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NIFI-3304 removed unneeded Java 8 codecache info from Admin Guide 

This closes #1621

Signed-off-by: Andre F de Miranda <trixpan@users.noreply.github.com>
This commit is contained in:
Mike Moser 2017-03-24 21:44:07 +00:00 committed by Andre F de Miranda
parent 02d38b55bf
commit 2589df80ab
1 changed files with 0 additions and 11 deletions
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nifi-docs/src/main/asciidoc/administration-guide.adoc
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@ -1777,17 +1777,6 @@ take effect only after NiFi has been stopped and restarted.
configured recipients if the bootstrap determines that NiFi has unexpectedly died. configured recipients if the bootstrap determines that NiFi has unexpectedly died.
|==== |====
*Java 8 handling of codecache*
It has been observed in Java 8 runtime environments that performance can suddenly drop by more than an order of magnitude after days or weeks of otherwise ideal
behavior. This has only been observed under extremely high load and in cases where considerable Just in Time (JIT) compilation occurs. The core problem is the CodeCache becomes
full and is seemingly not properly garbage collected or grown. When this occurs JIT seems to no longer occur or involve considerable delays and performance drops.
This is easily overcome by ensuring the following lines are available in the _boostrap.conf_. By default they are there but commented. Uncomment them for maximum sustained throughput.
....
#java.arg.7=-XX:ReservedCodeCacheSize=256m
#java.arg.8=-XX:CodeCacheFlushingMinimumFreeSpace=10m
#java.arg.9=-XX:+UseCodeCacheFlushing
....
[[notification_services]] [[notification_services]]
Notification Services Notification Services
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