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The 'sentinel replicas <master>' command will ignore replicas with priority of -1. As the value 0, the replica is marked as not able to perform the role of master.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| # Check that slaves are reconfigured at a latter time if they are partitioned. | ||
| # | ||
| # Here we should test: | ||
| # 1) That slaves point to the new master after failover. | ||
| # 2) That partitioned slaves point to new master when they are partitioned | ||
| # away during failover and return at a latter time. | ||
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| source "../tests/includes/init-tests.tcl" | ||
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| test "Check acceptable replica-priority values" { | ||
| foreach_redis_id id { | ||
| if {$id == $master_id} continue | ||
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| # ensure a priority of -2 throw an error | ||
| catch {R $id CONFIG SET replica-priority -2} e | ||
| if {$e eq "OK"} { | ||
| fail "Able to set replica-priority -2 to one redis replica whereas it should not be possible" | ||
| } | ||
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| # ensure a priority between -1 and 1000 is valid | ||
| for {set priority -1} {$priority <= 1000} {incr priority} { | ||
| catch {R $id CONFIG SET replica-priority $priority} e | ||
| if {$e ne "OK"} { | ||
| fail "Unable to set replica-priority $priority to one redis replica" | ||
| } | ||
| } | ||
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| # test only the first redis replica, no need to double test | ||
| break | ||
| } | ||
| } | ||
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| proc 08_test_number_of_replicas {} { | ||
| uplevel 1 { | ||
| test "Check sentinel replies with replicas ignoring those with priority of -1" { | ||
| # count number of replicas | ||
| set n_replicas 0 | ||
| foreach_redis_id id { | ||
| if {$id == $master_id} continue | ||
| if {[R $id CONFIG GET replica-priority] ne "replica-priority -1"} { | ||
| incr n_replicas | ||
| } | ||
| } | ||
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| # ensure sentinels replies with the right number of replicas | ||
| foreach_sentinel_id id { | ||
| # retries 40 x 500ms = 20s as SENTINEL_INFO_PERIOD = 10s | ||
| wait_for_condition 40 500 { | ||
| [llength [S $id SENTINEL REPLICAS mymaster]] == $n_replicas | ||
| } else { | ||
| fail "Sentinel replies with a wrong number of replicas with priority >=0" | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| 08_test_number_of_replicas | ||
| test "Set replica-priority -1 of the first found replica" { | ||
| foreach_redis_id id { | ||
| if {$id == $master_id} continue | ||
| R $id CONFIG SET replica-priority "-1" | ||
| break | ||
| } | ||
| } | ||
| 08_test_number_of_replicas |