DWW840I date time THE SYSTEM LOGGER RETURNED AN ALERT DURING OPERATION {IXGCONN CONNECT | IXGWRITE} FOR LOG STREAM logstream. THE LOG STREAM {DATA SET DIRECTORY IS FULL | WRITER OFFLOAD TASK IS FAILING | STAGING DATA SET FAILED}. SYSTEM LOGGER RETURN CODE rc REASON CODE rsnc

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CICS® VR detected a warning while attempting to access a log stream. One of the following occurred:
  1. The log stream's data set directory is full.
  2. The log stream writer offload task is failing.
  3. The log stream staging data set failed.
In the message text:
date
The current date.
time
The current time.
logstream
The name of the log stream.
rc
The system logger return code.
rsnc
The system logger reason code.

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CICS VR continues normal operation until the current data set or structure of the log stream becomes full. When this happens message DWW839I is issued. If the staging data set has failed, CICS VR continues normal operation, but the data written to the log stream structure is not being duplexed. Consequently, if the structure (or coupling facility) fails, the data cannot be recovered.

Operator response

CICS VR continues normal operation until the current data set or structure of the log stream becomes full. When this happens message DWW839I is issued. If the staging data set has failed, CICS VR continues normal operation, but the data written to the log stream structure is not being duplexed. Consequently, if the structure (or coupling facility) fails, the data cannot be recovered. See z/OS® MVS Programming: Assembler Services Reference. Then do one of the following:
  1. If the log stream's data set directory is full, delete data from the log stream tail before the current data set fills up. You might want to take a copy of the data before deleting it.
  2. If the log stream writer offload task is failing, investigate and fix the failing log stream writer offload task (part of the system logger) before the log stream structure in the coupling facility fills up.
  3. If the staging data set has failed, IBM® recommends that you terminate batch logging as soon as possible. You should investigate and fix the failing log stream, without losing the data.
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