Exception: Trying to access array offset on value of type null in /vendor/hprose/hprose/src/Hprose/Client.php:383 的排查分析
1、接口响应：Trying to access array offset on value of type null。如图1
图1
2、由于此接口基于 Hprose 请求 RPC 服务端。查看相应的运行日志。Exception: Trying to access array offset on value of type null in /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php:383。如图2
图2
2021-01-19 19:01:06 [10.42.22.195][-][-][error][Exception] Exception: Trying to access array offset on value of type null in /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php:383
Stack trace:
#0 /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php(477): Hprose\Client->decode('Es51"Trying to ...', Array, Object(stdClass))
#1 /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php(489): Hprose\Client->syncInvokeHandler('unBindAccount', Array, Object(stdClass))
#2 /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php(103): Hprose\Client->invokeHandler('unBindAccount', Array, Object(stdClass))
#3 /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php(608): Hprose\Client->Hprose\{closure}('unBindAccount', Array, Object(stdClass))
#4 /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php(438): Hprose\Client->invoke('unBindAccount', Array)
#5 /mcloud/www/channel-pub-api/common/logics/rpc/vtt/VttAppUser.php(77): Hprose\Client->__call('unBindAccount', Array)
#6 /mcloud/www/channel-pub-api/vtt/rests/vtt_app_user/DeleteAction.php(64): common\logics\rpc\vtt\VttAppUser->delete(Array)
#7 [internal function]: vtt\rests\vtt_app_user\DeleteAction->run('46da43905a1911e...')
#8 /mcloud/www/channel-pub-api/vendor/yiisoft/yii2/base/Action.php(94): call_user_func_array(Array, Array)
#9 /mcloud/www/channel-pub-api/vendor/yiisoft/yii2/base/Controller.php(157): yii\base\Action->runWithParams(Array)
#10 /mcloud/www/channel-pub-api/vendor/yiisoft/yii2/base/Module.php(528): yii\base\Controller->runAction('delete', Array)
#11 /mcloud/www/channel-pub-api/vendor/yiisoft/yii2/web/Application.php(103): yii\base\Module->runAction('v1/vtt-app-user...', Array)
#12 /mcloud/www/channel-pub-api/vendor/yiisoft/yii2/base/Application.php(386): yii\web\Application->handleRequest(Object(yii\web\Request))
#13 /mcloud/www/channel-pub-api/vtt/web/index.php(17): yii\base\Application->run()
#14 {main}
3、决定通过打印日志文件的形式排查问题。编辑 /mcloud/www/channel-pub-api/vendor/hprose/hprose/src/Hprose/Client.php
private function syncInvokeHandler($name, array &$args, stdClass $context) {
$request = $this->encode($name, $args, $context);
$beforeFilterHandler = $this->beforeFilterHandler;
$response = $beforeFilterHandler($request, $context);
file_put_contents(Yii::getAlias('@runtime') . '/vendor-hprose-hprose-src-Hprose-Client-response-' . microtime(true) . '-' . mt_rand() . '.txt', print_r($response, true), FILE_APPEND | LOCK_EX);
file_put_contents(Yii::getAlias('@runtime') . '/vendor-hprose-hprose-src-Hprose-Client-args-' . microtime(true) . '-' . mt_rand() . '.txt', print_r($args, true), FILE_APPEND | LOCK_EX);
file_put_contents(Yii::getAlias('@runtime') . '/vendor-hprose-hprose-src-Hprose-Client-context-' . microtime(true) . '-' . mt_rand() . '.txt', print_r($context, true), FILE_APPEND | LOCK_EX);
return $this->decode($response, $args, $context);
}
4、当 RPC 服务端响应成功时，查看文件：vendor-hprose-hprose-src-Hprose-Client-response-1611058217.4824-543667088.txt
Rm3{s4"code"i99999;s7"message"s9"三方平台绑定失败！"s4"data"a{}}z
5、当 RPC 服务端响应成功时，查看文件：vendor-hprose-hprose-src-Hprose-Client-args-1611058217.4831-887085467.txt
Array
(
[0] => Array
(
[password] => b4260bf3006f7563708c1ca4e1c4cb62%2C8c16f7071ded6692c10721d2ac2c2cbf
[channel_type_code] => vtt_toutiao_pro
[permission] => 2
[source_uuid] => 468e5e929edf30f4097ca89168decde9
[source] => scms
[account] => 61ffb6b5a2d64dcba10352d765c72908
[channelCode] => toutiao
[status] => 1
[group_id] => 015ce30b116ce86058fa6ab4fea4ac63
[platform_code] => vtt_toutiao_pro
[source_system] => scms
[source_group_id] => 015ce30b116ce86058fa6ab4fea4ac63
[source_user_token] => 468e5e929edf30f4097ca89168decde9
[origin_account_uuid] => 4ab9a31c5a4f11eb965d54ee75d2ebc1
)
)
6、当 RPC 服务端响应成功时，查看文件：vendor-hprose-hprose-src-Hprose-Client-context-1611058217.4836-1374300614.txt
stdClass Object
(
[client] => Hprose\Http\Client Object
(
[host:Hprose\Http\Client:private] => rpc.channel-pub-vtt.localhost
[path:Hprose\Http\Client:private] => /hprose/index
[secure:Hprose\Http\Client:private] =>
[proxy] =>
[keepAlive] => 1
[keepAliveTimeout] => 300
[header:Hprose\Http\Client:private] => Array
(
[Content-type] => application/hprose
)
[options:Hprose\Http\Client:private] => Array
(
[64] =>
[113] => 1
[42] => 1
[19913] => 1
[47] => 1
[99] => 1
)
[curl:Hprose\Http\Client:private] =>
[curlVersionLittleThan720:Hprose\Http\Client:private] =>
[results:Hprose\Http\Client:private] => Array
(
)
[curls:Hprose\Http\Client:private] => Array
(
)
[contexts:Hprose\Http\Client:private] => Array
(
)
[index:Hprose\Client:private] => 0
[uriList:Hprose\Client:private] => Array
(
[0] => http://rpc.channel-pub-vtt.localhost/hprose/index
)
[async:protected] =>
[uri] => http://rpc.channel-pub-vtt.localhost/hprose/index
[filters] => Array
(
)
[timeout] => 30000
[retry] => 10
[idempotent] =>
[failswitch] =>
[failround] => 0
[byref] =>
[simple] =>
[onError] =>
[onFailswitch] =>
[methodCache:Hprose\Client:private] => Array
(
)
[topics:Hprose\Client:private] =>
[id:Hprose\Client:private] =>
[invokeHandlers:Hprose\HandlerManager:private] => Array
(
)
[beforeFilterHandlers:Hprose\HandlerManager:private] => Array
(
)
[afterFilterHandlers:Hprose\HandlerManager:private] => Array
(
)
[defaultInvokeHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$name] => <required>
[&$args] => <required>
[$context] => <required>
)
)
[defaultBeforeFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
[defaultAfterFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
[invokeHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$name] => <required>
[&$args] => <required>
[$context] => <required>
)
)
[beforeFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
[afterFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
)
[userdata] => stdClass Object
(
)
[mode] => 0
[oneway] =>
[byref] =>
[simple] =>
[failswitch] =>
[idempotent] =>
[retry] => 10
[retried] => 0
[timeout] => 30000
[httpHeader] => Array
(
[Server] => nginx/1.10.1
[Date] => Tue, 19 Jan 2021 12:10:17 GMT
[Content-Type] => text/plain;charset=UTF-8
[Content-Length] => 74
[Connection] => keep-alive
[X-Debug-Tag] => 6006cc28c62e9
[X-Debug-Duration] => 689
[X-Debug-Link] => /debug/default/view?tag=6006cc28c62e9
)
)
7、当 RPC 服务端抛出异常时，查看文件：vendor-hprose-hprose-src-Hprose-Client-response-1611058702.7009-1892363890.txt。如图3
图3
Es51"Trying to access array offset on value of type null"z
8、当 RPC 服务端抛出异常时，查看文件：vendor-hprose-src-Hprose-Client-args-1611058702.7011-780493657.txt。
Array
(
[0] => Array
(
[origin_account_uuid] => 77d007c85a2311eb9df79988cc614e10
)
)
9、当 RPC 服务端抛出异常时，查看文件：vendor-hprose-hprose-src-Hprose-Client-context-1611058702.7012-1316008257.txt。
stdClass Object
(
[client] => Hprose\Http\Client Object
(
[host:Hprose\Http\Client:private] => vtt1.channel-pub.wjtest.chinamcloud.cn
[path:Hprose\Http\Client:private] => /hprose/index
[secure:Hprose\Http\Client:private] =>
[proxy] =>
[keepAlive] => 1
[keepAliveTimeout] => 300
[header:Hprose\Http\Client:private] => Array
(
[Content-type] => application/hprose
)
[options:Hprose\Http\Client:private] => Array
(
[64] =>
[113] => 1
[42] => 1
[19913] => 1
[47] => 1
[99] => 1
)
[curl:Hprose\Http\Client:private] =>
[curlVersionLittleThan720:Hprose\Http\Client:private] =>
[results:Hprose\Http\Client:private] => Array
(
)
[curls:Hprose\Http\Client:private] => Array
(
)
[contexts:Hprose\Http\Client:private] => Array
(
)
[index:Hprose\Client:private] => 0
[uriList:Hprose\Client:private] => Array
(
[0] => http://vtt1.channel-pub.wjtest.chinamcloud.cn/hprose/index
)
[async:protected] =>
[uri] => http://vtt1.channel-pub.wjtest.chinamcloud.cn/hprose/index
[filters] => Array
(
)
[timeout] => 30000
[retry] => 10
[idempotent] =>
[failswitch] =>
[failround] => 0
[byref] =>
[simple] =>
[onError] =>
[onFailswitch] =>
[methodCache:Hprose\Client:private] => Array
(
)
[topics:Hprose\Client:private] =>
[id:Hprose\Client:private] =>
[invokeHandlers:Hprose\HandlerManager:private] => Array
(
)
[beforeFilterHandlers:Hprose\HandlerManager:private] => Array
(
)
[afterFilterHandlers:Hprose\HandlerManager:private] => Array
(
)
[defaultInvokeHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$name] => <required>
[&$args] => <required>
[$context] => <required>
)
)
[defaultBeforeFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
[defaultAfterFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
[invokeHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$name] => <required>
[&$args] => <required>
[$context] => <required>
)
)
[beforeFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
[afterFilterHandler:protected] => Closure Object
(
[static] => Array
(
[self] => Hprose\Http\Client Object
*RECURSION*
)
[this] => Hprose\Http\Client Object
*RECURSION*
[parameter] => Array
(
[$request] => <required>
[$context] => <required>
)
)
)
[userdata] => stdClass Object
(
)
[mode] => 0
[oneway] =>
[byref] =>
[simple] =>
[failswitch] =>
[idempotent] =>
[retry] => 10
[retried] => 0
[timeout] => 30000
[httpHeader] => Array
(
[Server] => www.chinamcloud.com
[Date] => Tue, 19 Jan 2021 12:18:22 GMT
[Content-Type] => text/plain;charset=UTF-8
[Content-Length] => 58
)
)
10、因此，得出结论，这是 RPC 服务端的问题，有待于服务端解决。
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