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127 lines
3.8 KiB
Tcl
127 lines
3.8 KiB
Tcl
# Check the basic monitoring and failover capabilities.
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source "../tests/includes/init-tests.tcl"
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if {$::simulate_error} {
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test "This test will fail" {
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fail "Simulated error"
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}
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}
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test "Basic failover works if the master is down" {
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set old_port [RI $master_id tcp_port]
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set addr [S 0 SENTINEL GET-MASTER-ADDR-BY-NAME mymaster]
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assert {[lindex $addr 1] == $old_port}
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kill_instance redis $master_id
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foreach_sentinel_id id {
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wait_for_condition 1000 50 {
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[lindex [S $id SENTINEL GET-MASTER-ADDR-BY-NAME mymaster] 1] != $old_port
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} else {
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fail "At least one Sentinel did not receive failover info"
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}
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}
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restart_instance redis $master_id
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set addr [S 0 SENTINEL GET-MASTER-ADDR-BY-NAME mymaster]
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set master_id [get_instance_id_by_port redis [lindex $addr 1]]
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}
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test "New master [join $addr {:}] role matches" {
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assert {[RI $master_id role] eq {master}}
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}
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test "All the other slaves now point to the new master" {
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foreach_redis_id id {
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if {$id != $master_id && $id != 0} {
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wait_for_condition 1000 50 {
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[RI $id master_port] == [lindex $addr 1]
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} else {
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fail "Redis ID $id not configured to replicate with new master"
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}
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}
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}
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}
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test "The old master eventually gets reconfigured as a slave" {
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wait_for_condition 1000 50 {
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[RI 0 master_port] == [lindex $addr 1]
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} else {
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fail "Old master not reconfigured as slave of new master"
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}
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}
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test "ODOWN is not possible without N (quorum) Sentinels reports" {
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foreach_sentinel_id id {
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S $id SENTINEL SET mymaster quorum [expr $sentinels+1]
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}
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set old_port [RI $master_id tcp_port]
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set addr [S 0 SENTINEL GET-MASTER-ADDR-BY-NAME mymaster]
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assert {[lindex $addr 1] == $old_port}
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kill_instance redis $master_id
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# Make sure failover did not happened.
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set addr [S 0 SENTINEL GET-MASTER-ADDR-BY-NAME mymaster]
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assert {[lindex $addr 1] == $old_port}
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restart_instance redis $master_id
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}
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test "Failover is not possible without majority agreement" {
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foreach_sentinel_id id {
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S $id SENTINEL SET mymaster quorum $quorum
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}
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# Crash majority of sentinels
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for {set id 0} {$id < $quorum} {incr id} {
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kill_instance sentinel $id
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}
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# Kill the current master
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kill_instance redis $master_id
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# Make sure failover did not happened.
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set addr [S $quorum SENTINEL GET-MASTER-ADDR-BY-NAME mymaster]
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assert {[lindex $addr 1] == $old_port}
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restart_instance redis $master_id
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# Cleanup: restart Sentinels to monitor the master.
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for {set id 0} {$id < $quorum} {incr id} {
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restart_instance sentinel $id
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}
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}
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test "Failover works if we configure for absolute agreement" {
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foreach_sentinel_id id {
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S $id SENTINEL SET mymaster quorum $sentinels
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}
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# Wait for Sentinels to monitor the master again
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foreach_sentinel_id id {
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wait_for_condition 1000 50 {
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[dict get [S $id SENTINEL MASTER mymaster] info-refresh] < 100000
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} else {
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fail "At least one Sentinel is not monitoring the master"
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}
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}
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kill_instance redis $master_id
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foreach_sentinel_id id {
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wait_for_condition 1000 50 {
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[lindex [S $id SENTINEL GET-MASTER-ADDR-BY-NAME mymaster] 1] != $old_port
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} else {
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fail "At least one Sentinel did not receive failover info"
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}
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}
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restart_instance redis $master_id
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set addr [S 0 SENTINEL GET-MASTER-ADDR-BY-NAME mymaster]
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set master_id [get_instance_id_by_port redis [lindex $addr 1]]
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# Set the min ODOWN agreement back to strict majority.
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foreach_sentinel_id id {
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S $id SENTINEL SET mymaster quorum $quorum
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}
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}
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test "New master [join $addr {:}] role matches" {
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assert {[RI $master_id role] eq {master}}
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}
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