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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 13:40:54 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-14 13:40:54 +0000 |
commit | 317c0644ccf108aa23ef3fd8358bd66c2840bfc0 (patch) | |
tree | c417b3d25c86b775989cb5ac042f37611b626c8a /tests/cluster/cluster.tcl | |
parent | Initial commit. (diff) | |
download | redis-upstream/5%7.2.4.tar.xz redis-upstream/5%7.2.4.zip |
Adding upstream version 5:7.2.4.upstream/5%7.2.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/cluster/cluster.tcl')
-rw-r--r-- | tests/cluster/cluster.tcl | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/tests/cluster/cluster.tcl b/tests/cluster/cluster.tcl new file mode 100644 index 0000000..9931eac --- /dev/null +++ b/tests/cluster/cluster.tcl @@ -0,0 +1,222 @@ +# Cluster-specific test functions. +# +# Copyright (C) 2014 Salvatore Sanfilippo antirez@gmail.com +# This software is released under the BSD License. See the COPYING file for +# more information. + +# Track cluster configuration as created by create_cluster below +set ::cluster_master_nodes 0 +set ::cluster_replica_nodes 0 + +# Returns a parsed CLUSTER NODES output as a list of dictionaries. Optional status field +# can be specified to only returns entries that match the provided status. +proc get_cluster_nodes {id {status "*"}} { + set lines [split [R $id cluster nodes] "\r\n"] + set nodes {} + foreach l $lines { + set l [string trim $l] + if {$l eq {}} continue + set args [split $l] + set node [dict create \ + id [lindex $args 0] \ + addr [lindex $args 1] \ + flags [split [lindex $args 2] ,] \ + slaveof [lindex $args 3] \ + ping_sent [lindex $args 4] \ + pong_recv [lindex $args 5] \ + config_epoch [lindex $args 6] \ + linkstate [lindex $args 7] \ + slots [lrange $args 8 end] \ + ] + if {[string match $status [lindex $args 7]]} { + lappend nodes $node + } + } + return $nodes +} + +# Test node for flag. +proc has_flag {node flag} { + expr {[lsearch -exact [dict get $node flags] $flag] != -1} +} + +# Returns the parsed myself node entry as a dictionary. +proc get_myself id { + set nodes [get_cluster_nodes $id] + foreach n $nodes { + if {[has_flag $n myself]} {return $n} + } + return {} +} + +# Get a specific node by ID by parsing the CLUSTER NODES output +# of the instance Number 'instance_id' +proc get_node_by_id {instance_id node_id} { + set nodes [get_cluster_nodes $instance_id] + foreach n $nodes { + if {[dict get $n id] eq $node_id} {return $n} + } + return {} +} + +# Return the value of the specified CLUSTER INFO field. +proc CI {n field} { + get_info_field [R $n cluster info] $field +} + +# Return the value of the specified INFO field. +proc s {n field} { + get_info_field [R $n info] $field +} + +# Assuming nodes are reset, this function performs slots allocation. +# Only the first 'n' nodes are used. +proc cluster_allocate_slots {n} { + set slot 16383 + while {$slot >= 0} { + # Allocate successive slots to random nodes. + set node [randomInt $n] + lappend slots_$node $slot + incr slot -1 + } + for {set j 0} {$j < $n} {incr j} { + R $j cluster addslots {*}[set slots_${j}] + } +} + +# Check that cluster nodes agree about "state", or raise an error. +proc assert_cluster_state {state} { + foreach_redis_id id { + if {[instance_is_killed redis $id]} continue + wait_for_condition 1000 50 { + [CI $id cluster_state] eq $state + } else { + fail "Cluster node $id cluster_state:[CI $id cluster_state]" + } + } +} + +# Search the first node starting from ID $first that is not +# already configured as a slave. +proc cluster_find_available_slave {first} { + foreach_redis_id id { + if {$id < $first} continue + if {[instance_is_killed redis $id]} continue + set me [get_myself $id] + if {[dict get $me slaveof] eq {-}} {return $id} + } + fail "No available slaves" +} + +# Add 'slaves' slaves to a cluster composed of 'masters' masters. +# It assumes that masters are allocated sequentially from instance ID 0 +# to N-1. +proc cluster_allocate_slaves {masters slaves} { + for {set j 0} {$j < $slaves} {incr j} { + set master_id [expr {$j % $masters}] + set slave_id [cluster_find_available_slave $masters] + set master_myself [get_myself $master_id] + R $slave_id cluster replicate [dict get $master_myself id] + } +} + +# Create a cluster composed of the specified number of masters and slaves. +proc create_cluster {masters slaves} { + cluster_allocate_slots $masters + if {$slaves} { + cluster_allocate_slaves $masters $slaves + } + assert_cluster_state ok + + set ::cluster_master_nodes $masters + set ::cluster_replica_nodes $slaves +} + +proc cluster_allocate_with_continuous_slots {n} { + set slot 16383 + set avg [expr ($slot+1) / $n] + while {$slot >= 0} { + set node [expr $slot/$avg >= $n ? $n-1 : $slot/$avg] + lappend slots_$node $slot + incr slot -1 + } + for {set j 0} {$j < $n} {incr j} { + R $j cluster addslots {*}[set slots_${j}] + } +} + +# Create a cluster composed of the specified number of masters and slaves, +# but with a continuous slot range. +proc cluster_create_with_continuous_slots {masters slaves} { + cluster_allocate_with_continuous_slots $masters + if {$slaves} { + cluster_allocate_slaves $masters $slaves + } + assert_cluster_state ok + + set ::cluster_master_nodes $masters + set ::cluster_replica_nodes $slaves +} + + +# Set the cluster node-timeout to all the reachalbe nodes. +proc set_cluster_node_timeout {to} { + foreach_redis_id id { + catch {R $id CONFIG SET cluster-node-timeout $to} + } +} + +# Check if the cluster is writable and readable. Use node "id" +# as a starting point to talk with the cluster. +proc cluster_write_test {id} { + set prefix [randstring 20 20 alpha] + set port [get_instance_attrib redis $id port] + set cluster [redis_cluster 127.0.0.1:$port] + for {set j 0} {$j < 100} {incr j} { + $cluster set key.$j $prefix.$j + } + for {set j 0} {$j < 100} {incr j} { + assert {[$cluster get key.$j] eq "$prefix.$j"} + } + $cluster close +} + +# Check if cluster configuration is consistent. +proc cluster_config_consistent {} { + for {set j 0} {$j < $::cluster_master_nodes + $::cluster_replica_nodes} {incr j} { + if {$j == 0} { + set base_cfg [R $j cluster slots] + } else { + set cfg [R $j cluster slots] + if {$cfg != $base_cfg} { + return 0 + } + } + } + + return 1 +} + +# Wait for cluster configuration to propagate and be consistent across nodes. +proc wait_for_cluster_propagation {} { + wait_for_condition 50 100 { + [cluster_config_consistent] eq 1 + } else { + fail "cluster config did not reach a consistent state" + } +} + +# Check if cluster's view of hostnames is consistent +proc are_hostnames_propagated {match_string} { + for {set j 0} {$j < $::cluster_master_nodes + $::cluster_replica_nodes} {incr j} { + set cfg [R $j cluster slots] + foreach node $cfg { + for {set i 2} {$i < [llength $node]} {incr i} { + if {! [string match $match_string [lindex [lindex [lindex $node $i] 3] 1]] } { + return 0 + } + } + } + } + return 1 +} |