SAS Companion for the OpenVMS Operating Environment

Concurrency Engine

ERROR: Creating files with concurrency engine requires version limit greater than one

Severity Level: error

When a concurrency engine data set is created, there is a brief span of time when two versions of the file exist. If you can keep only one version of a file, you cannot use the concurrency engine. See your system manager for information on increasing your version limit.

ERROR: Observation length greater than maximum length of 32,255 for concurrency engine

Severity Level: error

Observations in a concurrency engine data set cannot be greater than 32,255 bytes (32K) because of the restrictions of the RMS relative file format. Correct your program and resubmit it.

ERROR: Node specification not allowed with concurrency engine for update access

Severity Level: error

The concurrency engine does not support update access on a remote node. Note that the concurrency engine allows a node specification in the LIBNAME statement (that is, it allows DECnet access) when the data set is opened for input or output, but not for update.

ERROR: Requested function not performed because there is no current record on (libref-datasetname). Probably the last read failed.

Severity Level: error

This is a limitation of the CONCUR engine. An attempt to update an observation in a CONCUR data set with the MODIFY statement fails when an earlier observation in the same data set is locked by another process.

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