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https://issues.apache.org/jira/browse/NIFI-4520?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Ting updated NIFI-4520:
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Description:
Since the beginning of 2017, we have setup 4 NiFi 1.1.2 cluster, one of them is
our BTS environment, one is our Prod environment, totally we have met the
problem more than 20 times, so we organize a team for researching after same
issue occurred on Prod.
After debugging and analysis, we found the cause is that every time cluster
node connect to cluster, cluster will get cluster data flow then compare with
local data flow, if it's different, cluster node can't connect to cluster. So
we start to research why the data flow is different next, and we found a case
which will cause this problem.
We open two browser tab, we called them A and B; tab A connect to node-1, at
first, we disconnect node-1 in tab B, next, we will add a processor on tab A,
finally we refresh tab A we will find node-1 can't connect to cluster due to
difference between local data flow and cluster data flow.
was:
Since the beginning of 2017, we have setup 4 NiFi cluster, one of them is our
BTS environment, one is our Prod environment, totally we have met the problem
more than 20 times, so we organize a team for researching after same issue
occurred on Prod.
After debugging and analysis, we found the cause is that every time cluster
node connect to cluster, cluster will get cluster data flow then compare with
local data flow, if it's different, cluster node can't connect to cluster. So
we start to research why the data flow is different next, and we found a case
which will cause this problem.
We open two browser tab, we called them A and B; tab A connect to node-1, at
first, we disconnect node-1 in tab B, next, we will add a processor on tab A,
finally we refresh tab A we will find node-1 can't connect to cluster due to
difference between local data flow and cluster data flow.
> cluster node can't sync data flow with cluster
> -----------------------------------------------
>
> Key: NIFI-4520
> URL: https://issues.apache.org/jira/browse/NIFI-4520
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Environment: Hosts: CentOS6.7_x86_64
> Reporter: Alex Ting
> Attachments: Prod_ERROR_LOG_2017_10_16.log
>
>
> Since the beginning of 2017, we have setup 4 NiFi 1.1.2 cluster, one of them
> is our BTS environment, one is our Prod environment, totally we have met the
> problem more than 20 times, so we organize a team for researching after same
> issue occurred on Prod.
> After debugging and analysis, we found the cause is that every time cluster
> node connect to cluster, cluster will get cluster data flow then compare with
> local data flow, if it's different, cluster node can't connect to cluster. So
> we start to research why the data flow is different next, and we found a case
> which will cause this problem.
> We open two browser tab, we called them A and B; tab A connect to node-1, at
> first, we disconnect node-1 in tab B, next, we will add a processor on tab
> A, finally we refresh tab A we will find node-1 can't connect to cluster due
> to difference between local data flow and cluster data flow.
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