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Maxim Gekk commented on SPARK-29055: ------------------------------------ [~Geopap] Can you provide the csv files? > Memory leak in Spark Driver > --------------------------- > > Key: SPARK-29055 > URL: https://issues.apache.org/jira/browse/SPARK-29055 > Project: Spark > Issue Type: Bug > Components: Block Manager, Spark Core > Affects Versions: 2.3.3, 2.4.3, 2.4.4 > Reporter: George Papa > Priority: Major > > I used Spark 2.1.1 and I upgraded into the latest version 2.4.4. I observed > from Spark UI that the driver memory is{color:#ff0000} increasing > continuously{color} and after of long running I had the following error : > {color:#ff0000}java.lang.OutOfMemoryError: GC overhead limit exceeded{color} > In Spark 2.1.1 the driver memory consumption (Storage Memory tab) was > extremely low and after the run of ContextCleaner and BlockManager the memory > was decreasing. > Also, I tested the Spark versions 2.3.3, 2.4.3 and I had the same behavior. > > *HOW TO REPRODUCE THIS BEHAVIOR:* > Create a very simple application(streaming count_file.py) in order to > reproduce this behavior. This application reads CSV files from a directory, > count the rows and then remove the processed files. > {code:java} > import os > from pyspark.sql import SparkSession > from pyspark.sql import functions as F > from pyspark.sql import types as T > target_dir = "..." > spark=SparkSession.builder.appName("DataframeCount").getOrCreate() > while True: > for f in os.listdir(target_dir): > df = spark.read.load(f, format="csv") > print("Number of records: {0}".format(df.count())) > > os.remove(f) > print("File {0} removed successfully!".format(f)){code} > Submit code: > {code:java} > spark-submit > --master spark://xxx.xxx.xx.xxx > --deploy-mode client > --executor-memory 4g > --executor-cores 3 > --queue streaming count_file.py > {code} > > *TESTED CASES WITH THE SAME BEHAVIOUR:* > * I tested with default settings (spark-defaults.conf) > * Add spark.cleaner.periodicGC.interval 1min (or less) > * {{Turn spark.cleaner.referenceTracking.blocking}}=false > * Run the application in cluster mode > * Increase/decrease the resources of the executors and driver > * I tested with extraJavaOptions in driver and executor -XX:+UseG1GC > -XX:InitiatingHeapOccupancyPercent=35 -XX:ConcGCThreads=12 > > *DEPENDENCIES* > * Operation system: Ubuntu 16.04.3 LTS > * Java: jdk1.8.0_131 (tested also with jdk1.8.0_221) > * Python: Python 2.7.12 -- This message was sent by Atlassian Jira (v8.3.2#803003) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org