Hi team,

I have just started to learn kafka following
https://kafka.apache.org/quickstart

When I have started my zookeeper server and kafka server, I got a few
exceptions in the log which are all "KepperExcetion". Even when i created a
topic with name test I got the same exception. Can anyone throw some light
on the same.


Here is an excerpt from log
[2019-05-13 11:01:48,010] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x1 zxid:0x1f
txntype:-1 reqpath:n/a Error Path:/consumers Error:KeeperErrorCode =
NodeExists for /consumers (org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,073] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x2 zxid:0x20
txntype:-1 reqpath:n/a Error Path:/brokers/ids Error:KeeperErrorCode =
NodeExists for /brokers/ids
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,122] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x3 zxid:0x21
txntype:-1 reqpath:n/a Error Path:/brokers/topics Error:KeeperErrorCode =
NodeExists for /brokers/topics
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,161] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x4 zxid:0x22
txntype:-1 reqpath:n/a Error Path:/config/changes Error:KeeperErrorCode =
NodeExists for /config/changes
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,190] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x5 zxid:0x23
txntype:-1 reqpath:n/a Error Path:/admin/delete_topics
Error:KeeperErrorCode = NodeExists for /admin/delete_topics
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,215] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x6 zxid:0x24
txntype:-1 reqpath:n/a Error Path:/brokers/seqid Error:KeeperErrorCode =
NodeExists for /brokers/seqid
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,245] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x7 zxid:0x25
txntype:-1 reqpath:n/a Error Path:/isr_change_notification
Error:KeeperErrorCode = NodeExists for /isr_change_notification
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,270] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x8 zxid:0x26
txntype:-1 reqpath:n/a Error Path:/latest_producer_id_block
Error:KeeperErrorCode = NodeExists for /latest_producer_id_block
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,300] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0x9 zxid:0x27
txntype:-1 reqpath:n/a Error Path:/log_dir_event_notification
Error:KeeperErrorCode = NodeExists for /log_dir_event_notification
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,337] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0xa zxid:0x28
txntype:-1 reqpath:n/a Error Path:/config/topics Error:KeeperErrorCode =
NodeExists for /config/topics
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,366] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0xb zxid:0x29
txntype:-1 reqpath:n/a Error Path:/config/clients Error:KeeperErrorCode =
NodeExists for /config/clients
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,393] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0xc zxid:0x2a
txntype:-1 reqpath:n/a Error Path:/config/users Error:KeeperErrorCode =
NodeExists for /config/users
(org.apache.zookeeper.server.PrepRequestProcessor)
[2019-05-13 11:01:48,422] INFO Got user-level KeeperException when
processing sessionid:0x1000081a14b0000 type:create cxid:0xd zxid:0x2b
txntype:-1 reqpath:n/a Error Path:/config/brokers Error:KeeperErrorCode =
NodeExists for /config/brokers
(org.apache.zookeeper.server.PrepRequestProcessor)

Regards
Gagan

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