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February 14, 2020 20:17
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simple Hudi slow example
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HUDI_FORMAT = "org.apache.hudi" | |
TABLE_NAME = "hoodie.table.name" | |
RECORDKEY_FIELD_OPT_KEY = "hoodie.datasource.write.recordkey.field" | |
PRECOMBINE_FIELD_OPT_KEY = "hoodie.datasource.write.precombine.field" | |
OPERATION_OPT_KEY = "hoodie.datasource.write.operation" | |
BULK_INSERT_OPERATION_OPT_VAL = "bulk_insert" | |
UPSERT_OPERATION_OPT_VAL = "upsert" | |
BULK_INSERT_PARALLELISM = "hoodie.bulkinsert.shuffle.parallelism" | |
UPSERT_PARALLELISM = "hoodie.upsert.shuffle.parallelism" | |
config = { | |
"table_name": "example_table", | |
"target": "s3://example-bucket/example_table/", | |
"primary_key": "id", | |
"sort_key": "id", | |
} | |
#spark.master yarn | |
#spark.submit.deployMode client | |
#spark.executor.memory 9486M | |
#spark.driver.memory 2048M | |
#spark.executor.cores 4 | |
def get_json_data(start, count): | |
data = [{"id": i} for i in range(start, start + count)] | |
return data | |
def create_json_df(spark, data): | |
sc = spark.sparkContext | |
return spark.read.json(sc.parallelize(data, 2)) | |
def main(spark): | |
df1 = create_json_df(spark, get_json_data(0, 4000000)) | |
print(f'{df1.count()} records in source 1') | |
# Runs quick | |
(df1.write.format(HUDI_FORMAT) | |
.option(PRECOMBINE_FIELD_OPT_KEY, config["sort_key"]) | |
.option(RECORDKEY_FIELD_OPT_KEY, config["primary_key"]) | |
.option(TABLE_NAME, config['table_name']) | |
.option(OPERATION_OPT_KEY, BULK_INSERT_OPERATION_OPT_VAL) | |
.option(BULK_INSERT_PARALLELISM, 1) | |
.mode("Overwrite") | |
.save(config['target'])) | |
print(f'{spark.read.format(HUDI_FORMAT).load(config["target"]+"/*").count()} records in Hudi table') | |
# Runs quick | |
(df1.limit(3000000).write.format(HUDI_FORMAT) | |
.option(PRECOMBINE_FIELD_OPT_KEY, config["sort_key"]) | |
.option(RECORDKEY_FIELD_OPT_KEY, config["primary_key"]) | |
.option(TABLE_NAME, config['table_name']) | |
.option(OPERATION_OPT_KEY, UPSERT_OPERATION_OPT_VAL) | |
.option(UPSERT_PARALLELISM, 20) | |
.mode("Append") | |
.save(config['target'])) | |
print(f'{spark.read.format(HUDI_FORMAT).load(config["target"]+"/*").count()} records in Hudi table') | |
# Runs very slow | |
(df1.write.format(HUDI_FORMAT) | |
.option(PRECOMBINE_FIELD_OPT_KEY, config["sort_key"]) | |
.option(RECORDKEY_FIELD_OPT_KEY, config["primary_key"]) | |
.option(TABLE_NAME, config['table_name']) | |
.option(OPERATION_OPT_KEY, UPSERT_OPERATION_OPT_VAL) | |
.option(UPSERT_PARALLELISM, 20) | |
.mode("Append") | |
.save(config['target'])) | |
print(f'{spark.read.format(HUDI_FORMAT).load(config["target"]+"/*").count()} records in Hudi table') | |
if __name__ == "__main__": | |
main(spark) |
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