java - Gobblin:java.lang.ClassNotFoundException:org.apache.gobblin.source.extractor.extract.jdbc.MysqlSource

Question

我正在尝试使用 gobblin 从 mysql 到 hdfs 数据摄取。使用以下步骤运行 mysql-to-gobblin.pull 时:

1)启动hadoop:
sbin\start-all.cmd

2)启动mysql服务:
sudo service mysql start

3) 设置 GOBBLIN_WORK_DIR:
export GOBBLIN_WORK_DIR=/mnt/c/users/name/incubator-gobblin/GOBBLIN_WORK_DIR

4) 设置 GOBBLIN_JOB_CONFIG_DIR
export GOBBLIN_JOB_CONFIG_DIR=/mnt/c/users/name/incubator-gobblin/GOBBLIN_JOB_CONFIG_DIR

5) 独立启动
bin/gobblin.sh service standalone start --jars /mnt/C/Users/name/incubator-gobblin/build/gobblin-sql/libs/gobblin-sql-0.15.0.jar

出现以下错误

ERROR [JobScheduler-0] org.apache.gobblin.scheduler.JobScheduler$NonScheduledJobRunner  637 - Failed to run job GobblinMySql
org.apache.gobblin.runtime.JobException: Failed to run job GobblinMySql
Caused by: java.lang.ClassNotFoundException: org.apache.gobblin.source.extractor.extract.jdbc.MysqlSource

下面是 mysql-to-gobblin.pull 文件

# Job properties
job.name=GobblinMySql
job.group=MySql
job.description=Data pull from MySql

# Extract properties

extract.table.type=snapshot_only
extract.table.name=user

# Property to consider the extract as full dump
extract.is.full=true

# Source properties
# Source properties - source class to extract data from Mysql Source
source.class=org.apache.gobblin.source.extractor.extract.jdbc.MysqlSource

# Source properties
source.max.number.of.partitions=1
source.querybased.partition.interval=1
source.querybased.is.compression=true
source.querybased.watermark.type=timestamp

# Converter properties - Record from mysql source will be processed by the below series of converters
converter.classes=gobblin.converter.avro.JsonIntermediateToAvroConverter

# date columns format
converter.avro.timestamp.format=yyyy-MM-dd HH:mm:ss'.0'
converter.avro.date.format=yyyy-MM-dd
converter.avro.time.format=HH:mm:ss

# Qualitychecker properties
qualitychecker.task.policies=gobblin.policies.count.RowCountPolicy,gobblin.policies.schema.SchemaCompatibilityPolicy
qualitychecker.task.policy.types=OPTIONAL,OPTIONAL

# Publisher properties
data.publisher.type=gobblin.publisher.BaseDataPublisher
source.querybased.schema=praveen_schema
source.entity=user
source.querybased.extract.type=snapshot

writer.builder.class=org.apache.gobblin.writer.SimpleDataWriterBuilder
writer.file.path.type=tablename
writer.destination.type=HDFS
writer.output.format=txt

data.publisher.type=org.apache.gobblin.publisher.BaseDataPublisher

mr.job.max.mappers=1

metrics.reporting.file.enabled=true
metrics.log.dir=/gobblin-kafka/metrics
metrics.reporting.file.suffix=txt

bootstrap.with.offset=earliest

fs.uri=hdfs://localhost:9000
writer.fs.uri=hdfs://localhost:9000
state.store.fs.uri=hdfs://localhost:9000

mr.job.root.dir=/gobblin-kafka/working
state.store.dir=/gobblin-kafka/state-store
task.data.root.dir=/jobs/kafkaetl/gobblin/gobblin-kafka/task-data
data.publisher.final.dir=/gobblintest/job-output

我正在从 /mnt/c/users/name/incubator-gobblin/build/gobblin-distribution/distributions/gobblin-dist 运行此命令目录。

我需要在这里做哪些改变？我该如何解决它？

Answer 1

解决方案是添加此 jar 或依赖项以摆脱 Caused by: java.lang.ClassNotFoundException: org.apache.gobblin.source.extractor.extract.jdbc.MysqlSource

<dependency>
    <groupId>com.linkedin.gobblin</groupId>
    <artifactId>gobblin-core</artifactId>
    <version>0.8.0</version>
</dependency>

从此 mvn 下载 jar website .

希望这有帮助。