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The Override with Database File (OVRDBF) command is used to (1) override (replace) the file named in the program, (2) override certain parameters of a file that are used by the program, or (3) override the file named in the program and override certain parameters of the file being processed.

All open operations done at a call level that is the same as or higher than the current call level are influenced by this override. Rcd format selector program name Specify the name of the selection program. Cannot find Oozie Workflows Editor in Hue 4.

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Other parameters, such as SEQONLY, still affect how the data is retrieved from each system, and this parameter controls how all the data is managed when accessing a distributed file.

This parameter overrides the distributed file data retrieval method selected by the system, or specified in other previously issued OVRDBF commands. Because of this override, any subsequent opens of this file within the routing step share the ODP for the file. Conditional Parameters Examples Error messages The Override with Database File OVRDBF command is used to 1 override replace the file named in the program, 2 override certain parameters of a file that are used by the program, or 3 override the file named in the program and override certain parameters of the file being processed.

In a multithreaded job, this command may only be issued from the initial thread. In a multithreaded job, only Activation Group or Job scoped overrides will affect opens performed in a secondary thread. Qualified object name Optional, Positional 2 Qualifier 1: Overriding to data base file Name Qualifier 2: Element list Optional Element 1: Record format Name Element 2: Rcd format selector program Name Qualifier 2: File being overridden FILE Specifies the file in the using program to which this override command is applied.

This is a required parameter. Overriding to data base file name Specify the name of the database file that is used instead of the file specified in the FILE parameter. If no library is specified as the current library, QGPL is used.

Overriding member MBR Specifies the members used within the database file. All members are opened with the same override parameters as the first member. Overrides issued prior to the open of the first member are processed, but overrides or delete overrides issued following the open of the first member are not processed.

An escape message is sent if any of the mutually exclusive parameters are specified. If a read-previous record operation is specified in the program, an end-of-file condition occurs. When the next record is read, an end-of-file condition is reached. If a read previous record operation is requested, the last record of the file is read.

If no record matches those values, the record that matches the largest previous value is selected. If a read-previous record operation is specified in the program, the preceding record is read.

If there is no record that matches those values, the record with the next highest value is selected. If a read-previous record operation is requested, the th record in the file is read. The number of fields specified does not have to be the same as the actual number of fields in each key for the file. If you specify a key value of zero, the search is based on all key fields. If zero is used, the key value contains the maximum key size.

If it does not, no match occurs. If no record format name is specified, all record formats are searched for the first record that matches the other search values. The key value is specified as a character string enclosed in apostrophes for character or positive zoned decimal formats, or is specified in hexadecimal form x'value'. You can specify up to characters in the character string. The system searches for a record from the record format FMT2.

A single key field is used in the search even though the key value may have more key fields. The record contains the hexadecimal value F the hexadecimal equivalent of packed decimal value You get this record when it is found. The following example shows the lock states that are specified for each record format and the operations allowed to other programs when the lock is in effect: You can specify 32 values for this parameter.

Record format name Specify the name of record format. Lock state lock-state Specify one of the lock state values from the above table. Records to force a write FRCRATIO Specifies the number of insert, delete, or update operations that can occur on records before those records are forced into auxiliary permanent storage. If a physical file associated with this database file is recorded in a journal, specify a larger force-write ratio.

Rcd format selector program FMTSLR Specifies the record format selection program that is called when a logical file member contains more than one logical record format. Rcd format selector program name Specify the name of the selection program.

If no current library entry exists in the library list, QGPL is used. Maximum file wait time WAITFILE Specifies the number of seconds that the program waits for the file resources to be allocated when the file is opened, or the device or session resources to be allocated when an acquire operation is performed to the file.

When the file is opened, an immediate allocation of the file resources is attempted. Valid values range from 1 through seconds.

An immediate lock of the record is obtained when the record is read. Valid values range from 1 through Write a record to the specified file which is recognized by the application program as a last record. The application program may then do a force end of data FEOD to start the end-of-file processing or close the file. The DELAY parameter time specified must allow for the EOFDLY time to run out, plus time to process any new records that may have been added to the file, and any end-of-file processing that is done in the user's application.

The end-of-file is set by database, and a normal end-of-file condition occurs after new records are retrieved. If the job is interactive, start a system request and end the previous request. Record format level check LVLCHK Specifies whether the level identifiers for the record formats of the database file are checked when the file is opened by a program. If the current date is later than the expiration date, an escape message is sent to the program. They are written only to an output device.

In that case, an escape message is sent to the program. Its values are overridden by the effects of any file override commands that were previously called. When the activation group is the default activation group, the scope equals the call level of the calling program.

When the activation group is not the default activation group, the scope equals the activation group of the calling program. All open operations done at a call level that is the same as or higher than the current call level are influenced by this override. A new ODP for the file is created and used every time a program opens the file.

This includes several open operations in the same program. If the activation group is the default activation group, the scope is the call level of the caller. If the activation group is a non-default activation group, the scope is the activation group of the caller. Limit to sequential only SEQONLY Specifies, for database files whose records are processed in sequential order only, whether sequential only processing is used on the file.

The program opened the member for other than input or output. The member opened by the program for output is based on many other members. The record length plus the feedback area sum exceeded 32, bytes.

A default value for the number of records transferred as a group is determined by the system based on how the file is used, the type of access path involved, and the file's record length: The default is approximately the number of records that fit in an internal buffer of 4K for: All database files opened for input only Physical files opened for output that are only processed in either arrival sequence or in non-unique keyed sequence and that have no logical file members based on them The default is 1 record for: All logical files opened for output only Physical files opened for output only that either have unique keyed sequence access paths or have at least one dependent logical file with a keyed sequence access path that does not share the access path of the keyed physical file member Element 2: On HiveServer2, we are seeing logs of this type correlating with the above errors:.

We started having this problem while running 3. Upgrading Hue to 3. Our current understading is that under some conditions a network connection between Hue and HiveServer2 used by thrift calls gets closed and this causes the corresponding Hive session to get dropped, as per behaviour introduced in HIVE This makes all related operations unavailable.

Waiting for a solution or upgrade on the Hive side, we are investigating if anything in the setup or code of Hue can avoid or mitigate the problem.

We can still reproduce it by stopping and restarting the service, which causes messages "Session disconnected without closing properly, close it now" to appear in HiveServer2 logs.

Probably the lifecycle of wsgi processes under apache causes transport connections to be closed every now and then, triggering the deletion of session data on HiveServer2's side. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

On HiveServer2, we are seeing logs of this type correlating with the above errors: Does anybody have a fix or work-around for this behaviour? Message 1 of 6 3, Views. Are you using the Hive from CDH or somewhere else? Message 2 of 6 3, Views. We use Hue from master and Hive from another provider. We can show the problem with the following commands in hue shell: