![\"FoundationDB](\"https:\/\/www.gbase8.cn\/wp-content\/uploads\/2022\/07\/16571593861.png\")
<\/figure>\n\n\n\n\u901a\u8fc7fdbcli\u8fdb\u884c\u914d\u7f6e\uff0c\u6ce8\u610fRedundancy mode\u53d8\u6210\u4e86double\u3001<\/p>\n\n\n\n
\u89c2\u5bdfFault Tolerance\u4fe1\u606f\uff0c\u9700\u8981\u4e00\u70b9\u65f6\u95f4\u624d\u80fd\u4ece1machines \u53d8\u62101 machines\uff0c \u4e5f\u5c31\u662f\u5141\u8bb81\u53f0\u673a\u5668\u6545\u969c\u3002<\/p>\n\n\n\n
fdb> configure double\nConfiguration changed\nfdb> status\n\nUsing cluster file `\/etc\/foundationdb\/fdb.cluster'.\n\nConfiguration:\n Redundancy mode - double<\/span>\n Storage engine - memory-2\n Coordinators - 3\n Usable Regions - 1\n\nCluster:\n FoundationDB processes - 3 (less 0 excluded; 1 with errors)\n Zones - 3\n Machines - 3\n Memory availability - 3.0 GB per process on machine with least available\n >>>>> (WARNING: 4.0 GB recommended) <<<<<\n Fault Tolerance<\/span> - 1 machines\n Server time - 07\/07\/22 10:04:08\n\nData:\n Replication health - (Re)initializing automatic data distribution\n Moving data - unknown (initializing)\n Sum of key-value sizes - unknown\n Disk space used - 330 MB\n\nOperating space:\n Storage server - 1.0 GB free on most full server\n Log server - 20.8 GB free on most full server\n\nWorkload:\n Read rate - 16 Hz\n Write rate - 0 Hz\n Transactions started - 0 Hz\n Transactions committed - 0 Hz\n Conflict rate - 0 Hz\n\nBackup and DR:\n Running backups - 0\n Running DRs - 0\n\nClient time: 07\/07\/22 10:04:08\n\nfdb>\n<\/code><\/pre>\n\n\n\n<\/span>FoundationDB\u9ad8\u53ef\u7528\u6d4b\u8bd5<\/span><\/h2>\n\n\n\n<\/span>\u6a21\u62df\u6545\u969c<\/span><\/h3>\n\n\n\n\u6211\u4eec\u5c06210\u8282\u70b9\u7684\u670d\u52a1\u505c\u4e0b\u6765<\/p>\n\n\n\n
[root@rh7_210 ~]# systemctl stop foundationdb\n[root@rh7_210 ~]# systemctl status foundationdb\n\u25cf foundationdb.service - FoundationDB Key-Value Store\n Loaded: loaded (\/usr\/lib\/systemd\/system\/foundationdb.service; enabled; vendor preset: disabled)\n Active: inactive (dead) since Thu 2022-07-07 09:44:12 CST; 37s ago\n Process: 3871 ExecStart=\/usr\/lib\/foundationdb\/fdbmonitor --conffile \/etc\/foundationdb\/foundationdb.conf --lockfile \/var\/run\/fdbmonitor.pid --daemonize (code=exited, status=0\/SUCCESS)\n Main PID: 3873 (code=exited, status=0\/SUCCESS)\n\nJul 07 09:33:08 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"fdbmonitor\": Watching conf dir \/etc\/foundationdb\/ (2)\nJul 07 09:33:08 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"fdbmonitor\": Loading configuration \/etc\/foundationdb\/...db.conf\nJul 07 09:33:08 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"fdbmonitor\": Starting backup_agent.1\nJul 07 09:33:08 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"fdbmonitor\": Starting fdbserver.4500\nJul 07 09:33:08 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"backup_agent.1\": Launching \/usr\/lib\/foundationdb\/back...agent.1\nJul 07 09:33:08 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"fdbserver.4500\": Launching \/usr\/sbin\/fdbserver (3875)...er.4500\nJul 07 09:33:08 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"fdbserver.4500\": FDBD joined cluster.\nJul 07 09:44:12 rh7_210 systemd[1]: Stopping FoundationDB Key-Value Store...\nJul 07 09:44:12 rh7_210 fdbmonitor[3873]: LogGroup=\"default\" Process=\"fdbmonitor\": Received signal 15 (Terminated), shutting down\nJul 07 09:44:12 rh7_210 systemd[1]: Stopped FoundationDB Key-Value Store.\nHint: Some lines were ellipsized, use -l to show in full.\n<\/code><\/pre>\n\n\n\n<\/span>Status\u72b6\u6001<\/span><\/h3>\n\n\n\nstatus\u53ef\u4ee5\u770b\u5230\u53d8\u5316\uff0c\u5176\u4e2d10.0.2.210:4500 (unreachable)\uff0c \u4ee5\u53caFault Tolerance - 0 machines\u3002\u8868\u793a\u6709\u6545\u969c\u53d1\u751f\u4e86\uff0c\u4f46\u96c6\u7fa4\u8fd8\u662f\u53ef\u4ee5\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1\u7684\u3002<\/p>\n\n\n\n
fdb> status\n\nUsing cluster file `\/etc\/foundationdb\/fdb.cluster'.\n\nCould not communicate with all of the coordination servers.\n The database will remain operational as long as we\n can connect to a quorum of servers, however the fault\n tolerance of the system is reduced as long as the\n servers remain disconnected.\n\n 10.0.2.210:4500 (unreachable)\n 10.0.2.211:4500 (reachable)\n 10.0.2.212:4500 (reachable)\n\nConfiguration:\n Redundancy mode - double\n Storage engine - memory-2\n Coordinators - 3\n Usable Regions - 1\n\nCluster:\n FoundationDB processes - 2 (less 0 excluded; 1 with errors)\n Zones - 2\n Machines - 2\n Memory availability - 2.9 GB per process on machine with least available\n >>>>> (WARNING: 4.0 GB recommended) <<<<<\n Fault Tolerance - 0 machines\n Server time - 07\/07\/22 10:57:39\n\nData:\n Replication health - Healthy\n Moving data - 0.000 GB\n Sum of key-value sizes - 1 MB\n Disk space used - 346 MB\n\nOperating space:\n Storage server - 1.0 GB free on most full server\n Log server - 20.8 GB free on most full server\n\nWorkload:\n Read rate - 5 Hz\n Write rate - 0 Hz\n Transactions started - 0 Hz\n Transactions committed - 0 Hz\n Conflict rate - 0 Hz\n\nBackup and DR:\n Running backups - 0\n Running DRs - 0\n\nClient time: 07\/07\/22 10:57:35\n\nfdb>\n<\/code><\/pre>\n\n\n\n<\/span>\u96c6\u7fa4\u6b63\u5e38\u8bfb\u5199\u670d\u52a1<\/span><\/h3>\n\n\n\nfdb> writemode on\nfdb> set sign 1234\nCommitted (290192586305)\nfdb> get sign\n`sign' is `1234'\nfdb>\n<\/code><\/pre>\n\n\n\n<\/span>\u6a21\u62df\u518d\u6545\u969c\u4e00\u53f0<\/span><\/h3>\n\n\n\n\u5c06211\u670d\u52a1\u4e5f\u505c\u4e86\u3002<\/p>\n\n\n\n
[root@rh7_211 ~]# systemctl stop foundationdb\n[root@rh7_211 ~]#\n<\/code><\/pre>\n\n\n\n<\/span>\u96c6\u7fa4\u65e0\u6cd5\u5bf9\u5916\u63d0\u4f9b\u670d\u52a1<\/span><\/h3>\n\n\n\nfdb> status\n\nUsing cluster file `\/etc\/foundationdb\/fdb.cluster'.\n\nCould not communicate with a quorum of coordination servers:\n 10.0.2.210:4500 (unreachable)\n 10.0.2.211:4500 (unreachable)\n 10.0.2.212:4500 (reachable)\n\nfdb>\n<\/code><\/pre>\n\n\n\n<\/span>\u6545\u969c\u6062\u590d<\/span><\/h3>\n\n\n\n\u5c06210\uff0c211\u7684\u670d\u52a1\u6062\u590d\u542f\u52a8<\/p>\n\n\n\n
[root@rh7_210 ~]# systemctl start foundationdb\n[root@rh7_210 ~]#\n<\/code><\/pre>\n\n\n\n<\/p>\n\n\n\n
[root@rh7_211 ~]# systemctl start foundationdb\n[root@rh7_211 ~]#\n<\/code><\/pre>\n\n\n\n<\/span>\u670d\u52a1\u6062\u590d\u6b63\u5e38<\/span><\/h3>\n\n\n\nfdb> status\n\nUsing cluster file `\/etc\/foundationdb\/fdb.cluster'.\n\nConfiguration:\n Redundancy mode - double\n Storage engine - memory-2\n Coordinators - 3\n Usable Regions - 1\n\nCluster:\n FoundationDB processes - 3 (less 0 excluded; 1 with errors)\n Zones - 3\n Machines - 3\n Memory availability - 2.9 GB per process on machine with least available\n >>>>> (WARNING: 4.0 GB recommended) <<<<<\n Fault Tolerance - 1 machines\n Server time - 07\/07\/22 11:03:51\n\nData:\n Replication health - Healthy\n Moving data - 0.000 GB\n Sum of key-value sizes - 1 MB\n Disk space used - 336 MB\n\nOperating space:\n Storage server - 1.0 GB free on most full server\n Log server - 20.8 GB free on most full server\n\nWorkload:\n Read rate - 35 Hz\n Write rate - 0 Hz\n Transactions started - 8 Hz\n Transactions committed - 0 Hz\n Conflict rate - 0 Hz\n\nBackup and DR:\n Running backups - 0\n Running DRs - 0\n\nClient time: 07\/07\/22 11:03:51\n\nfdb> get sign\n`sign' is `1234'\nfdb>\n<\/code><\/pre>\n\n\n\n<\/span>Expand<\/span><\/h2>\n\n\n\n\u5b89\u88c5\u670d\u52a1\u4e0e\u524d\u9762\u4e00\u81f4\uff0c\u7136\u540e\u5c06IP\u4fee\u6539\uff0c\u91cd\u542f\u670d\u52a1.<\/p>\n\n\n\n
<\/span>\u6269\u5bb9coor\u548c\u6570\u636e\u8282\u70b9<\/span><\/h3>\n\n\n\n\u5c06\u8282\u70b9\u901a\u8fc7coordinator\u52a0\u5165\u96c6\u7fa4. \u547d\u4ee4\u548c\u8f93\u51fa\u53c2\u8003\u524d\u9762\u96c6\u7fa4\u5b89\u88c5\u90e8\u5206\u3002<\/p>\n\n\n\n
coordinatio\u662f\u53ef\u4ee5\u968f\u65f6\u8c03\u6574\u7684\uff0c\u4f46\u5efa\u8bae\u6570\u91cf\u4e3a\u5355\u6570\u3002<\/p>\n\n\n\n
coordinators 10.0.2.210:4500 10.0.2.211:4500<\/code><\/pre>\n\n\n\n<\/span>\u4ec5\u6269\u5bb9\u6570\u636e<\/span><\/h3>\n\n\n\n\u5982\u679c\u4e0d\u60f3\u589e\u52a0coor,\u90a3\u5c31\u5c06fdb.cluster\u914d\u7f6e\u6587\u4ef6\u8986\u76d6\u65b0\u8282\u70b9\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u7136\u540e\u91cd\u542f\u670d\u52a1\u5373\u53ef\u3002<\/p>\n\n\n\n
<\/span>\u7f29\u5bb9<\/span><\/h2>\n\n\n\n\u7528\u547d\u4ee4\u6267\u884c\u5373\u53ef\u3002\u5982\u679c\u5305\u542bcoor\uff0c\u5148\u7528coordinators\u547d\u4ee4\u8c03\u6574\u3002<\/p>\n\n\n\n
\u547d\u4ee4\u53ef\u4ee5\u662f\u67d0\u4e2aIP\u7684\u6240\u6709\u670d\u52a1\uff0c\u4e5f\u53ef\u4ee5\u662f\u67d0\u4e2aIP\u7684\u67d0\u4e2a\u7aef\u53e3\u3002<\/p>\n\n\n\n
exclude 1.2.3.4 1.2.3.5 1.2.3.6<\/code><\/pre>\n\n\n\n\u4e3a\u4e86\u907f\u514d\u670d\u52a1\u91cd\u542f\u540e\u5f71\u54cd\uff0c\u5efa\u8bae\u505c\u6b62\u670d\u52a1\u542f\u52a8\u3002\u5e76\u5378\u8f7d\u5220\u6389\u670d\u52a1\u3002<\/p>\n\n\n\n
systemctl stop foundationdb\nyum remove -e XXXXX\n\u6216\u8005\nrpm -e XXXX<\/code><\/pre>","protected":false},"excerpt":{"rendered":"\u5357\u5927\u901a\u7528GBase GCDW\u9ed8\u8ba4\u91c7\u7528foundationDB\u4f5c\u4e3a\u5143\u6570\u636e\u6570\u636e\u5e93\u670d\u52a1\uff0c\u672c\u6587\u4ecb\u7ecdFoundationDB\u7684\u96c6\u7fa4\u914d\u7f6e\u65b9\u6cd5\uff0c\u4ee5\u53ca\u9ad8\u53ef\u7528\u6d4b\u8bd5\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[119,115],"class_list":["post-8116","post","type-post","status-publish","format-standard","hentry","category-79","tag-foundationdb","tag-gcdw"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=8116"}],"version-history":[{"count":68,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8116\/revisions"}],"predecessor-version":[{"id":11992,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/8116\/revisions\/11992"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=8116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=8116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=8116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}