[QPID-6757] [linearstore] Add qpid-txtest mode to qpid-qls-analyze which extracts message number from message body

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: qpid-cpp-1.35.0
• Component/s: C++ Tools
• Assignee: Kim van der Riet
• Reporter: Kim van der Riet
• Created: 25/Sep/15 14:09
• Updated: 06/Sep/16 21:32
• Resolved: 29/Sep/15 21:44

Description

When analysing linearstore journals using qpid-qls-analyze, it would be useful to be able to see the message number which this test inserts into the message body. When qpid-txtest fails, it reports these message numbers when they are either missing or duplicated.

To be able to usefully analyze a journal from this test, it is necessary to be able to view this message number. However, qpid-qls-analyze does not have any mechanism to display the message content except as part of a binary dump of which only the first and last 10 bytes are displayed with an ellipsis:

data(164)='\00\00\00p\0b\01\00\15\00\01 ... MNOPQRSTUV'

By adding a command-line flag --txtest, qpid-qls-analyze would search the data for the string "msg-" and display the message number:

data(164)='msg-1086'

which is embedded in the binary and would normally be difficult to recover.