[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-23 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Remy Maucherat  changed:

   What|Removed |Added

 Resolution|--- |WORKSFORME
 Status|REOPENED|RESOLVED

--- Comment #9 from Remy Maucherat  ---
Please do not reopen this bug report and use the user list if you would like to
investigate further.

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-23 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Pavana Sai Mahathi Vavilala  changed:

   What|Removed |Added

 Resolution|WORKSFORME  |---
 Status|RESOLVED|REOPENED

--- Comment #8 from Pavana Sai Mahathi Vavilala  
---
Thanks for re-testing the cluster setup.
As we are able to consistently reproduce the issue with 1-cpu configured nodes,
can you please confirm if you have tested with the same configuration?

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-21 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Mark Thomas  changed:

   What|Removed |Added

 Resolution|--- |WORKSFORME
 Status|REOPENED|RESOLVED

--- Comment #7 from Mark Thomas  ---
I've retested this with a 4 node cluster of 8.5.x using the defaults from the
documentation with dropTime as low as 1000ms with Adopt OpenJDK 14_36 and I
don't see this issue.

The evidence so far isn't pointing towards a Tomcat issue. If you want help
debugging this further, the users list is the place to seek such help.

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-16 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

--- Comment #6 from Pavana Sai Mahathi Vavilala  
---
Please ignore the following from the configuration posted above:

1) Filter attribute in: 
2) The custom ClusterListener.

These were inadvertently added in the comment and were not used during the
Tomcat Cluster testing.

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-16 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Pavana Sai Mahathi Vavilala  changed:

   What|Removed |Added

 Resolution|WORKSFORME  |---
 Status|RESOLVED|REOPENED

--- Comment #5 from Pavana Sai Mahathi Vavilala  
---
We reproduced this issue on Tomcat-only (v8.5.54 and v8.5.50) cluster setup
using Oracle JDK 12.0.2 (64-bit, java version "12.0.2" 2019-07-16) and JDK14
(64-bit, java version "14" 2020-03-17).

Cluster setup Details:
1) Nodes Configurations:
   Count : 2
   Resources : 1-cpu 2.29 GHZ, 1-core and 4 GB RAM.

2) Server.xml Configuration:
a) We used the default cluster settings as per Tomcat 8.5 docs
(https://tomcat.apache.org/tomcat-8.5-doc/cluster-howto.html) using
asynchronous replication mode: 

  
  



  



  
  
  
  
  
  


b) Also for non-default channelSendOptions:
 

In both instances, we reproduced the issue.

Note: We were unable to reproduce it with increased cpu resources (cpu count >=
2) or higher dropTime (>= 8500 ms).

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-13 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Mark Thomas  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |WORKSFORME

--- Comment #4 from Mark Thomas  ---
I've tested this with Adopt OpenJDK 8.242_b08 and 14_36 and I don't see the
memberDisappeared messages.

This looks like an environmental issue that becomes (more) obvious with newer
JDK versions rather than a Tomcat issue.

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-06 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Pavana Sai Mahathi Vavilala  changed:

   What|Removed |Added

 Status|NEEDINFO|NEW

--- Comment #3 from Pavana Sai Mahathi Vavilala  
---
The exact same setup works without any problem when configured with JDK 11.

However, with JDK 12 and 14, there are too many memberDisappeared messages
logged (almost for every 2 minutes).

Note:
In the JDK 12 environment, on increasing the dropTime to 1, we identified
that they are scarcely generated.

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-06 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Remy Maucherat  changed:

   What|Removed |Added

 Status|NEW |NEEDINFO

--- Comment #2 from Remy Maucherat  ---
Ok, so basically it still works 100% fine, but with an extra step + noise ? Can
you confirm the exact same setup works without that problem on Java 11 and has
the issue on Java 14 ?
[reminder: Java 11 is the supported release, and Java 14 will be the next
supported release]

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[Bug 64312] Many memberDisappeared messages are logged on all nodes of the cluster with JDK versions 12 or above, even when system is idle

2020-04-06 Thread bugzilla
https://bz.apache.org/bugzilla/show_bug.cgi?id=64312

Pavana Sai Mahathi Vavilala  changed:

   What|Removed |Added

 OS||All

--- Comment #1 from Pavana Sai Mahathi Vavilala  
---
The server.xml entry for Membership tag:



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