Database Administration (MOSC)

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ORA-60 deadlock detected

edited Nov 19, 2019 9:23AM in Database Administration (MOSC) 11 commentsAnswered ✓

Hello Gurus,

I'm getting these deadlocks in the DB. It looks like its due to unindexed FK but not really sure which FK is that . The table YYY is a child table to table XXX and the reference column is indexed.

Deadlock graph:

                                          ---------Blocker(s)--------  ---------Waiter(s)---------

Resource Name                             process session holds waits  process session holds waits

TM-000187F6-00000000-00000003-00000000        224    2033    SX            295     450    SX   SSX

TX-00760015-0006EBAC-00000000-00000000        295     450     X            224    2033           X

session 2033: DID 0001-00E0-0036131D    session 450: DID 0001-0127-002C08C2

session 450: DID 0001-0127-002C08C2     session 2033: DID 0001-00E0-0036131D

client details:

    O/S info: user: jboss, term: unknown, ospid: 1234

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