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Diffstat (limited to 'db-4.8.30/test/rep074.tcl')
-rw-r--r-- | db-4.8.30/test/rep074.tcl | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/db-4.8.30/test/rep074.tcl b/db-4.8.30/test/rep074.tcl new file mode 100644 index 0000000..5026b1b --- /dev/null +++ b/db-4.8.30/test/rep074.tcl @@ -0,0 +1,197 @@ +# See the file LICENSE for redistribution information. +# +# Copyright (c) 2007-2009 Oracle. All rights reserved. +# +# $Id$ +# +# TEST rep074 +# TEST Verify replication withstands send errors processing requests. +# TEST +# TEST Run for btree only because access method shouldn't matter. +# TEST +proc rep074 { method { niter 20 } { tnum "074" } args } { + + source ./include.tcl + global databases_in_memory + global repfiles_in_memory + + if { $is_windows9x_test == 1 } { + puts "Skipping replication test on Win9x platform." + return + } + + # Skip for all methods except btree. + if { $checking_valid_methods } { + return btree + } + if { [is_btree $method] == 0 } { + puts "Rep$tnum: skipping for non-btree method $method." + return + } + + set args [convert_args $method $args] + set logsets [create_logsets 2] + + # Set up for on-disk or in-memory databases. + set msg "using on-disk databases" + if { $databases_in_memory } { + set msg "using named in-memory databases" + if { [is_queueext $method] } { + puts -nonewline "Skipping rep$tnum for method " + puts "$method with named in-memory databases." + return + } + } + + set msg2 "and on-disk replication files" + if { $repfiles_in_memory } { + set msg2 "and in-memory replication files" + } + + foreach l $logsets { + puts "Rep$tnum ($method): Test of send errors processing\ + requests $msg $msg2." + puts "Rep$tnum: Master logs are [lindex $l 0]" + puts "Rep$tnum: Client logs are [lindex $l 1]" + rep074_sub $method $niter $tnum $l $args + } +} + +proc rep074_sub { method niter tnum logset largs } { + global testdir + global rep074_failure_count + global repfiles_in_memory + global rep_verbose + global verbose_type + + set rep074_failure_count -1 + + set verbargs "" + if { $rep_verbose == 1 } { + set verbargs " -verbose {$verbose_type on} " + } + + set repmemargs "" + if { $repfiles_in_memory } { + set repmemargs "-rep_inmem_files " + } + + env_cleanup $testdir + + replsetup $testdir/MSGQUEUEDIR + + set masterdir $testdir/MASTERDIR + set clientdir $testdir/CLIENTDIR + + file mkdir $masterdir + file mkdir $clientdir + + set m_logtype [lindex $logset 0] + set c_logtype [lindex $logset 1] + + # In-memory logs require a large log buffer, and cannot + # be used with -txn nosync. Adjust the args for master + # and client. + set m_logargs [adjust_logargs $m_logtype] + set c_logargs [adjust_logargs $c_logtype] + set m_txnargs [adjust_txnargs $m_logtype] + set c_txnargs [adjust_txnargs $c_logtype] + + # Open a master. + repladd 1 + set ma_envcmd "berkdb_env_noerr -create $verbargs -errpfx MASTER \ + -home $masterdir $m_logargs $m_txnargs $repmemargs \ + -rep_transport \[list 1 rep074_replsend\]" + set masterenv [eval $ma_envcmd -rep_master] + + # Create some new records, so that the master will have something + # substantial to say when asked for LOG_REQ. + # + puts "\tRep$tnum.a: Running rep_test in replicated env." + eval rep_test $method $masterenv NULL $niter 0 0 0 $largs + + # Open a client + repladd 2 + set cl_envcmd "berkdb_env_noerr -create $verbargs -errpfx CLIENT \ + -home $clientdir $c_logargs $c_txnargs $repmemargs \ + -rep_transport \[list 2 replsend\]" + set clientenv [eval $cl_envcmd -rep_client] + set envlist "{$masterenv 1} {$clientenv 2}" + + # Bring the client online by processing the startup messages. This will + # cause the client to send a request to the master. + # + # In the first cycle, the client gets NEWMASTER and sends an UPDATE_REQ. + # In the second cycle, the master answers the UPDATE_REQ with an UPDATE, + # and the client sends a PAGE_REQ. Third, once we've gotten pages, we + # send a LOG_REQ. + # + # 1. NEWCLIENT -> NEWMASTER -> UPDATE_REQ + # 2. UPDATE -> PAGE_REQ + # 3. PAGE -> LOG_REQ + # + puts "\tRep$tnum.b: NEWMASTER -> UPDATE_REQ" + proc_msgs_once $envlist + puts "\tRep$tnum.c: UPDATE -> PAGE_REQ" + proc_msgs_once $envlist + puts "\tRep$tnum.d: PAGE -> LOG_REQ" + proc_msgs_once $envlist + + # Force a sending error at the master while processing the LOG_REQ. + # We should ignore it, and return success to rep_process_message + # + puts "\tRep$tnum.e: Simulate a send error." + set rep074_failure_count [expr $niter / 2] + proc_msgs_once $envlist NONE errorp + + puts "\tRep$tnum.f: Check for good return from rep_process_msg." + error_check_good rep_resilient $errorp 0 + + # Since we interrupted the flow with the simulated error, we don't have + # the log records we need yet. + # + error_check_bad startupdone \ + [stat_field $clientenv rep_stat "Startup complete"] 1 + + # + # Run some more new txns at the master, so that the client eventually + # decides to request the remainder of the LOG_REQ response that it's + # missing. Pause for a second to make sure we reach the lower + # threshold for re-request on fast machines. We need to force a + # checkpoint because we need to create a gap, and then pause to + # reach the rerequest threshold. + # + set rep074_failure_count -1 + $masterenv txn_checkpoint -force + process_msgs $envlist + tclsleep 1 + eval rep_test $method $masterenv NULL $niter 0 0 0 $largs + process_msgs $envlist + + error_check_good startupdone \ + [stat_field $clientenv rep_stat "Startup complete"] 1 + + $masterenv close + $clientenv close + replclose $testdir/MSGQUEUEDIR +} + +# Failure count < 0 turns off any special failure simulation processing. +# When the count is > 0, it means we should process that many messages normally, +# before invoking a failure. +# +proc rep074_replsend { control rec fromid toid flags lsn } { + global rep074_failure_count + + if { $rep074_failure_count < 0 } { + return [replsend $control $rec $fromid $toid $flags $lsn] + } + + if { $rep074_failure_count > 0 } { + incr rep074_failure_count -1 + return [replsend $control $rec $fromid $toid $flags $lsn] + } + + # Return an arbitrary non-zero value to indicate an error. + return 1 +} |