Learn more about bidirectional Unicode characters Spark applications running on EMR. SPARK we need to make below necessary import Convert Schema to DataFrame in Spark . System Properties: shows more details about the JVM. With a properties file: dse spark-history-server start --properties-file properties file. Informatica BDM mapping with SPARK engine write... else props will be ignored. prefix and will ignore the rest (and depending on the version a warning might be thrown). Read Properties file in spark Scala . SPARK In the above file, you bucket the configurations related to spark/mysql under the respective headers to improve the readability. launch $SPARK_HOME/bin/spark-submit --properties-file mypropsfile.conf. How to execute Scala script in Spark Sample Apache Spark configuration files - IBM spark.sql.files.maxPartitionBytes ¶ The maximum number of bytes to pack into a single partition when reading files. Some common properties like master URL and application name, as well as an arbitrary key-value pair, configured through the set() method. spark.sql.files.maxRecordsPerFile ¶ Maximum number of records to write out to a single file. Doing things like adding comments, so someone looking at your code can follow it, can go a long way. Another thing to mention is that we set org.apache.spark to level … I have read the others threads about this topic but I don't get it to work. Configuration Properties¶. hive.spark.use.ts.stats.for.mapjoin Ideal to put in default arguments (templated) dataproc_spark_jars – HCFS URIs of files to be copied to the working directory of Spark drivers and distributed tasks. For Spark 1.5.2 only and only used in Spark shells. *The Spark properties in the Configuration property column can either be set in the spark-defaults.conf file (if listed in lower case) or in the spark-env.sh file (if listed in upper case). Spark must be able to bind to all the required ports. spark.executor.memory: Amount of memory to use per executor process. ... Reading configurations from .properties file. Use SQLConf.maxRecordsPerFile method to access the current value. But, when we have more line of code, we prefer to write in a file and execute the file. spark-shell --master yarn --files "/tmp/a" You can see that the A file is uploaded to HDFS: Read this file in the code, as follows. Spark 2 uses Apache Log4j, which can be configured through a properties file. The properties file should contain all the required configuration properties. Spark Submit Command Explained with Examples. In order to use a volume, you should specify the volumes to provide for the Pod in .spec.volumes and declare … apache/spark. By default, a log4j.properties file found in the root of your project will be appended to the existing Spark logging properties for every session and job. CheckBox - AS3 Flex. The spark-submit command is a utility to run or submit a Spark or PySpark application program (or job) to the cluster by specifying options and configurations, the application you are submitting can be written in Scala, Java, or Python (PySpark). Hadoop Properties: displays properties relative to Hadoop and YARN. This example uses a java .properties file to provide a flexible way to pass values such as the job name, the location for logback.xml file to the compiled code of the spark job. In addition, since the Job expects its dependent jar files for execution, you must specify the directory in the file system to which these jar files are transferred so that Spark can access these files: Therefore, your options are as follows. You can also set a property using SQL SET command. Custom Spark stderr or stdout console logs into a local file or hdfs making the log4j.properties is not working. You can reference properties in a configuration, Log4j will directly replace them, or Log4j will pass them to an underlying component that will dynamically resolve them. On the worker: %sh cat /home/ubuntu/databricks/spark/dbconf/log4j/executor/log4j.properties. The output of the mapping is to write to Hive table. Configuration property details. You can set a configuration property in a SparkSession while creating a new instance using config method. The following list describes the properties of a Spark job. Having clean understandable code is important. The default Spark properties file is … If your cluster has more CPUs, more partitions can be optimized. You can see this file to read it correctly in the Excutor: Once, a total Compared to spark.metrics.conf. Log4J has even been ported to the .NET world. string: 2g: yarn-site.yarn.log-aggregation.retain-seconds: When log aggregation in enabled, this property determines the … Wanted to edit the yarn_site.xml to redirect the logs that didn't work. spark-defaults.conf. Spark must be able to bind to all the required ports. Property value returned by this statement excludes some properties that are internal to spark and hive. Log4J 2 Configuration: Using Properties File. The Spark shell and spark-submit tool support two ways to load configurations dynamically. The log4j properties file contains the entire runtime configuration used by log4j. how to call in code:( inside code) sc.getConf.get("spark.driver.host") // localhost 12--driver-memory: Memory for driver (e.g. *The Spark properties in the Configuration property column can either be set in the spark-defaults.conf file (if listed in lower case) or in the spark-env.sh file (if listed in upper case). The Spark Streaming tFileOutputDelimited component belongs to the File family. We can also easily set these properties on a SparkConf. … Saving and executing the Job. You must overwrite the configuration files using init scripts. My batch file looks like this and creates the \Spark directory under 'AppData\Roaming' for ALL profiles on that particular machine, and copies the properties file to it - so everyone using that pc has the standard settings. For some data formats, common compression formats can be written. When a user clicks a CheckBox component or its associated text, the CheckBox component sets its selected property to true for … If suppose you have a property which doesn't start with spark: job.property: app.name=xyz $SPARK_HOME/bin/spark-submit --properties-file job.property Spark will ignore all properties doesn't have prefix spark. Currently setting --conf 'spark.executor.extraJavaOptions=-Dlog4j.configuration=file:"log4j.properties"' and --files log4j.properties does not work, because according to worker logs loading of specified log4j configuration happens before any files are … ; Environment variables can be used to set per-machine settings, such as the IP address, through the conf/spark-env.sh script on each node. Running ./bin/spark-submit --help will show the entire list of … The excluded properties are: All the properties that start with prefix spark.sql; Property keys such as: EXTERNAL, comment All the properties generated internally by hive to store statistics. To start a job run using the start-job-run command. These files are saved in /var/log/spark directory, with filename picked from system property dm.logging.name.We also set the logging level of our package com.shzhangji.dm according to dm.logging.level property. Hello, i’m new to java, can u tell me what’s the different between point 2 (Load a properties file from the file system) and point 3 (Load a properties file config.properties from project classpath), and can you suggest me when i should use point 2 … Specifying the … Using spark-submit, there needs to be a process which makes the custom log4j.properties file available to the driver and the executors. We have one mapping where it uses Spark engine. SparkConf – The Spark Properties handles maximum applications settings and are configured separately for each application. Default: 0. The excluded properties are: All the properties that start with prefix spark.sql; Property keys such as: EXTERNAL, comment All the properties generated internally by hive to store statistics. Removed In: Hive 3.0.0 with HIVE-16336, replaced by Configuration Properties#hive.spark.use.ts.stats.for.mapjoin; If this is set to true, mapjoin optimization in Hive/Spark will use source file sizes associated with the TableScan operator on the root of the operator tree, instead of using operator statistics. spark.myapp.input spark.myapp.output. This properties file serves as the default settings file, which is used by the spark-submit script to launch applications in a cluster. We can also write multiple messages into multiple files for certain reasons, for example, if the file size reached a certain threshold. Properties come from values defined in the configuration file, system properties, environment variables, the ThreadContext Map, and data present in the event. type string The type of the resource. --conf "spark.driver.extraJavaOptions=-Dlog4j.configuration=log4j-spark.properties" --conf "spark.executor.extraJavaOptions=-Dlog4j.configuration=log4j-spark.properties" This assumes you have a file called log4j-spark.properties on the classpath (usually in resources for the project you're using to build the jar. Command-lineFor those that want to set the properties through the command-line (either directly or by loading them from a file), note that Spark only accepts those that start with the "spark." An alternative to change conf/spark-defaults.conf is to use the –conf prop=value flag. This file will contain log4j appenders information, log … 1000M, 2G) (Default: 512M). spark.myapp.output /output/path. log4j.appender.rolling.file= ${spark.yarn.app.container.log.dir}/spark.log Create log4j.properties file from template file log4j.properties.template. The spark-shell is an environment where we can run the spark scala code and see the output on the console for every execution of line of the code. spark—Sets the maximizeResourceAllocation property to true or false. Although Spark SQL … Step 2 : Reading the file in Spark – Scala. This means log4j will roll the log file by 50MB and keep only 5 recent files. hive.spark.use.ts.stats.for.mapjoin string: spark-env.SPARK_DAEMON_MEMORY: Spark Daemon Memory. But we are working on Spark Automation process and trying to keep the logs in Custom location. The properties file should contain all the required configuration properties. Property value returned by this statement excludes some properties that are internal to spark and hive. Interval of cleaner for spark history in (ms/s/m | min/h/d/y). Apache Spark has three system configuration locations: Spark properties control most application parameters and can be set by using a SparkConf object, or through Java system properties. Otherwise, when you submit your Spark job, you have to also provide the job with a keytab for authenticating with the remote realm and you’ll need to set your Kafka client properties to use this keytab when connecting (using the sasl.jaas.config property, as explained in this post). The Spark Metastore is based generally on Hive - Metastore Articles Related Management Remote connection Conf Spark - Configuration Conf key Value Desc spark.sql.hive.caseSensitiveInferenceMode INFER_AND_SAVE Sets the action to take when a case-sensitive schema cannot be read from a Hive table's properties. The log4j.properties file is a log4j configuration file which stores properties in key-value pairs. Read CSV File With New Line in Spark . Arbitrary Spark configuration property. ; spark.executor.cores: Number of cores per executor. spark.myapp.input /input/path. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. dataproc_spark_properties – Map for the Pig properties. … Edit file log4j.properties to change default logging to WARN: Run the application again and the output is very clean as the following screenshot shows: For Scala. Hive Metastore. The metrics system is # divided into instances which correspond to internal components. Note. However, there may be instances when you need to check (or set) the values of specific Spark configuration properties in a notebook. September 24, 2021. When you configure a cluster using the Clusters API 2.0, set Spark properties in the spark_conf field in the Create cluster request or Edit cluster request. When true, Amazon EMR automatically configures spark-defaults properties based on cluster hardware configuration. spark-submit command supports the following. 14--driver-library-path spark-defaults—Sets values in the spark-defaults.conf file. The first are command line options, such as --master, as shown above.spark-submit can accept any Spark property using the --conf flag, but uses special flags for properties that play a part in launching the Spark application. For example, Apache Spark and Apache Hadoop have several XML and plain text configuration files. When we check the external hive table location after the mapping execution we are seeing so many file splits with very very small size and 3-4 files with data that is needed. Configuration properties (aka settings) allow you to fine-tune a Spark SQL application. Removed In: Hive 3.0.0 with HIVE-16336, replaced by Configuration Properties#hive.spark.use.ts.stats.for.mapjoin; If this is set to true, mapjoin optimization in Hive/Spark will use source file sizes associated with the TableScan operator on the root of the operator tree, instead of using operator statistics. properties.sparkVersion string The Apache Spark version. The previous answer's approach has the restriction that is every property should start with spark in property file-e.g. To control the output file size, set the Spark configuration spark.databricks.delta.autoCompact.maxFileSize. By default, a log4j.properties file found in the root of your project will be appended to the existing Spark logging properties for every session and job. Repository: Select the repository file where the properties are stored. Spark 2 uses Apache Log4j, which can be configured through a properties file. Edit file log4j.properties to change default logging to WARN: Run the application again and the output is very clean as the following screenshot shows: For Scala. These properties are used to configure tFileOutputDelimited running in the Spark Streaming Job framework. In-order to achieve this we added "log4j.appender.rolling.file" property in "Custom spark-log4j-properties" section through Ambari. Volumes in Kubernetes are directories which are accessible to the containers in a pod. Some examples of config files from internet are corrupted. So make sure you have the correct syntax in gss.conf file and right options in Krb5LoginModule. Last year I've started to write bash script for testing SSO, however my plans were changed. SELECT in Spark DataFrame . The name is assumed to be absolute * and can use either "/" or "." The demo uses spark-submit --files and spark.kubernetes.file.upload.path configuration property to upload a static file to a directory that is then mounted to Spark application pods.. Using spark-submit, there needs to be a process which makes the custom log4j.properties file available to the driver and the executors. How to Setup the Spark properties file and configuration in Edge Node for Spark-based Pipelines Print Modified on: Thu, 23 Aug, 2018 at 7:06 PM NULLs in Spark DataFrame . Use the start-job-run command with a path to the start-job-run-request.json file stored locally or in Amazon S3. Hello, i’m new to java, can u tell me what’s the different between point 2 (Load a properties file from the file system) and point 3 (Load a properties file config.properties from project classpath), and can you suggest me when i should use point 2 … AWS Glue can write output files in several data formats, including JSON, CSV, ORC (Optimized Row Columnar), Apache Parquet, and Apache Avro. The latest 10 files are backed up for for historical analysis. With a properties file: dse spark-history-server start --properties-file properties file. If this value is 0 or negative, there is no limit. Note: If you specify a properties file, none of the configuration in spark-defaults.conf is used. Depending on the distribution you are using or the issues you encounter, you may need to add specific Spark properties to the Advanced properties table in the Spark configuration tab of the Run view of your Job.. Alternatively, define a Hadoop connection metadata in the Repository and in its wizard, select the Use Spark properties check box to open the properties table and add … Programmatically, by creating a ConfigurationFactory and Configuration implementation. The current configurations are stored in two log4j.properties files: To set class-specific logging on the driver or on workers, use the following script: Replace with the property name, and with the property value. E.g. tags object Resource tags. How to properly configure log4j properties on worker per single application using spark-submit script? string: 12h: hadoop-env.HADOOP_CLASSPATH: Sets the additional Hadoop classpath. files – List of files to be copied to the working directory. user9184002 is a new contributor to this site. Merge Multiple Data Frames in Spark . To review, open the file in an editor that reveals hidden Unicode characters. Table 1. … Useful for … In the Spark Configuration tab in the Run view, define the connection to a given Spark cluster for the whole Job. It is also easy to swap out the config file for different users or different purposes, especially in self-serving environments. If the path you set points to a folder, this component will read all of the files stored in that folder, for example, /user/talend/in; if sub-folders exist, the sub-folders are automatically ignored unless you define the property spark.hadoop.mapreduce.input.fileinputformat.input.dir.recursive to be true in the Advanced properties table in the Spark configuration tab. Note: If you specify a properties file, none of the configuration in spark-defaults.conf is used. Configuration of Log4j 2 can be accomplished in 1 of 4 ways: Through a configuration file written in XML, JSON, YAML, or properties format. The default value is 134217728, which sets the size to 128 MB. As we have mentioned name of file as app_prop.txt , we are going to load it using from File function of Scala io Source . It is more interactive environment. Spark binary comes with spark-submit.sh script file for Linux, Mac, and spark-submit.cmd command file for windows, these scripts are available at $SPARK_HOME/bin directory. If you are using Cloudera distribution, you may also find spark2-submit.sh which is used to run Spark 2.x applications. Spark Config Properties; Spark pool Config Properties Spark configuration file to specify additional properties. The output of the mapping is to write to Hive table. Log4j Properties. Log4J 2 is a logging framework designed to address the logging requirements of enterprise applications. ; Logging can be configured … Note. conf = SparkConf().setAppName("testApp").set("spark.hadoop.validateOutputSpecs", "false").set("spark.executor.cores","4").set("spark.executor.instances","4") spark = SparkContext(conf=conf) Hope this helps you to configure a job/notebook as per your … Alternatively, you can modify where to find the application.conf file through system properties. ... # This file configures Spark's internal metrics system. This component is available in Talend Real Time Big Data Platform and Talend Data Fabric. spark.sql.warehouse.dir). Its predecessor Log4J 1.x has been around for more than one and a half decade and is still one of the most widely used Java logging framework. To improve the performance of Spark with S3, use version 2 of the output committer algorithm and disable speculative execution: Add the following parameter to the YARN advanced configuration snippet (safety valve) to take effect: spark.hadoop.mapreduce.fileoutputcommitter.algorithm.version … UDF in Spark . In my case, there are 10 properties to config. To work around this limitation, define the elasticsearch-hadoop properties by appending the spark. The CheckBox component consists of an optional label and a small box that can contain a check mark or not. When we check the external hive table location after the mapping execution we are seeing so many file splits with very very small size and 3-4 files with data that is needed. Spark Configuration 1 Spark Properties. Spark properties control most application settings and are configured separately for each application. 2 Overriding configuration directory. ... 3 Inheriting Hadoop Cluster Configuration. ... 4 Custom Hadoop/Hive Configuration. ... 5 Custom Resource Scheduling and Configuration Overview. ... Spark Properties: lists the application properties like ‘spark.app.name’ and ‘spark.driver.memory’. Note: Properties like ‘spark.hadoop’ are shown not in this part but in ‘Spark Properties’. We have one mapping where it uses Spark engine. Create log4j.properties file from template file log4j.properties.template. The current configurations are stored in two log4j.properties files: On the driver: %sh cat /home/ubuntu/databricks/spark/dbconf/log4j/driver/log4j.properties. ; spark.yarn.executor.memoryOverhead: The amount of off heap memory (in megabytes) to be allocated per executor, when running Spark on Yarn.This is memory that accounts for things … To write your information about logging into multiple files, you have to use org.apache.log4j.RollingFileAppender class which extends the FileAppender class and inherits all its properties. Configuration properties (aka settings) allow you to fine-tune a Spark SQL application.. Configuration properties are configured in a SparkSession while creating a new instance using config method (e.g. If not specified, this will look for conf/spark-defaults. … As an example, in this video, a log4j.properties file is created from scratch to meet the following conditions: Each log file will have a maximum size of 100Mb, a reasonable size that can be reviewed on most file editors while holding a reasonable time lapse of Spark events. If you specify a property that is not supported by the driver, then the driver attempts to apply the property as a Spark server-side property for the client session. The resource must map * to a file with .properties extention. In Spark config, enter the configuration properties as one key-value pair per line. In most cases, you set the Spark configuration at the cluster level. properties.sparkEventsFolder string The Spark events folder. 11--properties-file: Path to a file from which to load extra properties. Take care in asking for clarification, commenting, and answering. Below is the output of my properties file . aws emr-containers start-job-run \ --cli-input-json file://./start-job-run-request.json. Spark Properties and spark-defaults.conf Properties File Spark properties are the means of tuning the execution environment for your Spark applications. The following example shows the contents of the spark-defaults.conf file: # Default system properties included when running spark-submit. Property Support. props file : (mypropsfile.conf) // note: prefix your key with "spark." Get and set Apache Spark configuration properties in a notebook. I present both the spark-submit flag and the property name to use in the spark-defaults.conf file and –conf flag. echo off if exist "C:\Program Files (x86)\Spark\Spark.exe" goto end call spark_2_8_0.exe -q Configuration file which stores properties in key-value pairs is to write to Hive table on cluster hardware configuration the. Details about the JVM can follow it, can go a long way is also to...: displays properties relative to Hadoop and YARN both the spark-submit flag and the property name to use executor. Used by the spark-submit script to DBFS and select a cluster using the cluster configuration UI \ cli-input-json. Value is 0 or negative, there is no limit a new instance using config method pass to the in. Formats can be written is 0 or negative, there are 10 properties config! From template file log4j.properties.template if you are using Cloudera distribution, you may also find spark2-submit.sh which is used things!: //stackoverflow.com/questions/70375606/custom-spark-stderr-or-stdout-console-logs-into-a-local-file-or-hdfs '' > Spark < /a > Below is the output file size set. €˜Spark.Hadoop’ are shown not in this part but in ‘Spark Properties’, when we have name... Yarn_Site.Xml to redirect the logs that did n't work in spark-defaults.conf is used to set per-machine settings, such the... 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Current configurations are stored in two log4j.properties files: on the driver each application easy spark properties file swap out the file. //Www.Ibm.Com/Docs/En/Ssctfe_1.1.0/Com.Ibm.Azk.V1R1.Azka100/Topics/Azkic_T_Confignetwork.Htm '' > Spark < /a > Below is the output of properties... //Airflow.Apache.Org/Docs/Apache-Airflow/1.10.6/_Api/Airflow/Contrib/Operators/Dataproc_Operator/Index.Html '' > Spark < /a > Below is the output spark properties file the mapping to. Through Ambari for … < a href= '' https: //aws.amazon.com/blogs/big-data/submitting-user-applications-with-spark-submit/ '' > Spark /a! Files are backed up for for historical analysis //www.ibm.com/docs/en/SSCTFE_1.1.0/com.ibm.azk.v1r1.azka100/topics/azkic_t_confignetwork.htm '' > Spark < /a > property Support most... Memory to use per executor process if you specify a properties file and execute the file Spark... 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For fast access ): shows more details about the JVM -- driver-library-path < a href= '' https //docs.datastax.com/en/dse/5.1/dse-dev/datastax_enterprise/spark/sparkConfiguringfHistoryServer.html! Prefer to write in a cluster using the start-job-run command 1000m, 2G ) ( default: 512M ) that... If this value is 0 or negative, there is no limit rest of the properties of a Spark …. Pass to the containers in a pod SQL … < a href= '' https: //community.cloudera.com/t5/Support-Questions/Spark-job-submit-log-messages-on-console/td-p/163043 '' > <. The logs that did n't work SQL … < a href= '' https: //data-flair.training/blogs/learn-apache-spark-sparkcontext/ >... Version a warning might be thrown ) to pass to the file family control most settings. Are shown not in this part but in ‘Spark Properties’ depending on the driver cli-input-json file:.... In most cases, you set the Spark Streaming job framework to swap out the config file can the... 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Properties file in an editor that reveals hidden Unicode characters rest ( and depending on the:!: shows more details about the JVM file is a logging framework to... Limitation, define the elasticsearch-hadoop properties by appending the Spark configuration at the cluster level Saving and the. Applications in a SparkSession while creating a ConfigurationFactory and configuration implementation Spark and Hive upload script. Spark-Submit script to DBFS and select a cluster 1.5.2 only and only used in Scala. Properties in key-value pairs at your code can follow it, can go a long way history <. ; environment variables can be written > Submitting User applications with spark-submit < /a Saving. Console < /a > log4j properties or negative, there are 10 properties to config of file app_prop.txt! Is assumed to be absolute * and can use either `` / '' or ``. partition Reading! This we added `` log4j.appender.rolling.file '' property in `` Custom spark-log4j-properties '' section through Ambari users or different purposes especially! A Hive Metastore in key-value pairs '' > Informatica < /a > Read properties file serves as the address. Even been ported to the driver: % sh cat /home/ubuntu/databricks/spark/dbconf/log4j/driver/log4j.properties aka settings ) allow you to fine-tune Spark! Properties to config: 12h: hadoop-env.HADOOP_CLASSPATH: spark properties file the size to 128 MB the properties... Swap out the config file for different users spark properties file different purposes, especially in self-serving environments to run 2.x... To internal components metadata of persistent relational entities ( e.g configure tFileOutputDelimited running in the file!: //data-flair.training/blogs/learn-apache-spark-sparkcontext/ '' > properties < /a > note configuration file which stores properties in key-value.! Used to set per-machine settings, such as the IP address, through the conf/spark-env.sh script on each node Amount... If Spark can not bind to a specific port, it tries again with the next port number //docs.datastax.com/en/dse/5.1/dse-dev/datastax_enterprise/spark/sparkConfiguringfHistoryServer.html! To redirect the logs that did n't work case, there is no limit the. If you specify a properties file should contain all the required configuration properties ( aka settings ) allow you fine-tune. ) ( default: 512M ) Below is the output of the mapping to... Reading the file family Spark applications to run Spark 2.x applications Submitting User with! > properties < /a > spark-defaults.conf SparkConf, a metrics config file group... Spark 1.5.2 only and only used in Spark – Scala application settings and are configured for... Open the file -- driver-java-options: extra java options to pass to the file in an editor that hidden. Maximizeresourceallocation property to true or false //stackoverflow.com/questions/31115881/how-to-load-java-properties-file-and-use-in-spark '' > Informatica < /a > Below the! # divided into instances which correspond to internal components properties in key-value pairs fast )! Check mark or not only and only used in Spark Scala > Hive Metastore manage! If not specified, this will look for conf/spark-defaults describes the properties file serves as the settings... Displays properties relative to Hadoop and YARN it using from file function of io! This limitation, define the elasticsearch-hadoop properties by appending the Spark Streaming tFileOutputDelimited component belongs the... Two log4j.properties files: on the version a warning might be thrown ) used to configure tFileOutputDelimited running the... Clarification, commenting, and answering running in the Spark Streaming job framework (! Databases, tables, columns, partitions ) in a relational database ( for access. Useful for … < a href= '' https spark properties file //stackoverflow.com/questions/70375606/custom-spark-stderr-or-stdout-console-logs-into-a-local-file-or-hdfs '' > dataproc < /a > Hive.. Dbfs and select a cluster using the start-job-run command write to Hive table per process! Properties that are internal to Spark and Hive when Reading files of enterprise applications based!

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