[ZooKeeper]常见的KeeperException

最新推荐文章于 2025-07-07 17:29:26 发布

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本文详细介绍了ZooKeeper客户端操作中可能出现的各种异常情况及其原因，包括节点存在、节点不存在、版本错误等异常，并针对每种操作（如create、delete等）提供了具体的异常类型说明。

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常见的KeeperException里，Connectionloss异常通常是可以忽略的，authfailed和session expired异常要求重新创建zookeeper客户端。其他种类的异常，根据实际业务逻辑来处理。

ZooKeeper.create

NodeExistsException NODEEXISTS - if a node with the same actual path already exists
NoNodeException NONODE - if the parent node does not exist
NoChildrenForEphemeralsException NOCHILDRENFOREPHEMERALS - if the parent node of the given path is ephemeral
InvalidACLException INVALIDACL - if the ACL is invalid, null, or empty
AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.delete

NoNodeException NONODE - if the nodes does not exist
BadVersionException BADVERSION - if the given version does not match the node's version
NotEmptyException NOTEMPTY - if the node has children
AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.multi

AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.exists

AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.getData

NodeExistsException NODEEXISTS - if no node with the given path exists
AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.setData

NodeExistsException NODEEXISTS - if no node with the given path exists
BadVersionException BADVERSION - if the given version does not match the node's version
AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.getACL

NodeExistsException NODEEXISTS - if no node with the given path exists
AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.setACL

NodeExistsException NODEEXISTS - if no node with the given path exists
BadVersionException BADVERSION - if the given version does not match the node's version
InvalidACLException INVALIDACL - if the ACL is invalid
AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS

ZooKeeper.getChildren
NodeExistsException NODEEXISTS - if no node with the given path exists
AuthFailedException AUTHFAILED
SessionExpiredException SESSIONEXPIRED
ConnectionLossException CONNECTIONLOSS