Couldn’t map cluster keyspace using any provided seed

Resolved

(@gabrielfilippi)

I’m using Amazon ElastiCache and I’m not able to connect to it. In my wp-config I configured as follows:

define( 'WP_REDIS_TIMEOUT', 1 );
define( 'WP_REDIS_READ_TIMEOUT', 1 );
define( 'WP_REDIS_DATABASE', "5" );
define( 'WP_REDIS_CLIENT', 'phpredis' );
define( 'WP_REDIS_CLUSTER', [
    'tcp://xxxxxxx.rhtapl.XXXXXXXX.com:6379?alias=node-01',
    'tcp://xxxxxxx-ro.XXXXXXXX.com:6379?alias=node-02',
] );

The following error happens:
Couldn’t map cluster keyspace using any provided seed (RedisClusterException)

Redis Version: 5.0.5

Status: Not connected
Client: PhpRedis (v5.3.4)
Drop-in: Valid
Disabled: No
Ping: 
Connection Exception: Couldn't map cluster keyspace using any provided seed (RedisClusterException)
Errors: [
    "Couldn't map cluster keyspace using any provided seed"
]
PhpRedis: 5.3.4
Relay: Not loaded
Predis: Not loaded
Credis: Not loaded
PHP Version: 7.4.30
Plugin Version: 2.0.26
Redis Version: Unknown
Multisite: No
Metrics: Disabled
Metrics recorded: null
Filesystem: Working
Global Prefix: "wp_"
Blog Prefix: "wp_"
WP_REDIS_CLIENT: "phpredis"
WP_REDIS_CLUSTER: ["xxxxxxx.rhtapl.XXXXXXXX.com:6379?alias=node-01","tcp://xxxxxxx-ro.XXXXXXXX.com:6379?alias=node-02"]
Global Groups: [
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache"
]
Ignored Groups: [
    "counts",
    "plugins",
    "themes",
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache",
    "blog_meta"
]
Unflushable Groups: []
Drop-ins: [
    "advanced-cache.php v by ",
    "Redis Object Cache Drop-In v2.0.26 by Till Krüss"
]

Viewing 5 replies - 1 through 5 (of 5 total)

Plugin Author Till Krüss
(@tillkruess)

3 years, 11 months ago

You’re not using a real cluster then. Post the output of redis-cli info cluster.

Thread Starter gabrielfilippi
(@gabrielfilippi)

3 years, 11 months ago

# Server
redis_version:5.0.5
redis_git_sha1:0
redis_git_dirty:0
redis_build_id:0
redis_mode:standalone
os:Amazon ElastiCache
arch_bits:64
multiplexing_api:epoll
atomicvar_api:atomic-builtin
gcc_version:0.0.0
process_id:1
run_id:017c6d5b4b515a432fd5ee8c68ce0e6ef32b5dfc
tcp_port:6379
uptime_in_seconds:24904856
uptime_in_days:288
hz:10
configured_hz:10
lru_clock:13462421
executable:-
config_file:-

# Clients
connected_clients:3
client_recent_max_input_buffer:2
client_recent_max_output_buffer:0
blocked_clients:0

# Memory
used_memory:4303960
used_memory_human:4.10M
used_memory_rss:5611520
used_memory_rss_human:5.35M
used_memory_peak:6820808
used_memory_peak_human:6.50M
used_memory_peak_perc:63.10%
used_memory_overhead:4282754
used_memory_startup:4198640
used_memory_dataset:21206
used_memory_dataset_perc:20.13%
allocator_allocated:4534632
allocator_active:4943872
allocator_resident:10059776
used_memory_lua:37888
used_memory_lua_human:37.00K
used_memory_scripts:0
used_memory_scripts_human:0B
number_of_cached_scripts:0
maxmemory:436469760
maxmemory_human:416.25M
maxmemory_policy:volatile-lru
allocator_frag_ratio:1.09
allocator_frag_bytes:409240
allocator_rss_ratio:2.03
allocator_rss_bytes:5115904
rss_overhead_ratio:0.56
rss_overhead_bytes:-4448256
mem_fragmentation_ratio:1.32
mem_fragmentation_bytes:1370320
mem_not_counted_for_evict:0
mem_replication_backlog:0
mem_clients_slaves:0
mem_clients_normal:83970
mem_aof_buffer:0
mem_allocator:jemalloc-5.1.0
active_defrag_running:0
lazyfree_pending_objects:0

# Persistence
loading:0
rdb_changes_since_last_save:5
rdb_bgsave_in_progress:0
rdb_last_save_time:1657599503
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:0
rdb_current_bgsave_time_sec:-1
rdb_last_cow_size:188416
aof_enabled:0
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
aof_last_rewrite_time_sec:-1
aof_current_rewrite_time_sec:-1
aof_last_bgrewrite_status:ok
aof_last_write_status:ok
aof_last_cow_size:0

# Stats
total_connections_received:1057867
total_commands_processed:70550142
instantaneous_ops_per_sec:1
total_net_input_bytes:1597276780
total_net_output_bytes:222507797702
instantaneous_input_kbps:0.03
instantaneous_output_kbps:4.44
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:197696
expired_stale_perc:0.00
expired_time_cap_reached_count:0
evicted_keys:0
keyspace_hits:29690
keyspace_misses:197979
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:175
migrate_cached_sockets:0
slave_expires_tracked_keys:0
active_defrag_hits:0
active_defrag_misses:0
active_defrag_key_hits:0
active_defrag_key_misses:0

# Replication
role:master
connected_slaves:0
master_replid:fd4acda0d18b4ec70e8b4341ffc54aecaff0257e
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:5616
second_repl_offset:-1
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:1686
repl_backlog_histlen:3931

# CPU
used_cpu_sys:11722.037868
used_cpu_user:18501.894229
used_cpu_sys_children:0.035800
used_cpu_user_children:0.214748

# SSL
ssl_enabled:no
ssl_connections_to_previous_certificate:0
ssl_connections_to_current_certificate:0
ssl_current_certificate_not_before_date:(null)
ssl_current_certificate_not_after_date:(null)
ssl_current_certificate_serial:0

# Cluster
cluster_enabled:0

# Keyspace
db2:keys=1,expires=1,avg_ttl=286350
Plugin Author Till Krüss
(@tillkruess)

3 years, 11 months ago
You’re trying to connect to a cluster, but you’re not running a cluster:
```
cluster_enabled:0
```
Thread Starter gabrielfilippi
(@gabrielfilippi)

3 years, 11 months ago
Right, but I tried the conventional way, configuring with the variables below and it doesn’t work either.
```
define( 'WP_REDIS_HOST', 'ff-cache-xxxxxxxx.cache.amazonaws.com' );
define("WP_REDIS_PORT", "6379");
```
And the following error happens:
```
Status: Not connected
Client: PhpRedis (v5.3.4)
Drop-in: Valid
Disabled: No
Ping: 
Connection Exception: Connection timed out (RedisException)
Errors: [
    "Connection timed out"
]
PhpRedis: 5.3.4
Relay: Not loaded
Predis: Not loaded
Credis: Not loaded
PHP Version: 7.4.30
Plugin Version: 2.0.26
Redis Version: Unknown
Multisite: No
Metrics: Disabled
Metrics recorded: null
Filesystem: Working
Global Prefix: "wp_"
Blog Prefix: "wp_"
WP_REDIS_HOST: "ff-cache-001.rhtapl.0001.use1.cache.amazonaws.com"
WP_REDIS_PORT: "6379"
Global Groups: [
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache"
]
Ignored Groups: [
    "counts",
    "plugins",
    "themes",
    "blog-details",
    "blog-id-cache",
    "blog-lookup",
    "global-posts",
    "networks",
    "rss",
    "sites",
    "site-details",
    "site-lookup",
    "site-options",
    "site-transient",
    "users",
    "useremail",
    "userlogins",
    "usermeta",
    "user_meta",
    "userslugs",
    "redis-cache",
    "blog_meta"
]
Unflushable Groups: []
Drop-ins: [
    "advanced-cache.php v by ",
    "Redis Object Cache Drop-In v2.0.26 by Till Krüss"
]
```
I already tried modifying the WP_REDIS_TIMEOUT and WP_REDIS_READ_TIMEOUT parameters to 0, 5 and 10 and nothing happened.
Plugin Author Till Krüss
(@tillkruess)

3 years, 11 months ago

You PHP server probably can’t access the Redis server. Try connecting via redis-cli first on that machine to ensure it’s not a network issue.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Couldn’t map cluster keyspace using any provided seed’ is closed to new replies.