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|
{
lib,
pkgs,
package,
...
}:
rec {
name = "clickhouse-${package.version}-keeper";
meta.maintainers = with pkgs.lib.maintainers; [
jpds
thevar1able
];
nodes =
let
node = i: {
environment.etc = {
"clickhouse-server/config.d/cluster.xml".text = ''
<clickhouse>
<remote_servers>
<perftest_2shards_1replicas>
${lib.concatStrings (
lib.imap0 (j: name: ''
<shard>
<replica>
<host>${name}</host>
<port>9000</port>
</replica>
</shard>
'') (builtins.attrNames nodes)
)}
</perftest_2shards_1replicas>
</remote_servers>
</clickhouse>
'';
"clickhouse-server/config.d/keeper.xml".text = ''
<clickhouse>
<keeper_server>
<server_id>${toString i}</server_id>
<tcp_port>9181</tcp_port>
<log_storage_path>/var/lib/clickhouse/coordination/log</log_storage_path>
<snapshot_storage_path>/var/lib/clickhouse/coordination/snapshots</snapshot_storage_path>
<coordination_settings>
<operation_timeout_ms>10000</operation_timeout_ms>
<session_timeout_ms>30000</session_timeout_ms>
<raft_logs_level>trace</raft_logs_level>
<rotate_log_storage_interval>10000</rotate_log_storage_interval>
</coordination_settings>
<raft_configuration>
${lib.concatStrings (
lib.imap1 (j: name: ''
<server>
<id>${toString j}</id>
<hostname>${name}</hostname>
<port>9444</port>
</server>
'') (builtins.attrNames nodes)
)}
</raft_configuration>
</keeper_server>
<zookeeper>
${lib.concatStrings (
lib.imap0 (j: name: ''
<node>
<host>${name}</host>
<port>9181</port>
</node>
'') (builtins.attrNames nodes)
)}
</zookeeper>
<distributed_ddl>
<path>/clickhouse/testcluster/task_queue/ddl</path>
</distributed_ddl>
</clickhouse>
'';
"clickhouse-server/config.d/listen.xml".text = ''
<clickhouse>
<listen_host>::</listen_host>
</clickhouse>
'';
"clickhouse-server/config.d/macros.xml".text = ''
<clickhouse>
<macros>
<replica>${toString i}</replica>
<cluster>perftest_2shards_1replicas</cluster>
</macros>
</clickhouse>
'';
};
networking.firewall.allowedTCPPorts = [
9009
9181
9444
];
services.clickhouse = {
enable = true;
inherit package;
};
systemd.services.clickhouse = {
after = [ "network-online.target" ];
requires = [ "network-online.target" ];
};
virtualisation.memorySize = 1024 * 4;
virtualisation.diskSize = 1024 * 10;
};
in
{
clickhouse1 = node 1;
clickhouse2 = node 2;
};
testScript =
let
# work around quote/substitution complexity by Nix, Perl, bash and SQL.
clustersQuery = pkgs.writeText "clusters.sql" "SHOW clusters";
keeperQuery = pkgs.writeText "keeper.sql" "SELECT * FROM system.zookeeper WHERE path IN ('/', '/clickhouse') FORMAT VERTICAL";
systemClustersQuery = pkgs.writeText "system-clusters.sql" "SELECT host_name, host_address, replica_num FROM system.clusters WHERE cluster = 'perftest_2shards_1replicas'";
tableDDL = pkgs.writeText "table.sql" ''
CREATE TABLE test ON cluster 'perftest_2shards_1replicas' ( A Int64, S String)
Engine = ReplicatedMergeTree('/clickhouse/{cluster}/tables/{database}/{table}', '{replica}')
ORDER BY A;
'';
insertDDL = pkgs.writeText "insert.sql" "
INSERT INTO test SELECT number, '' FROM numbers(100000000);
";
selectCountQuery = pkgs.writeText "select-count.sql" "
select count() from test;
";
in
''
clickhouse1.start()
clickhouse2.start()
for machine in clickhouse1, clickhouse2:
machine.wait_for_unit("clickhouse.service")
machine.wait_for_open_port(9000)
machine.wait_for_open_port(9009)
machine.wait_for_open_port(9181)
machine.wait_for_open_port(9444)
machine.wait_until_succeeds(
"""
journalctl -o cat -u clickhouse.service | grep "Merging configuration file '/etc/clickhouse-server/config.d/keeper.xml'"
"""
)
machine.log(machine.succeed(
"cat ${clustersQuery} | clickhouse-client | grep perftest_2shards_1replicas"
))
machine.log(machine.succeed(
"cat ${keeperQuery} | clickhouse-client"
))
machine.succeed(
"cat ${systemClustersQuery} | clickhouse-client | grep clickhouse1"
)
machine.succeed(
"cat ${systemClustersQuery} | clickhouse-client | grep clickhouse2"
)
machine.succeed(
"ls /var/lib/clickhouse/coordination/log | grep changelog"
)
clickhouse2.succeed(
"cat ${tableDDL} | clickhouse-client"
)
clickhouse2.succeed(
"cat ${insertDDL} | clickhouse-client"
)
for machine in clickhouse1, clickhouse2:
machine.wait_until_succeeds(
"cat ${selectCountQuery} | clickhouse-client | grep 100000000"
)
'';
}
|
