网站可以放多少视频,高校网站开发,网站500,木鱼的网站help帮助命令
ls 查看命令 ls / ls /zookeeper ls /zookeeper/quota
/create 创建节点 命令格式#xff1a;create path data create /whq mytest 创建/whq节点#xff0c;内容为mytest
///get 查看节点内容 命令格式#xff1a;get path [zk: localhost:2182(CONNECTED)…help帮助命令
ls 查看命令 ls / ls /zookeeper ls /zookeeper/quota
/create 创建节点 命令格式create path data create /whq mytest 创建/whq节点内容为mytest
///get 查看节点内容 命令格式get path [zk: localhost:2182(CONNECTED) 18] get /whq test2 [zk: localhost:2182(CONNECTED) 16] get -s /whq test2 cZxid 0x100000006 ctime Mon Nov 18 16:42:19 CST 2019 mZxid 0x10000000b mtime Mon Nov 18 16:54:44 CST 2019 pZxid 0x10000000a cversion 4 dataVersion 1 aclVersion 0 ephemeralOwner 0x0 dataLength 5 numChildren 4 [zk: localhost:2182(CONNECTED) 17] get -w /whq test2
cZxid 创建节点的id ctime 节点的创建时间 mZxid 修改节点的id mtime 修改节点的时间 pZxid 子节点的id cversion : 子节点的版本 dataVersion 当前节点数据的版本 aclVersion 权限的版本 ephemeralOwner 判断是否是临时节点 dataLength 数据的长度 numChildren 子节点的数量
create -s 创建顺序节点 自动累加 [zk: localhost:2182(CONNECTED) 4] create -s /whq/seqt seq Created /whq/seqt0000000000 [zk: localhost:2182(CONNECTED) 5] create -s /whq/seqt seq1 Created /whq/seqt0000000001 [zk: localhost:2182(CONNECTED) 6] create -s /whq/seqt seq2 Created /whq/seqt0000000002 [zk: localhost:2182(CONNECTED) 7] create -s /whq/seqt seq Created /whq/seqt0000000003
[zk: localhost:2182(CONNECTED) 9] get /whq/seqt0000000000 seq
//set 修改节点 命令格式set path data [zk: localhost:2182(CONNECTED) 10] set /whq test2 [zk: localhost:2182(CONNECTED) 11] get /whq test2
///set -v 修改节点 乐观锁 [zk: localhost:2182(CONNECTED) 44] create /whq/versiont aaa1 Created /whq/versiont [zk: localhost:2182(CONNECTED) 47] get -s /whq/versiont aaa1 cZxid 0x10000001d ctime Mon Nov 18 17:03:54 CST 2019 mZxid 0x10000001d mtime Mon Nov 18 17:03:54 CST 2019 pZxid 0x10000001d cversion 0 dataVersion 0 aclVersion 0 ephemeralOwner 0x0 dataLength 4 numChildren 0 [zk: localhost:2182(CONNECTED) 50] set -v 0 /whq/versiont aaa2 [zk: localhost:2182(CONNECTED) 51] get -s /whq/versiont aaa2 cZxid 0x10000001d ctime Mon Nov 18 17:03:54 CST 2019 mZxid 0x100000021 mtime Mon Nov 18 17:04:53 CST 2019 pZxid 0x10000001d cversion 0 dataVersion 1 aclVersion 0 ephemeralOwner 0x0 dataLength 4 numChildren 0 [zk: localhost:2182(CONNECTED) 52] set -v 1 /whq/versiont aaa3 [zk: localhost:2182(CONNECTED) 53] set -v 1 /whq/versiont aaa4 version No is not valid : /whq/versiont #此时数据版本号已经为2此时再次修改节点则提交错误。
//delete 删除节点 命令格式delete path delete /whq/versiont
