AtomicBoolean可以让一个线程等待另一个线程完成任务后再执行:
A boolean value that may be updated atomically. See the java.util.concurrent.atomic package specification for description of the properties of atomic variables. A...
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编程语言 时间:
2014-08-07 15:41:40
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232
安装Oracle 11.2.0.4 的RAC,在Grid 安装时报错:[INS-41112]Specified network interface doesnt maintain connectivity across cluster nodes首先尝试在节点间ping 各个IP 地址没有问题。因为...
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数据库 时间:
2014-08-07 15:40:10
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672
A cluster of computing systems is provided with guaranteed real-time access to data storage in a storage area network. Processes issue request for ban...
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Web程序 时间:
2014-08-07 12:34:09
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437
To navigate to the declaration of a class, method or variable used somewhere in the code, position the caret at the usage and press Ctrl+B. You may al...
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其他好文 时间:
2014-08-07 12:12:10
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315
题目:Given a string s1, we may represent it as a binary tree by partitioning it to two non-empty substrings recursively.Below is one possible represent....
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编程语言 时间:
2014-08-07 05:11:29
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334
1、首先要查看服务器的系统版本,是32位还是64位 uname?-a
Linux?AY131105092932706327Z?2.6.32-358.6.2.el6.x86_64?#1?SMP?Thu?May?16?20:59:36?UTC?2013?x86_64?x86_64?x86_64?GNU/Linux x86_6...
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系统相关 时间:
2014-08-06 23:19:32
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590
背景: 有时,由于当前网络不支持组播等种种原因,使用gmond默认的配置gmetad不能获取到各个客户端的全部数据,http://x.x.x.x/ganglia页面一个cluster组只能展示一台机器的性能图,此时可使用ganglia的单播功能。###########################...
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其他好文 时间:
2014-08-06 22:33:22
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414
题目:
The string "PAYPALISHIRING" is written in a zigzag pattern on a given
number of rows like this: (you may want to display this pattern in a fixed font for better legibility)
P A H N
A...
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其他好文 时间:
2014-08-06 14:59:41
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307
I think it is natural for an algorithm rookie that when facing a challenging problem, a rookie may fall into her\his algorithm dictionary - she focuse...
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其他好文 时间:
2014-08-06 14:36:21
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232
Commands useful for administrators of a hadoop cluster.balancerRuns a cluster balancing utility. An administrator can simply press Ctrl-C to stop the ...
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其他好文 时间:
2014-08-06 08:24:11
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345