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| apiVersion: networking.k8s.io/v1 | |
| kind: Ingress | |
| metadata: | |
| name: ... | |
| namespace: ... | |
| annotations: | |
| kubernetes.io/ingress.class: alb | |
| alb.ingress.kubernetes.io/load-balancer-name: ... | |
| alb.ingress.kubernetes.io/scheme: internal |
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| spark | |
| .read // ๋ฐ์ดํฐ๋ฅผ ์ฝ์ด์ต๋๋ค. | |
| .format("jdbc") // "jdbc" ๋ฟ ์๋๋ผ "kafka" ๋ฑ ๋ค์ํ Format ์ ์ฌ์ฉํ ์ ์์ต๋๋ค | |
| .join(...) // ๋ค๋ฅธ ๋ฐ์ดํฐ์ Join (๋ณํฉ) ํฉ๋๋ค. | |
| .where(...) // ๋ฐ์ดํฐ Row ํํฐ๋งํ๊ฑฐ๋ | |
| .selectExpr(...) // ํ์ํ Column ๋ง ์ ํํฉ๋๋ค. | |
| repartition(5, "col1") // ์ผ๋ง๋ / ์ด๋ค ๊ธฐ์ค์ผ๋ก ๋ถ์ฐํด ์ฒ๋ฆฌํ ์ง๋ฅผ ์ ์ํฉ๋๋ค |
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| spark.executor.instances = 10 | |
| spark.executor.cores = 10 | |
| spark.executor.memory = 30g (GiB) | |
| spark.memory.memoryOverhead = 0.1 | |
| spark.memory.fraction = 0.8 | |
| spark.memory.storageFraction = 0.5 | |
| spark.memory.offHeap.enabled = false |
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| ExecutorLostFailure (executor 7 exited caused by one of the running tasks) Reason: | |
| Container killed by YARN for exceeding memory limits. 33.2 GB of 33 GB physical memory used. | |
| Consider boosting spark.yarn.executor.memoryOverhead or disabling yarn.nodemanager.vmem-check-enabled because of YARN-4714. |
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| dfInitial = spark.read(...) | |
| dfFiltered = dfInitial.select(...).where(..).cache() # ์บ์ ํธ์ถ | |
| dfJoined = (...) | |
| # action ํธ์ถ | |
| # Transformation ์ด ์คํ๋๋ฉฐ dfFiltered ๋ฅผ ๊ณ์ฐํ | |
| # dfFiltered ๋ฅผ ์ฌ๋ฌ๋ ๋๋ ์ง Executor ์์ ๋ฉ๋ชจ๋ฆฌ์ ์บ์ฑ | |
| dfJoined.write(...) |
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| df = spark.read.(...) | |
| df.createOrReplaceTempView("PROPERTY_META") | |
| spark.sql("SELECT * FROM PROPERTY_META ..") |
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| # repartition ์ด ์ปฌ๋ผ ๊ธฐ์ค ์์ด ๋์์ผ๋ฏ๋ก | |
| # ๋์ผํ property_id (e.g., 2101) ๊ฐ ์ฌ๋ฌ Partition = Connection ์ ๋๋์ด Insert | |
| df\ | |
| .repartition(10)\ | |
| .write\ | |
| .mode("append")\ | |
| .format("jdbc")\ | |
| .option("numPartitions", "10") | |
| # property_id ๊ธฐ์ค์ผ๋ก Partition ์ด ๋๋๊ณ |
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| CREATE TABLE ... | |
| ( | |
| ... | |
| PRIMARY KEY (property_id, part) | |
| ) |
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| df = spark.read.csv(...) | |
| dfSelected = df.selectExpr("...") | |
| df.rdd.id | |
| dfSelected.rdd.id |
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| df = spark.read.csv(...) | |
| dfSelected = df.selectExpr("...") |
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