[ZOOKEEPER-4314] Can not get real exception when getChildren more than 4M

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.6.0
• Component/s: java client
• Assignee: Unassigned
• Reporter: Li Jian
• Created: 09/Jun/21 07:23
• Updated: 01/Jul/21 08:33

Description

When use zkClient or curator listener one zookeeper node more than 4M will cause endless loop，because they catch error code for KeeperException.Code.ConnectionLoss(-4) then will retry getChildren method after a monent。 The root reason for zookeeper invoke readLength method occor IOException for “Package len is out of range” but when deal with the following process zookeeper changed the real exception to ConnectionLoss。Can See the attached file

Issue Links

• is related to: ZOOKEEPER-4332 Cannot access children of znode that owns too many znodes
• is related to: ZOOKEEPER-1162 consistent handling of jute.maxbuffer when attempting to read large zk "directories"