Repository: nifi Updated Branches: refs/heads/master 02d38b55b -> 2589df80a
NIFI-3304 removed unneeded Java 8 codecache info from Admin Guide This closes #1621 Signed-off-by: Andre F de Miranda <[email protected]> Project: http://git-wip-us.apache.org/repos/asf/nifi/repo Commit: http://git-wip-us.apache.org/repos/asf/nifi/commit/2589df80 Tree: http://git-wip-us.apache.org/repos/asf/nifi/tree/2589df80 Diff: http://git-wip-us.apache.org/repos/asf/nifi/diff/2589df80 Branch: refs/heads/master Commit: 2589df80ab1eb70327c6ed836f269967caee35fe Parents: 02d38b5 Author: Mike Moser <[email protected]> Authored: Fri Mar 24 21:44:07 2017 +0000 Committer: Andre F de Miranda <[email protected]> Committed: Tue Apr 11 02:05:20 2017 +1000 ---------------------------------------------------------------------- nifi-docs/src/main/asciidoc/administration-guide.adoc | 11 ----------- 1 file changed, 11 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/nifi/blob/2589df80/nifi-docs/src/main/asciidoc/administration-guide.adoc ---------------------------------------------------------------------- diff --git a/nifi-docs/src/main/asciidoc/administration-guide.adoc b/nifi-docs/src/main/asciidoc/administration-guide.adoc index d3abd3a..2de8387 100644 --- a/nifi-docs/src/main/asciidoc/administration-guide.adoc +++ b/nifi-docs/src/main/asciidoc/administration-guide.adoc @@ -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. |==== -*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 ---------------------
