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# See the file LICENSE for redistribution information.
#
# Copyright (c) 2005,2007 Oracle. All rights reserved.
#
# $Id: test114.tcl,v 12.12 2007/05/17 15:15:56 bostic Exp $
#
# TEST test114
# TEST Test database compaction with overflows.
# TEST
# TEST Populate a database. Remove a high proportion of entries.
# TEST Dump and save contents. Compact the database, dump again,
# TEST and make sure we still have the same contents.
# TEST Add back some entries, delete more entries (this time by
# TEST cursor), dump, compact, and do the before/after check again.
proc test114 { method {nentries 10000} {tnum "114"} args } {
source ./include.tcl
global alphabet
# Compaction is an option for btree and recno databases only.
if { [is_hash $method] == 1 || [is_queue $method] == 1 } {
puts "Skipping test$tnum for method $method."
return
}
# We run with a small page size to force overflows. Skip
# testing for specified page size.
set pgindex [lsearch -exact $args "-pagesize"]
if { $pgindex != -1 } {
puts "Test$tnum: Skipping for specific pagesize."
return
}
set args [convert_args $method $args]
set omethod [convert_method $method]
# If we are using an env, then testfile should just be the db name.
# Otherwise it is the test directory and the name.
set txnenv 0
set eindex [lsearch -exact $args "-env"]
if { $eindex == -1 } {
set basename $testdir/test$tnum
set env NULL
} else {
set basename test$tnum
incr eindex
set env [lindex $args $eindex]
set rpcenv [is_rpcenv $env]
if { $rpcenv == 1 } {
puts "Test$tnum: skipping for RPC"
return
}
set txnenv [is_txnenv $env]
if { $txnenv == 1 } {
append args " -auto_commit"
}
set testdir [get_home $env]
}
puts "Test$tnum: ($method $args) Database compaction with overflows."
set t1 $testdir/t1
set t2 $testdir/t2
set splitopts { "" "-revsplitoff" }
set txn ""
if { [is_record_based $method] == 1 } {
set checkfunc test001_recno.check
} else {
set checkfunc test001.check
}
foreach splitopt $splitopts {
set testfile $basename.db
if { $splitopt == "-revsplitoff" } {
set testfile $basename.rev.db
if { [is_record_based $method] == 1 } {
puts "Skipping\
-revsplitoff option for method $method."
continue
}
}
set did [open $dict]
if { $env != "NULL" } {
set testdir [get_home $env]
}
cleanup $testdir $env
puts "\tTest$tnum.a: Create and populate database ($splitopt)."
set pagesize 512
set db [eval {berkdb_open -create -pagesize $pagesize \
-mode 0644} $splitopt $args $omethod $testfile]
error_check_good dbopen [is_valid_db $db] TRUE
set count 0
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
while { [gets $did str] != -1 && $count < $nentries } {
if { [is_record_based $method] == 1 } {
set key [expr $count + 1]
} else {
set key $str
}
set str [repeat $alphabet 100]
set ret [eval \
{$db put} $txn {$key [chop_data $method $str]}]
error_check_good put $ret 0
incr count
}
if { $txnenv == 1 } {
error_check_good txn_commit [$t commit] 0
}
close $did
error_check_good db_sync [$db sync] 0
if { $env != "NULL" } {
set testdir [get_home $env]
set filename $testdir/$testfile
} else {
set filename $testfile
}
set size1 [file size $filename]
set free1 [stat_field $db stat "Pages on freelist"]
puts "\tTest$tnum.b: Delete most entries from database."
set did [open $dict]
set count [expr $nentries - 1]
set n 57
# Leave every nth item. Since rrecno renumbers, we
# delete starting at nentries and working down to 0.
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
while { [gets $did str] != -1 && $count > 0 } {
if { [is_record_based $method] == 1 } {
set key [expr $count + 1]
} else {
set key $str
}
if { [expr $count % $n] != 0 } {
set ret [eval {$db del} $txn {$key}]
error_check_good del $ret 0
}
incr count -1
}
if { $txnenv == 1 } {
error_check_good t_commit [$t commit] 0
}
error_check_good db_sync [$db sync] 0
puts "\tTest$tnum.c: Do a dump_file on contents."
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
dump_file $db $txn $t1
if { $txnenv == 1 } {
error_check_good txn_commit [$t commit] 0
}
puts "\tTest$tnum.d: Compact and verify database."
set ret [$db compact -freespace]
error_check_good db_sync [$db sync] 0
error_check_good verify_dir [verify_dir $testdir] 0
set size2 [file size $filename]
set free2 [stat_field $db stat "Pages on freelist"]
# Reduction in on-disk size should be substantial.
set reduction .80
error_check_good \
file_size [expr [expr $size1 * $reduction] > $size2] 1
# Pages should be freed for all methods except maybe
# record-based non-queue methods. Even with recno, the
# number of free pages may not decline.
if { [is_record_based $method] == 1 } {
error_check_good pages_freed [expr $free2 >= $free1] 1
} else {
error_check_good pages_freed [expr $free2 > $free1] 1
}
puts "\tTest$tnum.e: Contents are the same after compaction."
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
dump_file $db $txn $t2
if { $txnenv == 1 } {
error_check_good txn_commit [$t commit] 0
}
error_check_good filecmp [filecmp $t1 $t2] 0
puts "\tTest$tnum.f: Add more entries to database."
# Use integers as keys instead of strings, just to mix it up
# a little.
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
for { set i 1 } { $i < $nentries } { incr i } {
set key $i
set str [repeat $alphabet 100]
set ret [eval \
{$db put} $txn {$key [chop_data $method $str]}]
error_check_good put $ret 0
}
if { $txnenv == 1 } {
error_check_good t_commit [$t commit] 0
}
error_check_good db_sync [$db sync] 0
set size3 [file size $filename]
set free3 [stat_field $db stat "Pages on freelist"]
puts "\tTest$tnum.g: Remove more entries, this time by cursor."
set count 0
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
set dbc [eval {$db cursor} $txn]
# Leave every nth item.
for { set dbt [$dbc get -first] } { [llength $dbt] > 0 }\
{ set dbt [$dbc get -next] ; incr count } {
if { [expr $count % $n] != 0 } {
error_check_good dbc_del [$dbc del] 0
}
}
error_check_good cursor_close [$dbc close] 0
if { $txnenv == 1 } {
error_check_good t_commit [$t commit] 0
}
error_check_good db_sync [$db sync] 0
puts "\tTest$tnum.h: Save contents."
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
dump_file $db $txn $t1
if { $txnenv == 1 } {
error_check_good t_commit [$t commit] 0
}
puts "\tTest$tnum.i: Compact and verify database again."
set ret [$db compact -freespace]
error_check_good db_sync [$db sync] 0
error_check_good verify_dir [verify_dir $testdir] 0
set size4 [file size $filename]
set free4 [stat_field $db stat "Pages on freelist"]
error_check_good \
file_size [expr [expr $size3 * $reduction] > $size4] 1
if { [is_record_based $method] == 1 } {
error_check_good pages_freed [expr $free4 >= $free3] 1
} else {
error_check_good pages_freed [expr $free4 > $free3] 1
}
puts "\tTest$tnum.j: Contents are the same after compaction."
if { $txnenv == 1 } {
set t [$env txn]
error_check_good txn [is_valid_txn $t $env] TRUE
set txn "-txn $t"
}
dump_file $db $txn $t2
if { $txnenv == 1 } {
error_check_good t_commit [$t commit] 0
}
error_check_good filecmp [filecmp $t1 $t2] 0
error_check_good db_close [$db close] 0
close $did
}
}
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