77\u52d5\u3057\u3001\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30c6\u30fc\u30d6\u30eb\u306e\u691c\u7d22\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n
[2021-08-14 01:04:08,047] WARN No tasks will be run because no tables were found (io.confluent.connect.jdbc.JdbcSourceConnector:150)<\/code><\/p>\n
\u3057\u304b\u3057\u3001\u305d\u306e\u30c7\u30fc\u30bf\u304c\u5165\u529b\u3055\u308c\u308b\u3068\u3001\u30b3\u30cd\u30af\u30bf\u30fc\u306e\u51fa\u529b\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n
\n
[2021-08-14 01:05:18,149] INFO WorkerSourceTask{id=griddb-sources-0} flushing 0 outstanding messages for offset commit (org.apache.kafka.connect.runtime.WorkerSourceTask:487)\n[2021-08-14 01:05:18,156] INFO Started JDBC source task (io.confluent.connect.jdbc.source.JdbcSourceTask:257)\n[2021-08-14 01:05:18,156] INFO WorkerSourceTask{id=griddb-sources-0} Source task finished initialization and start (org.apache.kafka.connect.runtime.WorkerSourceTask:225)\n[2021-08-14 01:05:18,157] INFO Begin using SQL query: SELECT * FROM \"kafkaBlog\" (io.confluent.connect.jdbc.source.TableQuerier:164)<\/code><\/pre>\n<\/div>\n
\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u63a5\u7d9a\u3055\u308c\u3001Kafka\u306b\u30b9\u30c8\u30ea\u30fc\u30e0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n
Kafka\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8aad\u3080<\/h3>\n
\u3053\u308c\u3067\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u3067Kafka\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6b21\u306e\u3088\u3046\u306b\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\n
$ bin\/kafka-console-consumer.sh --topic gridstore-03-kafkaBlog --from-beginning --bootstrap-server localhost:9092<\/code><\/pre>\n<\/div>\n
\u30b3\u30f3\u30c6\u30ca\u306e\u5185\u5bb9\u3092Kafka\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u3057\u3066\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n
\n
{\"schema\":{\"type\":\"struct\",\"fields\":[{\"type\":\"int64\",\"optional\":false,\"name\":\"org.apache.kafka.connect.data.Timestamp\",\"version\":1,\"field\":\"timestamp\"},{\"type\":\"int32\",\"optional\":true,\"field\":\"id\"},{\"type\":\"double\",\"optional\":true,\"field\":\"data\"},{\"type\":\"double\",\"optional\":true,\"field\":\"temperature\"}],\"optional\":false,\"name\":\"kafkaBlog\"},\"payload\":{\"timestamp\":1628903073145,\"id\":4,\"data\":9.307559967041016,\"temperature\":38.70000076293945}}\n{\"schema\":{\"type\":\"struct\",\"fields\":[{\"type\":\"int64\",\"optional\":false,\"name\":\"org.apache.kafka.connect.data.Timestamp\",\"version\":1,\"field\":\"timestamp\"},{\"type\":\"int32\",\"optional\":true,\"field\":\"id\"},{\"type\":\"double\",\"optional\":true,\"field\":\"data\"},{\"type\":\"double\",\"optional\":true,\"field\":\"temperature\"}],\"optional\":false,\"name\":\"kafkaBlog\"},\"payload\":{\"timestamp\":1628903373145,\"id\":3,\"data\":35.1313591003418,\"temperature\":79.73999786376953}}\nProcessed a total of 2 messages<\/code><\/pre>\n<\/div>\n
\u307e\u3068\u3081<\/h2>\n
\u3053\u308c\u3067\u3001GridDB\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092Kafka Source Connector\u3068\u3057\u3066\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u3001\u305c\u3072\u4ed6\u306eSink\u30b3\u30cd\u30af\u30bf\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001Kafka HTTP Sink \u30b3\u30cd\u30af\u30bf<\/a>\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u3092HTTP\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u3092\u4efb\u610f\u306eslack\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u9001\u4fe1\u3057\u3066\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3059\u306a\u3069\u3001\u69d8\u3005\u306a\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
Twitter \u30b3\u30cd\u30af\u30bf<\/a>\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u4f7f\u3063\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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[…]<\/p>\n","protected":false},"author":1,"featured_media":50230,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1005],"tags":[],"class_list":["post-50739","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1005"],"acf":[],"yoast_head":"\nJDBC\u3067Kafka\u306e\u30bd\u30fc\u30b9\u3068\u3057\u3066GridDB\u3092\u4f7f\u7528\u3059\u308b | GridDB: Open Source Time Series Database for IoT<\/title>\n<meta name=\"description\" content=\"\u6628\u5e74\u3001\u79c1\u305f\u3061\u306fGridDB\u3068Kafka\u3092\u4f7f\u3063\u3066\u30c7\u30fc\u30bf\u3092\u53d6\u308a\u8fbc\u3080\u65b9\u6cd5\u306b\u3064\u3044\u3066\u306e\u30ac\u30a4\u30c9\u30fb\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u30ea\u30ea\u30fc\u30b9\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001CSV\u304b\u3089\u30b3\u30f3\u30bd\u30fc\u30eb\u30fb\u30d7\u30ed\" 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