TMF Application Programmer's Guide (H06.06+, J06.03+)

File System Procedures

HP NonStop TMF Application Programmer’s Guide—540139-009

4-52

Usage Considerations

to TMF_JOIN_EXT_ is issued, the call is rejected with file system error

FETOOMANYTRANSBEGINS (too many transactions).

If the calling process is the primary process of a process pair and the TFILE is being

checkpointed, the calling process should checkpoint the TFILE after calling

TMF_JOIN_EXT_ to modify the backup process' TFILE.

If the calling process has not relinquished control of a joined transaction by issuing a

TMF_SUSPEND_EXT call, one of the following takes place when the process that

initiated the transaction calls ENDTRANSACTION:



If the calling process is on the beginner's node, then a retry error

FEJOINOUTSTANDING will be returned.



If the calling process is on a remote node, the transaction will be aborted, and

FETRANSABORTED will be returned.

Note. If the Joiners CPU fails while the join is active, the transaction is aborted with abort

flags set to AbortDueToServerFailure.