, Master is not reachable from $monitoring_server....output: Monitoring server remote_host1 is reachable, Master is not reachable from remote_host1. OK....Master is reachable from remote_host2! ---- test 6 ?...output: Monitoring server remote_host1 is reachable, Master is not reachable from remote_host1. OK....Monitoring server remote_host2 is reachable, Master is not reachable from remote_host2. OK.
, finalizer-reachable, unreachable}。...finalizer-reachable(f-reachable):表示不是reachable,但可通过某个finalizable对象可达 unreachable:对象不可通过上面两种途径可达 (1)新建对象首先处于...[reachable, unfinalized]状态(A) (2)随着程序的运行,一些引用关系会消失,导致状态变迁,从reachable状态变迁到f-reachable(B, C, D)或unreachable...由于是在活动线程中引用了该对象,该对象将变迁到(reachable, finalized)状态(K或J)。...该动作将影响某些其他对象从f-reachable状态重新回到reachable状态(L, M, N) (5)处于finalizable状态的对象不能同时是unreahable的,由第4点可知,将对象finalizable
. ==3893== still reachable: 1,048,576 bytes in 1 blocks. ==3893== suppressed: 0 bytes in 0...blocks. ==3893== Reachable blocks (those to which a pointer was found) are not shown. ==3893== To see...them, rerun with: --show-reachable=yes 那应该如何解决呢,当然是应该delete,但是类的静态成员在类的生命周期中是不能delete的,感兴趣的朋友可以试下...: 1,048,576 bytes in 1 blocks. ==3912== suppressed: 0 bytes in 0 blocks. ==3912== Reachable blocks...(those to which a pointer was found) are not shown. ==3912== To see them, rerun with: --show-reachable
* NOTE: This used to move the reachable objects into a reachable * set instead....All tracked * gc objects not in young or unreachable still have gc_refs = GC_REACHABLE....* reachable from an object we haven't gotten to yet...遍历函数传入访问者 visit_reachable函数: /* A traversal callback for move_unreachable. */ static int visit_reachable...); } } } 遍历 unreachable链表,将拥有finalizer的实例对象移到 finalizers链表中,并标示为 GC_REACHABLE。
* * Reachable authorities are the directly assigned authorities plus all authorities...* that are (transitively) reachable from them in the role hierarchy... * Reachable authorities: ROLE_A, ROLE_B, ROLE_C....are (transitively) reachable from them in the role hierarchy... * Reachable authorities: ROLE_A, ROLE_B, ROLE_C.
原则 3,开启 -show-reachable=yes 命令行选项 强烈建议在运行 Memcheck 时增加 -show-reachable=yes 命令行选项,它可以帮我们检查全局指针、static...但是,请注意,still reachable 可能会掩盖真正的内存泄漏 definitely lost,这就是作者为何强烈建议开启 reachable 命令行选项的原因。...所以,作者强烈建议养成在进程结束之前优雅的释放掉静态/全局指针、做好资源的清理工作的良好编程习惯,并在使用 Memcheck 时开启 reachable 参数,竭尽所能的消灭 still reachable...Memcheck 四种指针丢失情形的代码演示 definitely lost 与 still reachable 代码演示 首先,我们先演示绝对丢失和 still reachable 这两种情况。...still reachable 掩盖 definitely lost 代码演示 最后来演示未释放全局或者静态指针导致 still reachable 掩盖了 definitely lost 报错的情况。
defined($ssh_reachable)) { exit 1; } @ARGV = @ORIG_ARGV; $exit_code = MHA::MasterFailover::main(..."--dead_master_ip=$dead_master->{ip}", "--dead_master_port=$dead_master->{port}", "--ssh_reachable...=$ssh_reachable", @ARGV ); 可以看出该脚本主要由 MasterMonitor 和 MasterFailover 两部分组成: MasterMonitor:MAH健康检查脚本入口..., $current_master->get_hostinfo() ) ); if ($ssh_reachable) { $log->warning("SSH is reachable...."); } else { $log->warning("SSH is NOT reachable."); } $func_rc = 0; }; if
RoleHierarchyImpl.java /** * Set the role hierarchy and pre-calculate for every role the set of all reachable...Pre-calculation * is done for performance reasons (reachable roles can then be calculated in O(1...in one step: the higher role * will become a key that references a set of the reachable lower roles.../** * For every higher role from rolesReachableInOneStepMap store all roles that are * reachable...from it in the map of roles reachable in one or more steps.
possibly lost: 0 bytes in 0 blocks ==15320== still reachable...suppressed: 0 bytes in 0 blocks ==15320== Reachable...found) are not shown. ==15320== To see them, rerun with: --leak-check=full --show-reachable...==13244== still reachable...==13244== Reachable
ip neigh list | show 169.254.0.55 dev eth0 lladdr fe:ee:7f:99:99:19 REACHABLE 10.0.0.1 dev eth0 lladdr...fe:ee:7f:99:99:19 REACHABLE 169.254.0.4 dev eth0 lladdr fe:ee:7f:99:99:19 REACHABLE 169.254.0.138 dev...eth0 lladdr fe:ee:7f:99:99:19 REACHABLE 169.254.0.15 dev eth0 lladdr fe:ee:7f:99:99:19 STALE 169.254.0.23...dev eth0 lladdr fe:ee:7f:99:99:19 REACHABLE 169.254.0.2 dev eth0 lladdr fe:ee:7f:99:99:19 STALE 169.254.0.47...ip neigh chg 172.16.0.76 dev eth0 nud reachable (17)删除设备上的一个 ARP 条目。
int]]: n, m = len(grid), len(grid[0]) i, j = start q = [start + [0]] reachable...i, j, s = q.pop(0) if pricing[0] <= grid[i][j] <= pricing[1]: reachable.append...in seen: q.append((i, j+1, s+1)) seen.add((i, j+1)) reachable...= sorted(reachable)[:k] return [x[2:] for x in reachable] 提交代码评测得到:耗时3336ms,占用内存68.3MB。
// 因此对象的状态又变成了(reachable, finalized)状态。...Thread.sleep(500); // 这里楼主说对象处于(reachable,finalized)状态应该是合理的。...又因为在finalize方法是执行了SAVE_HOOK=this这句话,本来是unreachable的对象, // 又变成reachable了。...= SAVE_HOOK) { //此时对象应该处于(reachable, finalized)状态 // 这句话会输出,注意对象由unreachable,经过finalize...; // 这句话让对象的状态由unreachable变成reachable,就是对象复活 SAVE_HOOK = this; } } 运行结果如下
sarama.NewSyncProducer error:kafka: client has run out of available brokers to talk to (Is your cluster reachable...这个提示里线索比较明显:Is your cluster reachable? 也就是:是否能连到集群?
我们可以使用reachable_nodes来编写is_connected: def is_connected(G): start = next(G.nodes_iter()) reachable...= reachable_nodes(G, start) return len(reachable) == len(G) is_connected通过调用nodes_iter来选择一个起始节点,...作为一个例子,我们分析从前面的reachable_nodes: def reachable_nodes(G, start): seen = set() stack = [start]...def is_connected(G): start = next(G.nodes_iter()) reachable = reachable_nodes(G, start) return...len(reachable) == len(G) 练习 3 :在我实现reachable_nodes时,你可能很困惑,因为向栈中添加所有邻居而不检查它们是否已访问,明显是低效的。
错误的信息为: Specified URL is not reachable 原因和问题解决 这是因为你的 xampp 服务器没有启动,你的 IntelliJ IDEA 无法校验连接。...如上图,我们已经配置了正确的路径,如果路径不正确的话,你将会得到错误信息为:Specified URL is not reachable。
20.10.14 4q34guc6hp2a5ok0g1zkjojyh docker-m3 Ready Active Reachable...20.10.14 4q34guc6hp2a5ok0g1zkjojyh docker-m3 Ready Active Reachable...20.10.14 4q34guc6hp2a5ok0g1zkjojyh * docker-m3 Ready Active Reachable...20.10.14 4q34guc6hp2a5ok0g1zkjojyh docker-m3 Ready Active Reachable...20.10.14 4q34guc6hp2a5ok0g1zkjojyh docker-m3 Down Active Reachable
不同的引用类型,主要体现的是对象的不同的可达性(reachable)状态和对垃圾收集的影响。...对象可达性分析 强可达(Strongly Reachable),就是当一个对象可以有一个或多个线程可以不通过各种引用访问到的情况。比如,我们新创建一个对象,那么创建它的线程对它就是强可达。...软可达(Softly Reachable),就是当我们只能通过软引用才能访问到对象的状态。...弱可达(Weakly Reachable),类似前面提到的,就是无法通过强引用或者软引用访问,只能通过弱引用访问时的状态。...幻象可达(Phantom Reachable),上面流程图已经很直观了,就是没有强、软、弱引用关联,并且finalize过了,只有幻象引用指向这个对象的时候。
29.243 * Clear FAIL state for node d6eb06e9d118c120d3961a659972a1d0191a8652: master without slots is reachable...36.336 * Clear FAIL state for node 1ba437fa1683a8caafd38ff977e5fbabdaf84fd6: master without slots is reachable...36.855 * Clear FAIL state for node d7942cfe636b25219c6d56aa72828fcfde2ee261: master without slots is reachable...22135:M 06 Sep 14:17:38.419 * Clear FAIL state for node e438a338e9d9834a6745c12931950da87e360ca2: is reachable... 06 Sep 14:17:57.890 * Clear FAIL state for node 7990d146cece7dc83eaf08b3e12cbebb2223f5f8: slave is reachable
若收到 ARP 回应的,表项状态就变为 Reachable。 若尝试了一定次数后没收到响应,表项即变为 Failed。...因此即可把该表项转为 Reachable 状态。通过这一机制,内核可减少 ARP 的通信需求。...涉及到的内核参数 以下列出了该机制中主要涉及的内核参数: 参数 含义 默认值 /proc/sys/net/ipv4/neigh/default/base_reachable_time Reachable...状态基础过期时间,每个表项过期时间是在[1/2base_reachable_time,3/2base_reachable_time]之间 30秒 /proc/sys/net/ipv4/neigh/default.../base_reachable_time_ms Reachable 状态基础过期时间,毫秒表示 30秒 /proc/sys/net/ipv4/neigh/default/gc_stale_time Stale
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