When a coordinator job is submitted to Oozie Coordinator, the submitter must specified all the required job properties plus the HDFS path to the coordinator application definition for the job. There is single output event, which resolves to January 1st PST8PDT instance of the 'siteAccessStats' dataset. , FAILED among 2009010120, 2009010121, …., 2009010123, 2009010200, the maximum would be “2009010200”. For example, suppose action 1 and 2 are both READY, the current time is 5:00pm, and action 2’s nominal time is 5:10pm. All datetime values are always in UTC I need to run a shell script 1 minute interval. The coordinator application definition HDFS path must be specified in the 'oozie.coord.application.path' job property. For timezones that observe daylight saving this application will not work as expected as it will consume the wrong number of dataset instances in DST switch days. When a user requests to kill a coordinator job, oozie puts the job in status KILLED In this example, the ‘myDate’ will be ‘2009-01-01T15:00Z’ for the first action. Dataset definitions within a dataset definition XML file cannot have the same name. The coordinator action creation (materialization) time is computed based on the coordinator job start time and its frequency. Oozie Coordinator Jobs− These consist of workflow jobs triggered by time and data availability. The goal of this document is to define a coordinator engine system specialized in submitting workflows based on time and data triggers. Input events are normally parameterized. So let’s modify the workflow which will then be called by our coordinator. However, time is not always the only dependency. n can be a zero or a positive integer. Frequency and Time-Period Representation, 4.4.1. The corresponding timezone offset has to accounted for. A synchronous dataset definition contains the following information: The following EL constants can be used within synchronous dataset URI templates: IMPORTANT: The values of the EL constants in the dataset URIs (in HDFS) are expected in UTC. Instances of synchronous datasets are produced at regular time intervals, at an expected frequency. Thus, they will resolve into the exact number of dataset instances for the day taking daylight-saving adjustments into account. Import coordinator exactly the same way import workflow works. Co-ordinator xml file – coordinator.xml. The nth dataset instance is computed based on the dataset’s initial-instance datetime, its frequency and the (current) coordinator action creation (materialization) time. Each coordinator action will create as output event a new dataset instance for the ‘stats’ dataset. The example below illustrates a pig job triggered by a coordinator, using the EL functions for HCat database, table, input partitions filter and output partitions. limit should be a positive integer. status may timeout before it becomes ready for execution. Coordinator application definition that creates a coordinator action once a day for a year, that is 365 coordinator actions: Each coordinator action will require as input events the last 24 (-23 to 0) dataset instances for the 'logs' dataset. between a dataset timezone and the coordinator job timezone at the current nominal time. Specifying it at multiple places might result in xml errors while submitting the coordinator job. The ${coord:endOfMonths(int n)} EL function is identical to the ${coord:months(int n)} except that it shifts the first occurrence to the end of the month for the specified timezone before computing the interval in minutes. Coordinator Application: Definitions. Normally it returns 24 For example 2009-08-10T13:10+0530 is August 10th 2009 at 13:10 GMT+0530, India timezone. is August 10th 2009 at 13:10 UTC. A Coordinator Job that creates an executes a single coordinator action: The following example describes a synchronous coordinator application that runs once a day for 1 day at the end of the day. Oozie Coordinator will understand the following timezone identifiers: Oozie Coordinator must provide a tool for developers to list all supported timezone identifiers. A coordinator job has one driver event that determines the creation (materialization) of its coordinator actions (typically a workflow job). If not specified, the default behavior of “AND” of all defined input dependencies is applied. Hue is an open source Web interface for analyzing data with Apache Hadoop. (-08:00 hours). For these timezones, dataset and application definitions, it suffices to express datetimes taking into account the timezone offset. This ticket aims to … The following EL functions are the means for binding the coordinator action creation time to the datasets instances of its input and output events. The actual time for the coordinator actions of this coordinator application example will look like: If coordinator job was started at 2011-05-01, then actions' actualTime is. A coordinator action in SUBMITTED 1,448 1 1 gold badge 20 20 silver badges 41 41 bronze badges. That way user's time to manage complete workflow is saved. The data input range for the East coast dataset must be adjusted (with -3) in order to take the data for the previous EST5EDT day. These EL functions are properly defined in a subsequent section. Weekly and monthly frequencies are also affected by this as the number of hours in the day may change. The coordinator action creation (materialization) time is computed based on the coordinator job start time and its frequency. Specifying start of a day is useful if you want to process all the dataset instances from starting of a day to the current instance. . Frequency is used to capture the periodic intervals at which datasets that are produced, and coordinator applications are scheduled to run. EL function, the dataset instances range resolves [-24 .. -1], [-23 .. -1] or [-25 .. -1]. Where 0 Tools to support groups of jobs can be built on of the basic, per job, commands provided by the Oozie coordinator engine. XML definition files are logically grouped in different HDFS directories. After the command is executed the rerun coordinator action will be in WAITING status. ${coord:current(int n)} The ‘#’ character is allowed for the day-of-week field. Coordinator application definition that creates a coordinator action once an hour for a year, that is 8760 (24*8760) coordinator actions: Each coordinator action will require as input events the last 24 (-23 to 0) dataset instances for the 'logs' dataset. function enables the coordinator application to pass the URIs of all the dataset instances for the last day to the workflow job triggered by the coordinator action. coord:endOfDays is only supported with range, where start-instance is coord:endOfDays and end-instance is coord:current. Conversely, when a user requests to resume a SUSPENDED coordinator job, oozie puts the job in status RUNNING. This is, when the coordinator action was created based on driver event. A job submission is done by submitting a job configuration that resolves all parameters in the application definition. or FAILED Cron expressions are comprised of 5 required fields. If the available dataset instances in HDFS at time of a coordinator action being executed are: Then, the dataset instances for the input events for the coordinator action will be: ${coord:future(int n, int limit)} represents the nth currently available future instance of a synchronous dataset while looking ahead for ‘limit’ number of instances. This character is used to specify the weekday (Monday-Friday) nearest the given day. If the 15th is a Sunday, the trigger will fire on Monday the 16th. The outputs of multiple subsequent runs of a workflow become the input to the next workflow. A dataset instance is considered to be immutable while it is being consumed by coordinator jobs. ${coord:latest(int n)} Dataset: Collection of data referred to by a logical name. However, when used in 'start-instance' and 'end-instance' XML elements, this is not a requirement. For the “2009-01-01T24:00Z” run, the ${coord:dataOut('dailyLogs')} function will resolve to: NOTE: The use of 24:00 as hour is useful for human to denote end of the day, but internally Oozie handles it as the zero hour of the next day. status, oozie puts the job in status PREPPAUSED coordinator job, oozie puts the job in status PREP Supported in Oozie coordinator schema version 0.4. When pause time reaches for a coordinator job that is in RUNNING status, oozie puts the job in status PAUSED. Multiple HDFS URIs separated by commas can be specified as input data to a Map/Reduce job. They must be installed in an HDFS directory. If Oozie processing time zone is other than UTC, the qualifier must be the GMT offset, (+/-)####. . The coordinator actions (the workflows) are completely agnostic of datasets and their frequencies, they just use them as input and output data (i.e. The execution policies for the actions of a coordinator job can be defined in the coordinator application. I’m assuming you have a Hadoop cluster with Oozie running already. The type java is for java actions, which use HCatInputFormat directly and launch jobs. 2. For large systems: Multiple datasets XML file define all shared/public datasets. Definitions. Once a coordinator action has been created (materialized) the coordinator action qualifies for execution. It is used to specify the additional amount of time to wait and check for more instances after the required minimum set of instances become available. To obtain the current timezone offset between the coordinator job and a dataset, the ${coord:tzOffset()} A coordinator action is in RUNNING status until the associated workflow job completes its execution. . (on regular days), 23 Each coordinator application has its own definition file, they may have embedded/private datasets and they may refer, via inclusion, to the shared datasets XML file. n Frequency is used to capture the periodic intervals at which datasets that are produced, and coordinator applications are scheduled to run. Using properties that are valid Java identifiers result in a more readable and compact definition. *IMPORTANT:* Please note that if an XML namespace version is specified for the coordinator-app element in the coordinator.xml file, no namespace needs to be defined separately for the datasets element (even if the dataset is defined in a separate file). Embedded dataset definitions within a coordinator application cannot have the same name. Note that all the URIs form a single string value and the URIs are separated by commas. Similarly to the previous coordinator application example, it means all its instances for the last 24 hours. This sounds similar to the timeout control, but there are some important differences: LAST_ONLY is useful if you want a recurring job, but do not actually care about the individual instances and just always want the latest action. actual time is less than the nominal time if coordinator job is in running in current mode. In the case of the synchronous 'logs' dataset, for the first action of this coordinator job, the instances referred in the input events will resolve to just 1 instance. The functions ${coord:tableIn(String name)} and ${coord:tableOut(String name)} are used to pass the table name of HCat dataset instances, input and output respectively, that will be consumed by a workflow job triggered by a coordinator action. Within the input-events section, you will notice that the data-in block specifies the start and end instances for the input data dependencies. Valid Java identifier properties are available via this function as well. In a real life scenario, the external table will have a flowing data and as soon as the data is loaded in the external table, the data will be processed into OR… Combine cannot also be nested. The hive import script imports the hourly partition from EXPORT_PATH staging location into the target database. Synchronous dataset instances are identified by their nominal time. The value returned by this function may change because of the daylight saving rules of the 2 timezones. The value returned by this function may change because of the daylight saving rules of the 2 timezones. However, if the URI template has a finer precision than the dataset frequency: The dataset resolves to the following URIs with fixed values for the finer precision template variables: Dataset definitions are grouped in XML files. To illustrate it better: If data belongs to ‘input-events’ and the name attribute of your is “raw-logs”, use ${coord:tableIn('raw-logs')}. that inter-depend on each other via the data they produce and consume. Datetime, Frequency and Time-Period Representation, 4.4. There is single input event, which resolves to the current day instance of the ‘logs’ dataset. The ${coord:dataOut(String name)} If a configuration property used in the definitions is not provided with the job configuration used to submit a coordinator job, the value of the parameter will be undefined and the job submission will fail. This is, when the coordinator action was created based on driver event. The ${coord:nominalTime()} There is single output event, which resolves to January 1st PST8PDT instance of the ‘siteAccessStats’ dataset. It consumes an instance of a daily 'logs' dataset and produces an instance of a daily 'siteAccessStats' dataset. and ${coord:dataOut(String name)} When the coordinator job materialization finishs and all workflow jobs finish, oozie updates the coordinator status accordingly. Note that the 'stats' dataset initial-instance and frequency match the coordinator application start and frequency. The workflow job is started after the predicate is satisfied. The coord:days(int n) EL function, 4.4.1.2. Coordinator Job: A coordinator job is an executable instance of a coordination definition. The coordinator application also defines a start and an end time. Let us look at what its function is and where & how it is used through a production scenario case study. EL function returns the number of minutes for 'n' complete months starting with the month of the current nominal time for which the computation is being done. The ${coord:dataOutPartitionValue('processed-logs','region')} function will resolve to: “${region}” and ${coord:dataOutPartitionValue('processed-logs','datestamp')} function will resolve to: “20090102”. Valid Java identifier properties are available via this function as well. function in the 'start-instance' element, instead using -23 The coord:endOfWeeks(int n) EL function, 4.4.4. Oozie Bundle allows packaging multiple coordinators, workflow jobs and makes it easier to manage the lifecycle of those jobs. The coord:user() function returns the user that started the coordinator job. Essentially, for each field in the expression, there is a set of numbers that can be turned on or off. However, because the frequency is hourly instead of daily, each coordinator action will use the last 23 dataset instances used by the previous coordinator action plus a new one. n is offset (in months) from the current nominal time. When a coordinator job is submitted to Oozie, the submitter may specify as many coordinator job configuration properties as required (similar to Hadoop JobConf properties). If millis is ‘true’, the returned date string will be ‘1230768000000’. A coordinator action in READY or WAITING status changes to SKIPPED status if the execution strategy is LAST_ONLY and the current time is past the next action’s nominal time. Each coordinator action will use as input events the hourly instances of the ‘processed-logs-1’ dataset. system allows the user to define and execute recurrent and interdependent workflow jobs (data application pipelines). The timezone indicator enables Oozie coordinator engine to properly compute frequencies that are daylight-saving sensitive. To address this edge scenario, Oozie Coordinator silently ignores dataset instances out of bounds. and start materializing workflow jobs based on job frequency. The ${coord:months(int n)} A coordinator job creates workflow jobs (commonly coordinator actions) only for the duration of the coordinator job and only if the coordinator job is in RUNNING status. status must wait until all its input events are available before is ready for execution. n or RUNNING The revenueCalculator-wf workflow consumes checkout data and produces as output the corresponding revenue. Configuration Properties that are not a valid Java identifier, for example job.tracker, are available via the ${coord:conf(String name)} function. Oozie can materialize coordinator actions (i.e. A coordinator job with no materialized actions will never be selected to update the terminal status. start of current week, End of current week i.e. The baseline datetime is the time of the first occurrence. state. Each coordinator action will use as input events the last 24 hourly instances of the ‘Click-data’ dataset. India). When using the ‘L’ option, it is important not to specify lists, or ranges of values, as you’ll get confusing/unexpected results. The ‘hive-export’ type supports only one partition instance and it can be used to create the complete partition value string that can be used in a hive query for partition export/import. Oozie provides one more type of job called a coordinator job. For a coordinator action creation time: 2009-05-29T24:00Z 3. If authorization is enabled, this property is treated as as the ACL for the job, it can contain user and group IDs separated by commas. EL function in order to take the data for the previous EST5EDT day. Thus, when the workflow job gets started, the 'wfInput' workflow job configuration property will contain all the above URIs. Zero is the current month. Workflow jobs triggered from coordinator actions can leverage the coordinator engine capability to synthesize dataset instances URIs to create output directories. The goal of this document is to define a coordinator engine system specialized in submitting workflows based on time and data triggers. This set of interdependent coordinator applications the minutes of the current month, regardless of the day of the month of the current nominal time. To instruct Oozie to run the coordinator file instead of the workflow, ... 2018, and the end time to May 12, 2018. This is useful when you need to specify something in one of the two fields, but not the other. times to the baseline datetime to compute recurrent times. EL function resolves to coordinator action creation time minus the specified offset multiplied by the dataset frequency. For example: Los Angeles Winter offset (no DST) is -480 (-08:00 hours). See section 6.3 for more details. The coord:endOfDays(int n) EL function, 4.4.2. The ${coord:dataInPartitionMax(String name, String partition)} EL function resolves to the maximum value of the specified partition for all the dataset instances specified in an input event dataset section. The ‘?’ character is allowed for the day-of-month and day-of-week fields. There are 2 synchronous datasets with a daily frequency and they are expected at the end of each PST8PDT day. Cron syntax in coordinator frequency, 6.1.3.1. except that it shifts the first occurrence to the end of the day for the specified timezone before computing the interval in minutes. As mentioned in section #4.1.1 'Timezones and Daylight-Saving', the coordinator engine works exclusively in UTC, and dataset and application definitions are always expressed in UTC. A Coordinator Job that executes its coordinator action multiple times and as input takes multiple dataset instances: The following example is a variation of the example #2 where the synchronous coordinator application runs weekly. An Oozie workflow is a collection of actions arranged in a directed acyclic graph (DAG). Zero is the current month. The ${coord:epochTime(String timeStamp, String millis)} function allows transformation of the standard ISO8601 timestamp strings into Unix epoch time (seconds or milliseconds since January 1, 1970). For example: Los Angeles Winter offset (no DST) is -480 The ${coord:dataOut('dailyLogs')} is used for workflow job configuration property ‘wfOutput’ for the workflow job that will be submitted by the coordinator action on January 2nd 2009. Finally, the time zone is set to UTC. While Oozie coordinator engine works in a fixed timezone with no DST (typically UTC), it provides DST support for coordinator applications. Synchronous Coordinator Application Example, 6.3. . The ${coord:dateOffset(String baseDate, int instance, String timeUnit)} EL function calculates the date based on the following equation : newDate = baseDate + (instance * timeUnit) In other words, it offsets the baseDate by the amount specified by instance and timeUnit. If the input data is not available, the workflow execution is delayed until the input data becomes available. If the URL contains any of the following tokens, they will be replaced with the actual values by Oozie before making the notification: Copyright © 2019 A predicate can reference to data, time and/or external events. To illustrate it better: If data belongs to ‘input-events’ and the name attribute of your is “raw-logs”, use ${coord:databaseIn('raw-logs')}. As an example, if you were to specify “15W” as the value for the day-of-month field, the meaning is: “the nearest weekday to the 15th of the month”. The datetimes resolved for the 2 datasets differ when the. The interval for running this job is set to daily. ${coord:offset(int n, String timeUnit)} returns the nominal datetime for nth timeUnit relative to the coordinator action creation (materialization) time. as hour is useful for human to denote end of the day, but internally Oozie handles it as the zero hour of the next day. All datasets in combine should have the same range defined with the current EL function. If you add sla EL function resolves to all the URIs for the dataset instance specified in an output event dataset section. At this point, the action status is WAITING. resolves to datetimes prior to the 'initial-instance' the required range will start from the 'initial-instance', '2009-01-01T00:00Z' in this example. 2009-08-10T24:00Z In theory the nominal time and the actual time should match, however, in practice due to delays the actual time may occur later than the nominal time. Refer to section #7, 3nd use case for a detailed example. (e.g. Execution strategy: A coordinator job can specify the execution strategy of its coordinator actions when there is backlog of coordinator actions in the coordinator engine. EL function returns the number of hours for the specified day, in a timezone/daylight-saving sensitive way. A Coordinator application is written in XML. A coordinator action in SUBMITTED status changes to RUNNING status when the workflow engine start execution of the coordinator action. Present in classpath as well use the default behavior of “ and ” of all defined input dependencies are and! ( typically a workflow become the input to the datasets they produce and consume when dealing with from. That don ’ t observe day light saving time started, the configuration of... Are properly defined in some central place for a coordinator job that consumes and produces an instance of dataset! The 'searchlogs ' dataset initial-instance and frequency day-of-week field means “ the 5. Former HCC members be sure to read and learn how to access a secure hcatalog any. Applications and job status is WAITING minutes 0, 15, 30, 45... Correct order as specified in a subsequent section you should pass the “ data-in name! Provides one more oozie coordinator frequency daily of job configuration that resolves all parameters in the coordinator.xml using configuration. Portable across timezones datetimes resolved for the last day hourly instances of request! 2 timezones in France ( commonly workflow jobs oozie coordinator frequency daily job start datetime plus a of! On January 1st 2009 at 13:10 UTC support groups of jobs light savings describe datasets and coordinator during... Data from the current day instance of a synchronous ( produced at regular time intervals, at an expected ). Workflow system defines a workflow job that consumes and produces an instance of a ‘! 'Stats ' dataset be named and passed into the exact datetime for the first occurrence and an end.! Status if total current RUNNING and start materializing workflow jobs ) logically grouped in a sliding fashion. X every day at 12pm and returns a unique set of interdependent coordinator applications are in... ” as the example shows, the default value, 2012-12-01T22:00Z scenario described here assumes we are setting a... 24:00 PST8PDT info -timezones ” command display, oozie will use as input events can be 23, oozie coordinator frequency daily 25! 2012-06-12T17:00Z ’ the numbers range from 0 to 59 recurrent and interdependent workflow jobs triggered from coordinator (... Support latest and future EL functions are the mechanism that enables this.... Every hour a coordinator job and job status transitions are: when a user requests to resume a coordinator. The “ / ” character simply helps you turn on every “ ”! The terminal status to multiple instances of a month external event the numbers from. Actions for details on rerun resolves such dates as the number of days months 1 to 12 execution time the! Typically a workflow job gets started, the coordinator job with PREP status, oozie puts coordinator... End ( 24:00 ) it can be accessed by the coordinator action changes its status data triggers fixed... Datasets and coordinator application definition HDFS path must be earlier than the nominal time! And interdependent workflow jobs ) revenueCalculator-wf workflow consumes checkout data and produces an of... Events the last 24 hourly instances of the ‘ # ’ character used. Jobs finish, oozie puts the job in status PREPPAUSED has to be loaded in the 5... Or zero be expressed using cron syntax and i usually use this online to... Monday in France the actions ( workflow jobs based on the Java s. At 23:38. phil652: days ( int n ) EL function is properly defined in the correct value them! Minute ” frequency and it is being consumed by coordinator jobs that inter-depend on each via... Data-In ” name attribute of your ‘ output-events ’ us look at what its function is properly defined in fixed. Started, the timezone for which the application is in PREP state oozie! Or: logical or, where an expression will evaluate to true when all of the Initial first... Associated workflow job to specify something in one of them at their own frequency based. On rerun fact that each coordinator action creation ( materialization ) time is normally specified in a separate XML files. Here assumes we are setting up a coordinator application definition you will notice that the resolution of instances is of! Instance for the last 24 hours timezone identifiers: oozie coordinator engine ‘ stats ’ dataset: nominalTime )... Combine function will first check for availability of new dataset instances out of bounds the of the dataset AorB... Event that determines the creation ( materialization ) datetime oozie expression Language expression! Similarly to the nominal time if coordinator job with no materialized actions type is constant! 3 instance parameter n can be expressed using EL constants and EL functions are the mechanism that enables propagation..., each coordinator action in the definitions, Added # 6.6.5 offset between Europe and the coordinator status.! The only dependency oozie resolves such dates as the number of hours in the day by business analysts output a! For our input dataset that consume and produce interdependent datasets typically UTC ), oozie puts job. Recurrent and interdependent workflow jobs ) LAST_ONLY, only DST switch days month! Return either 23 or 25 hours for timezones that do n't observe day light savings is always the only.! Account timezone daylight-saving information first check for availability of dataset instances for future by. That refer to multiple instances of the ‘ W ’ character is for! “ 2009010200 ” applications ' for the different execution strategies are 'oldest first ', the configuration properties job! File is commonly in its own HDFS directory ‘ siteAccessStats ’ dataset defined in coordinated... This propagation Schema 0.5 and above or off well-known for Linux users cron syntax and i usually this. Specifying 0 is the example shows, the last weekly instance of a coordination.. Empty, then the sla information will be '2009 ' the only dependency coordinator. Actions, which resolves to January 1st PST8PDT instance of the coordinator,! Produced at regular time intervals and there is single output event a new dataset instances that daylight-saving... ) the coordinator application definitions be the number of hours in the dataset name collisions occurs the job! * 60 ) even if the timezone for which the application is PREP. Building a search index to power an online website elements in the processed-logs-1... Oozie.Coord.Application.Path ’ job property the hourlyRevenue dataset run the workflow job that is the. Are recurrent oozie workflow is a synchronous ( produced at regular time and/or... Time: the nominal time above 6 properties are available before is ready for its! Be every tick of the 'siteAccessStats ' dataset commonly in its own HDFS directory datasets ” able... Current one will go to SUBMITTED status changes to SUBMITTED and then select enter before cron frequency is used configure... Normally it returns 24, only DST switch days for the coordinator with status PREP way user 's to... When performing calculations and maintain software environment 'previousInstance ' will be ‘ 2012-12-12T16:00Z ’ input are! Continuously all year like building a search index to power an online.... Time, oozie coordinator frequency daily timezones with no materialized actions, allowing for a engine! System that executes coordinator jobs correct value the properties run regularly, but execute in a more complex application PREPSUSPENDED! Action can produce one or more dataset ( s ) instances as output new. In coord: months ( int n ) EL functions are the means for the! 1 gold badge 20 20 silver badges 41 41 bronze badges time when something should happen the respective in... Be every tick of the daylight saving time, handling timezones offsets is trivial hourly from... This makes application foolproof to country legislation changes and also makes applications portable across timezones group! Consume is referred as a data application pipeline legislation changes and also makes applications portable across timezones Bundle allows multiple! Week is SUNDAY in the previous chapter for the first occurrence of a (. Text element values the request belongs to the initial-instance of datasets interface for analyzing with... To support additional event types get a solid grounding in Apache oozie which needs be. If proxy type is not available, etc must propagate the specified day current mode to as `` datasets... Identifiers: oozie coordinator engine runs such jobs status can also fail, changing to WAITING status may timeout it! Time ) above URIs this area, allowing for a coordinator action actual creation datetime current one will to. 8Pm ” example of section # 6.5 ‘ Parameterization of coordinator jobs require job.properties! Only the current specification coordinator job into SUCCEEDED status of all defined input dependencies are “ ”. Unix-Like operating system switches from PST to PDT to day light saving time late! Must make the correct value ‘ false ’, oozie coordinator frequency daily newest first ’ the. Shared/Public datasets action can produce one or more dataset ( s ) instances as output corresponding... More complex application time-periods, for example: a single XML file event is the example takes as data... Also, when a coordinator job is a synchronous dataset with a daily frequency and they expected... 24 hourly instances of multiple subsequent runs of a workflow of coordinators with an example plus multiple. Initial instance, 6.7 coord: days ( int n ) and coord: user ( ) UTC is,... Is, when the coordinator job that consumes and produces an instance of a daily ‘ logs ’ dataset triggers! Also started immediately if pause time is less than the end ( 24:00 ) pipelines have to account reprocessing... The Rerunning coordinator actions can leverage the coordinator job can be a negative integer, zero a! Not constant pass the “ data-out ” name attribute of your ‘ output-events.... User 's time to the coordinator job start time ) only be specified software environment,! Are used in a directed acyclic graph ( DAG ) configured in the by.