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Home Backend Development PHP Tutorial php里对redis的非空集合执行spop命令返回false

php里对redis的非空集合执行spop命令返回false

Jun 06, 2016 pm 08:07 PM
php redis

对同一个集合,执行$redis->scard( 'set:name' );结果是6W多。

但是对这个集合执行$redis->spop( 'set:name' );就返回false了。

集合名应该没有写错,因为代码运行了一段时间是正常的,突然之间就这样了。

请问有人遇到过相似的问题吗,如何解决?

<code>echo $redis->SCARD( 'news:id:needCrawlComment' ) . PHP_EOL;
echo $redis->SRANDMEMBER( 'news:id:needCrawlComment' ) . PHP_EOL;
var_dump( $redis->SPOP( 'news:id:needCrawlComment' ) ) . PHP_EOL;
exit;</code>
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输出结果

<code>60028
1166728333
bool(false)</code>
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Copy after login

回复内容:

对同一个集合,执行$redis->scard( 'set:name' );结果是6W多。

但是对这个集合执行$redis->spop( 'set:name' );就返回false了。

集合名应该没有写错,因为代码运行了一段时间是正常的,突然之间就这样了。

请问有人遇到过相似的问题吗,如何解决?

<code>echo $redis->SCARD( 'news:id:needCrawlComment' ) . PHP_EOL;
echo $redis->SRANDMEMBER( 'news:id:needCrawlComment' ) . PHP_EOL;
var_dump( $redis->SPOP( 'news:id:needCrawlComment' ) ) . PHP_EOL;
exit;</code>
Copy after login
Copy after login

输出结果

<code>60028
1166728333
bool(false)</code>
Copy after login
Copy after login

问题已解决,原因是内存超过1/2了,用sysctl vm.overcommit_memory=1解决了

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