Description of problem:
Please backport QPID-6551 to 3.0.*.


Version-Release number of selected component (if applicable):
qpid-cpp-server-linearstore-0.22-51


How reproducible:
100%


Steps to Reproduce:
qpidd --efp-file-size=32 --log-to-file=/tmp/qpidd.log &
# --efp-file-size just for faster reproducer
qpid-txtest --dtx=yes --check=no --init=yes --tx-count=10 --total-messages=1000 --size=1
nohup qpid-txtest --dtx=yes --check=no --init=no --tx-count=200000 --size=1 &

now wait 1-2 hours until the nohup finishes


Actual results:
- Latest command fails
- qpidd logs exception:
jexception 0x0500 LinearFileController::find() threw JERR_LFCR_SEQNUMNOTFOUND: File sequence number not found (fileSeqNumber=0)


followed by various other journal exceptions.


Expected results:
- Latest command succeeds
- qpid-stat -q shows 2M enqueues and 2M dequeues in both queues tx-test-1 and tx-test-2 (just to confirm all transactions were executed)


Additional info:
Backport https://svn.apache.org/r1680861.