FBSVCMGR with `action_trace_start` prevents in 3.0 SuperServer from connecting
using local protocol (in particularly, prevents from doing NBACKUP)
--------------------------------------------------------------------------------------------------------------------------------------------------
Key: CORE-4889
URL: http://tracker.firebirdsql.org/browse/CORE-4889
Project: Firebird Core
Issue Type: Bug
Components: Engine, NBACKUP, SVCMGR
Affects Versions: 3.0 RC 1
Environment: LI-V3.0.0.31942, SuperServer only.
Reporter: Pavel Zotov
window #1:
==========
launch fbsvcmgr in order to trace FB 3.0 SS activity:
/opt/fb30ss/bin/fbsvcmgr localhost/3333:service_mgr user SYSDBA password
masterke action_trace_start trc_cfg ./fb30ss_trace.conf
window #2:
==========
Doing with isql only:
game-1:
~~~~~~
/opt/fb30ss/bin/isql localhost/3333:/var/db/fb30/e30.fdb -- OK, it works
quit;
/opt/fb30ss/bin/isql /var/db/fb30/e30.fdb -- OK, it works
Now restart FB and launch again fbsvcmgr in session #1, than return to window
#2 and continue:
game-2:
~~~~~~~
/opt/fb30ss/bin/isql /var/db/fb30/e30.fdb
Result: isql will HANG (no matter of was messages about detaching from sec3.fdb
appeared in trace window or no).
Now restart FB and launch again fbsvcmgr in session #1, than return to window
#2 and continue.
Doing with nbackup (which should use only LOCAL protocol, otherwise we get
"PROBLEM ON "nbackup needs local access to database file" / SQLCODE:-999"):
game-3:
~~~~~~~
/opt/fb30ss/bin/nbackup -b 0 /var/db/fb30/e30.fdb ./tmpnbk.nbk0
Result: nbackup will HANG.
This occur only when FB-3 runs in SS architecture.
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