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Added common (formated) timestamp function(s). Made use of
these in the verbosity module (for debug printouts) and in
the test suite(s).
I also *think* I found the cause for some if the test case
failures (timeouts).
For v3 (agent) test cases the test manager makes use of parts
of the agent code: snmp_framework_mib and snmp_user_based_sm_mib.
And since they store their data in snmpa_local_db, that also
needs to be running.
And this was the problem (I think). On some (slow) machines,
the snmpa_local_db process from the *previous* test case
might still be running when the we tried to start it. That meant
that no new snmpa_local_db was started. Instead the old one,
still running but terminating, was retain. For a while. Until
it actually finally stopped. So the next operation towards
snmpa_local_db, insert, simply hanged until the process
terminated.
This in combination with the fact that the packet server process,
which was started using proc_lib, previously called init_ack
before this init was actually done, could actually start and then
at a much later time hang because some operation timed out
(the packet server was hanging).
Yuckety yuck-yuck.
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Improved test printouts (more with timestamps), also
fixed the printouts of the (fake) local-db start
result printout.
Also updated the copyright end-dates.
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The agent test manager had a bug during start that could
potentially cause deadlock, but atleast could cause test
cases to fail because of timeouts. The test manager
(actually the "packet server") used proc_lib to start the
process but it called the init_ack function before the init
was actually complete. This was only a problem for v3 cases
(where it did a bunch of further inits, including starting
the local-db process).
Also did debug/verbosity tweaking. Added a bunch of debug
(verbosity) printouts for the agent test manager "packet server"
during v3 init. Also made sure we could distinguish the
"normal" local-db from the one used by the test manager
(this is done by using a new short-name).
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Also fixed copyright end date.
OTP-11352
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Add {db_init_error, create_db_and_dir} option to SNMP manager and
agent. This allows them to create any missing parent directories for
db_dir, rather than treating any missing directories as a fatal error.
The default for db_init_error, which is terminate, is unchanged.
Add create_db_and_dir to the documentation.
Add new tests to verify that using create_db_and_dir results in missing
parent directories being created.
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The counter increment function in the local-db was incorrect.
It did not handle counter wrap correctly.
OTP-11192
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Conflicts:
lib/snmp/doc/src/notes.xml
lib/snmp/doc/src/snmpa.xml
lib/snmp/src/agent/snmpa_mpd.erl
lib/snmp/src/app/snmp.appup.src
lib/snmp/test/snmp_agent_test.erl
lib/snmp/vsn.mk
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Added a backup check also for local_db (same as for the
mib-server). Updated appup and set proper version (vsn.mk).
Finally added test case for issue.
OTP-9884
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OTP-9783
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