skywalking php agent doesn't send data to oap server. The UI doesn't have data. #13039

thiagoluna · 2025-02-17T00:45:12Z

thiagoluna
Feb 17, 2025

Hello, everyone!
The oap server cannot receive any data. The UI doesn't have data.

My environment:
Local PHP 8.3 installed with brew
php -v

PHP 8.3.17 (cli) (built: Feb 11 2025 22:03:03) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.17, Copyright (c) Zend Technologies
    with Xdebug v3.3.2, Copyright (c) 2002-2024, by Derick Rethans
    with Zend OPcache v8.3.17, Copyright (c), by Zend Technologie

php.ini

[skywalking_agent]
extension=skywalking_agent.so
skywalking_agent.enable = 1
skywalking_agent.log_level = "DEBUG"
skywalking_agent.reporter_type = "grpc"   
skywalking_agent.service_name = "meu-servico"
skywalking_agent.server_addr = "127.0.0.1:11800"
skywalking_agent.instance_name = ${HOSTNAME}

Local skywalking-agent installed from git clone https://github.com/apache/skywalking-php.git
cd skywalking-php >> phpize >> ./configure >> make >> make install

skywalking_agent.so is active

# php -m | grep skywalking

skywalking_agent

# php --ri skywalking_agent
skywalking_agent

version => 1.0.0-dev
authors => Apache Software Foundation:jmjoy <[email protected]>:Yanlong He <[email protected]>

Directive => Local Value => Master Value
skywalking_agent.enable => 1 => 1
skywalking_agent.skywalking_version => 8 => 8
skywalking_agent.server_addr => 127.0.0.1:11800 => 127.0.0.1:11800
skywalking_agent.instance_name => no value => no value
skywalking_agent.service_name => meu-servico => meu-servico
skywalking_agent.worker_threads => 0 => 0
skywalking_agent.log_level => DEBUG => DEBUG
skywalking_agent.log_file => /tmp/skywalking-agent.log => /tmp/skywalking-agent.log
skywalking_agent.runtime_dir => /tmp/skywalking-agent => /tmp/skywalking-agent
skywalking_agent.authentication => no value => no value
skywalking_agent.enable_tls => 0 => 0
skywalking_agent.ssl_trusted_ca_path => no value => no value
skywalking_agent.ssl_key_path => no value => no value
skywalking_agent.ssl_cert_chain_path => no value => no value
skywalking_agent.heartbeat_period => 30 => 30
skywalking_agent.properties_report_period_factor => 10 => 10
skywalking_agent.enable_zend_observer => 0 => 0
skywalking_agent.reporter_type => grpc => grpc
skywalking_agent.kafka_bootstrap_servers => no value => no value
skywalking_agent.kafka_producer_config => {} => {}
skywalking_agent.inject_context => 0 => 0
skywalking_agent.standalone_socket_path => no value => no value

skywalking-oap, skywalking-ui and elasticsearch installed with docker

version: "3.9"

services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.17.13
    container_name: elasticsearch
    restart: unless-stopped
    networks:
      - skywalker-network
    environment:
      - discovery.type=single-node
      - xpack.security.enabled=false
      - bootstrap.memory_lock=true
      - ES_JAVA_OPTS=-Xms512m -Xmx512m
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - es_data:/usr/share/elasticsearch/data
    ports:
      - "9200:9200"

  skywalking-oap:
    image: apache/skywalking-oap-server:latest
    container_name: skywalking-oap
    restart: unless-stopped
    networks:
      - skywalker-network
    environment:
      SW_STORAGE: elasticsearch
      SW_STORAGE_ES_CLUSTER_NODES: elasticsearch:9200
      JAVA_OPTS: -Xms512m -Xmx512m
    ports:
      - "12800:12800"  # HTTP
      - "11800:11800"  # gRPC
    extra_hosts:
      - "host.docker.internal:host-gateway"
    depends_on:
      - elasticsearch

  skywalking-ui:
    image: apache/skywalking-ui:latest
    container_name: skywalking-ui
    restart: unless-stopped
    networks:
      - skywalker-network
    environment:
      SW_OAP_ADDRESS: "http://skywalking-oap:12800"
    depends_on:
      - skywalking-oap
    ports:
      - "9000:8080"

networks:
  skywalker-network:
    external: true
    name: skywalker-network

volumes:
  es_data:

# docker-compose ps
NAME             IMAGE                                                   COMMAND                  SERVICE          CREATED       STATUS       PORTS
elasticsearch    docker.elastic.co/elasticsearch/elasticsearch:7.17.13   "/bin/tini -- /usr/l…"   elasticsearch    2 hours ago   Up 2 hours   0.0.0.0:9200->9200/tcp, 9300/tcp
skywalking-oap   apache/skywalking-oap-server:latest                     "bash docker-entrypo…"   skywalking-oap   2 hours ago   Up 2 hours   0.0.0.0:11800->11800/tcp, 1234/tcp, 0.0.0.0:12800->12800/tcp
skywalking-ui    apache/skywalking-ui:latest                             "bash docker-entrypo…"   skywalking-ui    2 hours ago   Up 2 hours   0.0.0.0:9000->8080/tcp

OAP is listening the correct ports

# docker port skywalking-oap
11800/tcp -> 0.0.0.0:11800
12800/tcp -> 0.0.0.0:12800

# nc -zv 127.0.0.1 11800
Connection to 127.0.0.1 port 11800 [tcp/*] succeeded!

# curl -v http://127.0.0.1:12800
*   Trying 127.0.0.1:12800...
* Connected to 127.0.0.1 (127.0.0.1) port 12800
> GET / HTTP/1.1
> Host: 127.0.0.1:12800
> User-Agent: curl/8.7.1
> Accept: */*

# tail -f /tmp/skywalking-agent.log
2025-02-16T19:37:36.962364-03:00  INFO skywalking_agent::module: Starting skywalking agent service_name="meu-servico" service_instance="[email protected]" skywalking_version=8 heartbeat_period=30 properties_report_period_factor=10

2025-02-16T19:37:36.963357-03:00 DEBUG skywalking_php_worker: Starting worker...
2025-02-16T19:37:36.963401-03:00 DEBUG skywalking_php_worker: Bind unix stream socket_file="/tmp/skywalking-agent/62e4a0df606bb.sock"

2025-02-16T19:37:36.964503-03:00 DEBUG skywalking_php_worker::reporter::reporter_grpc: Create Endpoint url="http://127.0.0.1:11800"
2025-02-16T19:37:36.964531-03:00 DEBUG skywalking_php_worker::reporter::reporter_grpc: Skywalking TLS info enable_tls=false ssl_trusted_ca_path="" ssl_key_path="" ssl_cert_chain_path=""

2025-02-16T19:37:36.965008-03:00  INFO connect: skywalking_php_worker::reporter::reporter_grpc: Skywalking server connected uri="http://127.0.0.1:11800/"

2025-02-16T19:37:36.965035-03:00  INFO skywalking_php_worker::reporter::reporter_grpc: Worker is ready...
2025-02-16T19:37:36.965271-03:00 DEBUG skywalking_php_worker: Report instance properties props=Properties { inner: 

{"Process No.": ["64055"], "OS Name": ["Mac OS X"], "language": ["php"], "hostname": ["KA00081"], "ipv4": ["192.168.0.15", "127.0.0.1", "127.0.2.2", "127.0.2.3", "172.16.0.2"]} }

2025-02-16T19:42:36.966095-03:00 DEBUG skywalking_php_worker: Report instance properties props=Properties { inner: {"Process No.": ["64055"], "OS Name": ["Mac OS X"], "language": ["php"], "hostname": ["KA00081"], "ipv4": ["192.168.0.15", "127.0.0.1", "127.0.2.2", "127.0.2.3", "172.16.0.2"]} }

skywalking-ui
The service_instance that we can see above in skywalking-agent.log is the same service_instance the we can see in the ui.

But with no data.

Example generate log in a GET::endpoint to test, but don't send any data to skywalking-ui.

Log::info("Loren ipsum, loren ipsum");

Has anyone experienced this?
Any suggestions on what it could be?

Answered by thiagoluna

Feb 18, 2025

I had to leave for Plan B.
I created a new Laravel application with PHP-FPM and Nginx, this time via docker and added oap, ui and elasticsearch in the same docker-compose. And I installed the agent via Dockerfile.

With Laravel running locally and running via php artisan serve, the agent did not capture anything.
Maybe because the artisan serve use his own built-in php.

I think that's why a new php service appeared in the Activity Monitor in addition to php-fpm when it started Laravel App via artisan serve.

But now, with the plan B, everything is working!

@jmjoy Thank you so much for your attention!

My project in GitHub to help anyone who needs some references in how to setup Skywalking in…

View full answer

jmjoy · 2025-02-17T01:05:14Z

jmjoy
Feb 17, 2025
Collaborator

It seems that there is nothing unusual. Check whether the time in the upper right corner of SkyWalking UI is recent, or set log_level to TRACE to see if there are any related logs.

2 replies

thiagoluna Feb 17, 2025
Author

@jmjoy thank you for your reply.
Yes, the time in the upper right corner of SkyWalking UI was recent.

Set log_level to TRACE. I did many GET requests, but no related logs.

2025-02-17T11:28:04.670753-03:00  INFO skywalking_agent::module: Starting skywalking agent service_name="meu-servico" service_instance="[email protected]" skywalking_version=8 heartbeat_period=30 properties_report_period_factor=10
2025-02-17T11:28:04.673325-03:00 DEBUG skywalking_php_worker: Starting worker...
2025-02-17T11:28:04.673472-03:00 DEBUG skywalking_php_worker: Bind unix stream socket_file="/tmp/skywalking-agent/62e575512eaaf.sock"
2025-02-17T11:28:04.674715-03:00 DEBUG skywalking_php_worker::reporter::reporter_grpc: Create Endpoint url="http://127.0.0.1:11800"
2025-02-17T11:28:04.6748-03:00 DEBUG skywalking_php_worker::reporter::reporter_grpc: Skywalking TLS info enable_tls=false ssl_trusted_ca_path="" ssl_key_path="" ssl_cert_chain_path=""
2025-02-17T11:28:04.676547-03:00 DEBUG skywalking_php_worker: Report instance properties props=Properties { inner: {"OS Name": ["Mac OS X"], "Process No.": ["15905"], "language": ["php"], "ipv4": ["192.168.0.15", "127.0.0.1", "127.0.2.2", "127.0.2.3", "172.16.0.2"], "hostname": ["KA00081"]} }
2025-02-17T11:28:04.676801-03:00  INFO connect: skywalking_php_worker::reporter::reporter_grpc: Skywalking server connected uri="http://127.0.0.1:11800/"
2025-02-17T11:28:04.676847-03:00  INFO skywalking_php_worker::reporter::reporter_grpc: Worker is ready...
2025-02-17T11:33:04.671992-03:00 DEBUG skywalking_php_worker: Report instance properties props=Properties { inner: {"hostname": ["KA00081"], "ipv4": ["192.168.0.15", "127.0.0.1", "127.0.2.2", "127.0.2.3", "172.16.0.2"], "OS Name": ["Mac OS X"], "Process No.": ["15905"], "language": ["php"]} }
.

Is there anything else that I need to do in the API to allow the agent capture the logs and send them to OAP?

More logs below.

jmjoy Feb 18, 2025
Collaborator

The absence of TRACE logs indicates that the hook was not successful. There is no error in the logs, so it is difficult to troubleshoot. You might as well try setting skywalking_agent.enable_zend_observer to On.

thiagoluna · 2025-02-17T14:47:44Z

thiagoluna
Feb 17, 2025
Author

skywalking-ui conteiner log: Unexpected 4xx health check response:

com.linecorp.armeria.client.endpoint.healthcheck.HttpHealthChecker 232 [armeria-common-worker-epoll-2-2] WARN  [] - [creqId=baf73993, chanId=4b40e3d8, laddr=172.19.0.2:46256, raddr=skywalking-oap/172.19.0.4:12800][http://skywalking-oap:12800/healthcheck#HEAD] Unexpected 4xx health check response: [EOS, :status=404, content-type=text/plain; charset=utf-8, server=Armeria/1.29.3, date=Mon, 17 Feb 2025 13:53:46 GMT, content-length=35] A 4xx response generally indicates a misconfiguration of the client. Did you happen to forget to configure the HealthCheckedEndpointGroup's client options?

.
Check health from localhost

# curl -X GET "http://localhost:9200/_cat/health?v"                                    
epoch      timestamp cluster        status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time active_shards_percent
1739801643 14:14:03  docker-cluster yellow          1         1     46  46    0    0        5             0                  -                 90.2%

.
Testing connection with elasticsearch from inside skywalking-oap container

# docker exec -it skywalking-oap curl -X GET "http://elasticsearch:9200"               
  
{
  "name" : "0ebfa61beb23",
  "cluster_name" : "docker-cluster",
  "cluster_uuid" : "mcUQ96x8R0-1J8F2C11Ykw",
  "version" : {
    "number" : "7.17.13",
    "build_flavor" : "default",
    "build_type" : "docker",
    "build_hash" : "2b211dbb8bfdecaf7f5b44d356bdfe54b1050c13",
    "build_date" : "2023-08-31T17:33:19.958690787Z",
    "build_snapshot" : false,
    "lucene_version" : "8.11.1",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}  
  

# docker exec -it skywalking-oap curl -X GET "http://elasticsearch:9200/_cat/indices?v"

health status index                         uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   sw_zipkin_span-20250216       AHtXH1xrQ7OmjDahWaf2Xw   5   0          0            0      1.1kb          1.1kb
green  open   sw_zipkin_span-20250217       mF6aCZ3TQxWrzJB7l-guYg   5   0          0            0      1.1kb          1.1kb
yellow open   sw_metrics-all-20250216       veuhlqF2Q8myycDidKm6MQ   1   1         14          163     33.8kb         33.8kb
yellow open   sw_metrics-all-20250217       VlsyVJ0ZSM-VBZ2Qx-PZFw   1   1          3           77     64.5kb         64.5kb
green  open   .geoip_databases              gn4yAQ4qSHCna1bnazGsAQ   1   0         37            0     35.5mb         35.5mb
yellow open   sw_records-all-20250216       l3JHFPLARi2EtuhZlueXeQ   1   1          0            0       227b           227b
yellow open   sw_records-all-20250217       KBXMhAEaRpOleSbcTidhCw   1   1          0            0       227b           227b
green  open   sw_segment-20250216           gAx4eO2nQZq3vCykA39fhQ   5   0          0            0      1.1kb          1.1kb
green  open   sw_browser_error_log-20250217 w9PwpRe8QxCOUbLvRYC6Hg   5   0          0            0      1.1kb          1.1kb
green  open   sw_segment-20250217           zY-BcsA9RUabytR7h9ZgiA   5   0          0            0      1.1kb          1.1kb
yellow open   sw_management                 O6PrLvS0Qw2BkrVqGDvepQ   1   1        117            0    334.1kb        334.1kb
green  open   sw_browser_error_log-20250216 YmFA2Ha3S66Y4-sQU6WW-Q   5   0          0            0      1.1kb          1.1kb
green  open   sw_log-20250217               zx2OvTqLTvq84S-jfyWXew   5   0          0            0      1.1kb          1.1kb
green  open   sw_log-20250216               K01txfcOQcuc8MqoTB5Qvw   5   0          0            0      1.1kb          1.1kb

0 replies

thiagoluna · 2025-02-18T16:54:32Z

thiagoluna
Feb 18, 2025
Author

I had to leave for Plan B.
I created a new Laravel application with PHP-FPM and Nginx, this time via docker and added oap, ui and elasticsearch in the same docker-compose. And I installed the agent via Dockerfile.

With Laravel running locally and running via php artisan serve, the agent did not capture anything.
Maybe because the artisan serve use his own built-in php.

I think that's why a new php service appeared in the Activity Monitor in addition to php-fpm when it started Laravel App via artisan serve.

But now, with the plan B, everything is working!

@jmjoy Thank you so much for your attention!

My project in GitHub to help anyone who needs some references in how to setup Skywalking in a Laravel/PHP application.
https://github.com/thiagoluna/skywalking-php-laravel-docker.

1 reply

jmjoy Feb 19, 2025
Collaborator

php artisan serve is only for development mode.

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skywalking php agent doesn't send data to oap server. The UI doesn't have data. #13039

thiagoluna Feb 17, 2025

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