limit

问题 Though I have done the following setting, and even restarted the server: # head /etc/security/limits.conf -n2 www-data soft nofile -1 www-data hard nofile -1 # /sbin/sysctl fs.file-max fs.file-max = 201558 The open files limitation of specific process is still 1024/4096: # ps aux | grep nginx root 983 0.0 0.0 85872 1348 ? Ss 15:42 0:00 nginx: master process /usr/sbin/nginx www-data 984 0.0 0.2 89780 6000 ? S 15:42 0:00 nginx: worker process www-data 985 0.0 0.2 89780 5472 ? S 15:42 0:00 nginx

问题 In Cassandra Wiki, it is said that there is a limit of 2 billion cells (rows x columns) per partition. But it is unclear to me what is a partition? Do we have one partition per node per column family, which would mean that the max size of a column family would be 2 billion cells * number of nodes in the cluster. Or will Cassandra create as much partitions as required to store all the data of a column family? I am starting a new project so I will use Cassandra 2.0. 回答1: With the advent of CQL3

问题 In Cassandra Wiki, it is said that there is a limit of 2 billion cells (rows x columns) per partition. But it is unclear to me what is a partition? Do we have one partition per node per column family, which would mean that the max size of a column family would be 2 billion cells * number of nodes in the cluster. Or will Cassandra create as much partitions as required to store all the data of a column family? I am starting a new project so I will use Cassandra 2.0. 回答1: With the advent of CQL3

问题 In Cassandra Wiki, it is said that there is a limit of 2 billion cells (rows x columns) per partition. But it is unclear to me what is a partition? Do we have one partition per node per column family, which would mean that the max size of a column family would be 2 billion cells * number of nodes in the cluster. Or will Cassandra create as much partitions as required to store all the data of a column family? I am starting a new project so I will use Cassandra 2.0. 回答1: With the advent of CQL3

问题 In Cassandra Wiki, it is said that there is a limit of 2 billion cells (rows x columns) per partition. But it is unclear to me what is a partition? Do we have one partition per node per column family, which would mean that the max size of a column family would be 2 billion cells * number of nodes in the cluster. Or will Cassandra create as much partitions as required to store all the data of a column family? I am starting a new project so I will use Cassandra 2.0. 回答1: With the advent of CQL3

问题 I am trying to run a gremlin query which groups vertices of a certain label into several groups by a certain field (assume it is 'displayName') and limit the number of groups to n and the number of items in each group also to n . Is there a way to achieve that? Since group().by() returns a list of the item, I tried using unfold() and then applying limit on the inner items. I managed to limit the number of groups that are returned, but couldn't limit the number of items in each group. Here's

问题 I am trying to run a gremlin query which groups vertices of a certain label into several groups by a certain field (assume it is 'displayName') and limit the number of groups to n and the number of items in each group also to n . Is there a way to achieve that? Since group().by() returns a list of the item, I tried using unfold() and then applying limit on the inner items. I managed to limit the number of groups that are returned, but couldn't limit the number of items in each group. Here's

问题 I looked at mod_bandwidth and mod_cban but they dont seem to satisfy my requirements. I am running a proxy server with apache 2.2 (mod_proxy, proxy_http, proxy_connect). I want to limit the "upload speed of the client". This is at the same time server download bandwidth, which should not limited. I want it per connection or even better per IP. To make it understandable: The use case is that I don't want bad people uplaoding bad data to bad places using my proxy server to "mask" themselves. Of

问题 I'm don't know the terms for this problem, the title might be a little bit misleading. I'm trying to create a overview of a 1 to many table but only want to select 1 example of the relation table. Car table name id Car colours car_id color A car can have many different colors. However I want to select just one color for the 'overview'. How can I do this? My tries result in a lot of results with multiple colors of the same car row. Preferably in one query if possible. Thanks in advance edit: I

问题 I have a class with a protected method Zig::punt() and I only want it to be accessible to the class "Avocado". In C++, you'll normally do this using the "friend Avocado" specifier, but this will cause all of the other variables to become accessible to "Avocado" class; I don't want this because this breaks encapsulation. Is what I want impossible, or does there already exist an obscure trick out there that I can use to achieve what I want? Or possibly alternative class design patterns that'll