Ticket History #5888: more tests for libdb btree page split on zero index

Enhance btree debugging output somewhat to limit key printout to the
key length if the key is not null-terminated.

Add additional test case for the zero-index page split bug; test case
can create a corrupted btree database with records unreachable by
random access but reachable by sequential access. Requires
recompiling with CPPFLAGS='-DDEBUG -DDEBUG_IDX0SPLIT' to correctly
model mpool page reuse that would be present in production conditions.
(CPPFLAGS=-DDEBUG would otherwise explicitly overwrite the contents of
reused pages.)


Commit By: tlyu



Revision: 20222
Changed Files:
_U trunk/
U trunk/src/plugins/kdb/db2/libdb2/btree/bt_debug.c
U trunk/src/plugins/kdb/db2/libdb2/mpool/mpool.c
U trunk/src/plugins/kdb/db2/libdb2/test/run.test

pull up r20222 from trunk

r20222@cathode-dark-space: tlyu | 2008-02-07 02:07:06 -0500
ticket: new
target_version: 1.6.4
tags: pullup
subject: more tests for libdb btree page split on zero index
component: krb5-kdc

Enhance btree debugging output somewhat to limit key printout to the
key length if the key is not null-terminated.

Add additional test case for the zero-index page split bug; test case
can create a corrupted btree database with records unreachable by
random access but reachable by sequential access. Requires
recompiling with CPPFLAGS='-DDEBUG -DDEBUG_IDX0SPLIT' to correctly
model mpool page reuse that would be present in production conditions.
(CPPFLAGS=-DDEBUG would otherwise explicitly overwrite the contents of
reused pages.)




Commit By: tlyu



Revision: 20233
Changed Files:
_U branches/krb5-1-6/
U branches/krb5-1-6/src/plugins/kdb/db2/libdb2/btree/bt_debug.c
U branches/krb5-1-6/src/plugins/kdb/db2/libdb2/mpool/mpool.c
U branches/krb5-1-6/src/plugins/kdb/db2/libdb2/test/run.test