1# See the file LICENSE for redistribution information.
2#
3# Copyright (c) 2005,2008 Oracle.  All rights reserved.
4#
5# $Id: rep043.tcl,v 1.17 2008/01/08 20:58:53 bostic Exp $
6#
7# TEST	rep043
8# TEST
9# TEST	Constant writes during upgrade/downgrade.
10# TEST
11# TEST	Three envs take turns being master.  Each env
12# TEST	has a child process which does writes all the
13# TEST	time.  They will succeed when that env is master
14# TEST	and fail when it is not.
15
16proc rep043 { method { rotations 25 } { tnum "043" } args } {
17
18	source ./include.tcl
19	if { $is_windows9x_test == 1 } {
20		puts "Skipping replication test on Win 9x platform."
21		return
22	}
23
24	# Skip for record-based methods.
25	if { $checking_valid_methods } {
26		set test_methods {}
27		foreach method $valid_methods {
28			if { [is_record_based $method] != 1 } {
29				lappend test_methods $method
30			}
31		}
32		return $test_methods
33	}
34	if { [is_record_based $method] == 1 } {
35		puts "Skipping rep$tnum for record-based methods."
36		return
37	}
38
39	set args [convert_args $method $args]
40	set logsets [create_logsets 3]
41
42	# Run the body of the test with and without recovery.
43	foreach r $test_recopts {
44		foreach l $logsets {
45			set logindex [lsearch -exact $l "in-memory"]
46			if { $r == "-recover" && $logindex != -1 } {
47				puts "Rep$tnum: Skipping\
48				    for in-memory logs with -recover."
49				continue
50			}
51			puts "Rep$tnum ($method $r): Constant writes with \
52			    rotating master $rotations times."
53			puts "Rep$tnum: Master logs are [lindex $l 0]"
54			puts "Rep$tnum: Client 0 logs are [lindex $l 1]"
55			puts "Rep$tnum: Client 1 logs are [lindex $l 2]"
56			rep043_sub $method $rotations $tnum $l $r $args
57		}
58	}
59}
60
61proc rep043_sub { method rotations tnum logset recargs largs } {
62	source ./include.tcl
63	global rep_verbose
64	global verbose_type
65
66	set verbargs ""
67	if { $rep_verbose == 1 } {
68		set verbargs " -verbose {$verbose_type on} "
69	}
70
71	env_cleanup $testdir
72	set orig_tdir $testdir
73
74	replsetup $testdir/MSGQUEUEDIR
75
76	set masterdir $testdir/ENV0
77	set clientdir $testdir/ENV1
78	set clientdir2 $testdir/ENV2
79	file mkdir $masterdir
80	file mkdir $clientdir
81	file mkdir $clientdir2
82
83	set m_logtype [lindex $logset 0]
84	set c_logtype [lindex $logset 1]
85	set c2_logtype [lindex $logset 2]
86
87	# In-memory logs require a large log buffer, and cannot
88	# be used with -txn nosync.
89	set m_logargs [adjust_logargs $m_logtype]
90	set c_logargs [adjust_logargs $c_logtype]
91	set c2_logargs [adjust_logargs $c2_logtype]
92	set m_txnargs [adjust_txnargs $m_logtype]
93	set c_txnargs [adjust_txnargs $c_logtype]
94	set c2_txnargs [adjust_txnargs $c2_logtype]
95
96	set niter 200
97	set testfile rep043.db
98	set omethod [convert_method $method]
99
100	# Since we're constantly switching master in this test run
101	# each with a different cache size just to verify that cachesize
102	# doesn't matter for different sites.
103
104	# Open a master.
105	repladd 1
106	set ma_envcmd "berkdb_env_noerr -create $m_txnargs \
107	    $m_logargs -errpfx ENV0 -errfile /dev/stderr $verbargs \
108	    -cachesize {0 4194304 3} -lock_detect default \
109	    -home $masterdir -rep_transport \[list 1 replsend\]"
110	set env0 [eval $ma_envcmd $recargs -rep_master]
111
112	# Open two clients
113	repladd 2
114	set cl_envcmd "berkdb_env_noerr -create $c_txnargs \
115	    $c_logargs -errpfx ENV1 -errfile /dev/stderr $verbargs \
116	    -cachesize {0 2097152 2} -lock_detect default \
117	    -home $clientdir -rep_transport \[list 2 replsend\]"
118	set env1 [eval $cl_envcmd $recargs -rep_client]
119
120	repladd 3
121	set cl2_envcmd "berkdb_env_noerr -create $c2_txnargs \
122	    $c2_logargs -errpfx ENV2 -errfile /dev/stderr $verbargs \
123	    -cachesize {0 1048576 1} -lock_detect default \
124	    -home $clientdir2 -rep_transport \[list 3 replsend\]"
125	set env2 [eval $cl2_envcmd $recargs -rep_client]
126
127	# Bring the clients online by processing the startup messages.
128	set envlist "{$env0 1} {$env1 2} {$env2 3}"
129	process_msgs $envlist
130
131	# Set up marker file.
132	set markerenv [berkdb_env -create -home $testdir -txn]
133	error_check_good marker_open [is_valid_env $markerenv] TRUE
134	set marker [eval "berkdb_open \
135	    -create -btree -auto_commit -env $markerenv marker.db"]
136
137	# Start the 3 child processes: one for each env.
138	set pids {}
139	set dirlist "0 $masterdir 1 $clientdir 2 $clientdir2"
140	foreach { writer dir } $dirlist {
141		puts "\tRep$tnum.a: Fork child process WRITER$writer."
142		set pid [exec $tclsh_path $test_path/wrap.tcl \
143		    rep043script.tcl $testdir/rep043script.log.$writer \
144		    $dir $writer &]
145		lappend pids $pid
146	}
147
148	# For the first iteration, masterenv is $env0.
149	set masterenv $env0
150	set curdir $masterdir
151
152	# Write $niter entries to master, then rotate.
153	for { set i 0 } { $i < $rotations } { incr i } {
154
155		# Identify current master, determine next master
156		if { $masterenv == $env0 } {
157			set nextmasterenv $env1
158			set nextdir $clientdir
159		} elseif { $masterenv == $env1 } {
160			set nextmasterenv $env2
161			set nextdir $clientdir2
162		} elseif { $masterenv == $env2 } {
163			set nextmasterenv $env0
164			set nextdir $masterdir
165		} else {
166			puts "FAIL: could not identify current master"
167			return
168		}
169
170		puts "\tRep$tnum.b.$i: Open master db in $curdir."
171		set mdb [eval {berkdb_open_noerr} -env $masterenv -auto_commit \
172		    -mode 0644 $omethod -create $testfile]
173		error_check_good dbopen [is_valid_db $mdb] TRUE
174		error_check_good marker_iter [$marker put ITER $i] 0
175
176		puts "\t\tRep$tnum.c.$i: Put data to master."
177		for { set j 0 } { $j < $niter } { incr j } {
178			set key KEY.$i.$j
179			set data DATA
180			set t [$masterenv txn]
181			set stat [catch \
182			    {eval {$mdb put} -txn $t $key $data} ret]
183			if { $ret == 0 } {
184				error_check_good commit [$t commit] 0
185			} else {
186				error_check_good commit [$t abort] 0
187			}
188		}
189		error_check_good mdb_close [$mdb close] 0
190
191		# Checkpoint.
192		error_check_good checkpoint [$masterenv txn_checkpoint] 0
193
194		process_msgs $envlist
195
196		puts "\t\tRep$tnum.d.$i: Downgrade current master."
197		error_check_good downgrade [$masterenv rep_start -client] 0
198
199		puts "\t\tRep$tnum.e.$i: Upgrade next master $nextdir."
200		error_check_good upgrade [$nextmasterenv rep_start -master] 0
201		set masterenv $nextmasterenv
202		set curdir $nextdir
203
204		process_msgs $envlist
205	}
206
207
208	puts "\tRep$tnum.f: Clean up."
209	# Tell the child processes we are done.
210	error_check_good marker_done [$marker put DONE DONE] 0
211	error_check_good marker_close [$marker close] 0
212	error_check_good markerenv_close [$markerenv close] 0
213
214	error_check_good env0_close [$env0 close] 0
215	error_check_good env1_close [$env1 close] 0
216	error_check_good env2_close [$env2 close] 0
217
218	# Make sure the child processes are done.
219	watch_procs $pids 1
220
221	# Check log files for failures.
222	for { set n 0 } { $n < 3 } { incr n } {
223		set file rep043script.log.$n
224		set errstrings [eval findfail $testdir/$file]
225		foreach str $errstrings {
226			puts "FAIL: error message in file $file: $str"
227		}
228	}
229
230	replclose $testdir/MSGQUEUEDIR
231	set testdir $orig_tdir
232	return
233}
234