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Posted to dev@zookeeper.apache.org by "Michael Han (JIRA)" <ji...@apache.org> on 2017/03/13 16:21:55 UTC
[jira] [Updated] (ZOOKEEPER-2091) Possible logic error in
ClientCnxnSocketNIO
[ https://issues.apache.org/jira/browse/ZOOKEEPER-2091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Han updated ZOOKEEPER-2091:
-----------------------------------
Fix Version/s: (was: 3.5.3)
3.5.4
> Possible logic error in ClientCnxnSocketNIO
> -------------------------------------------
>
> Key: ZOOKEEPER-2091
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2091
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Affects Versions: 3.4.6
> Reporter: Cheng
> Assignee: Rakesh R
> Fix For: 3.5.4, 3.6.0
>
> Attachments: ZOOKEEPER-2091.patch
>
>
> When SASL authentication is enabled, the ZooKeeper client will finally call ClientCnxnSocketNIO#sendPacket(Packet p) to send a packet to server:
> @Override
> void sendPacket(Packet p) throws IOException {
> SocketChannel sock = (SocketChannel) sockKey.channel();
> if (sock == null) {
> throw new IOException("Socket is null!");
> }
> p.createBB();
> ByteBuffer pbb = p.bb;
> sock.write(pbb);
> }
> One problem I can see is that the sock is non-blocking, so when the sock's output buffer is full(theoretically), only part of the Packet is sent out and the communication will break.
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