Unless explicitly disabled, the parallel new collector is enabled
automatically as soon as the CMS collector is enabled:
void Arguments::set_cms_and_parnew_gc_flags() {
assert(
!UseSerialGC && !UseParallelOldGC && !UseParallelGC,
"Error");
assert(UseConcMarkSweepGC, "CMS is expected to be on here");
// If we are using CMS, we prefer to UseParNewGC,
// unless explicitly forbidden.
if (FLAG_IS_DEFAULT(UseParNewGC)) {
FLAG_SET_ERGO(bool, UseParNewGC, true);
}
While it's fine to be explicit, the UseParNewGC flag is deprecatd in JDK
8 and produces warning messages in JDK 9:
Java HotSpot(TM) 64-Bit Server VM warning: Option UseParNewGC was
deprecated in version 9.0 and will likely be removed in a future
release.
Thus, we can and should just remove this flag from the default JVM
options.
Relates #18767
The setting bootstrap.mlockall is useful on both POSIX-like systems
(POSIX mlockall) and Windows (Win32 VirtualLock). But mlockall is really
a POSIX only thing so the name should not be tied POSIX. This commit
renames the setting to "bootstrap.memory_lock".
Relates #18669
Recent changes adds an extra bin/ directory that contains Windows bat files in the normal Bin folder of elasticsearch. For exemple the script elasticsearch.bat is located in bin/bin/elasticsearch.bat instead of bin/elasticsearch.bat.
The distributions had their own copies of these extra files, which was a
carry over from maven. This change removes the duplicate files and
copies them from the root of the project.
closes#18597
This change tweaks the metadata version associated with the deb and rpm
packages. For rpm, dashes are allowed in versions, so we can use the
version as it already exists. For rpm, dashes are not allowed, so this
uses underscores instead. This only affects prerelease versions (eg
alpha/beta/rc), and usually someone doesn't specify the version, so the
inconsistency doesn't matter that much.
The default jvm.options file ships with the -server flag to force the
server VM on systems where the server VM is not the default. However,
the method of starting the JVM via the Windows service does not support
the command-line flags for selecting the VM because it starts from a
DLL that is specific to the server or client VM. Thus, we need to
filter these options from the jvm.options configuration file when
installing the Windows service.
Relates #18473
Today when parsing settings during bootstrap, we add a system property
for every Elasticsearch setting. Additionally, settings can be set via
system properties. This commit simplifies this situation.
- settings are no longer propogated to system properties
- system properties can not be used to set settings
- the "es." prefix on settings is no longer required (nor permitted)
- test logging has a dedicated system property (tests.logger.level)
Relates #18198
This change makes `gradle run` use the full zip distribution. Arguably
we could make it do the same when run inside plugins, but I started out
with this simple change. I am open to moving it into the RunTask itself
so that plugins will do this as well.
After considerable discussion, we have elected to set the default min
heap to 256m and the default max heap to 2g. This is to balance the
desire for a good out-of-the-box performance experience (default max
heap of 2g) with a good out-of-the-box experience running on machines
with limited resources or running multiple instances on a single modern
developer laptop (default min heap of 1g).
Benchmarking with the geonames data set shows that Elasticsearch truly
needs 2g of heap or the heap is a bottleneck for indexing rates. If our
goal is to satisfy the out-of-the-box-experience, we should prioritize
the out-of-the-box performance experience. Thus, the default heap should
be 2g until smaller heaps are not the bottleneck for indexing small data
sets.
This commit fixes the Debian package requires clause for bash. For the
RPM it is okay to specify the binary, but for the Debian package the
package name must be specified.
Today we encourage users to set their minimum and maximum heap settings
equal to each other to prevent the heap from resizing. Yet, the default
heap settings do not start Elasticsearch in this fashion. This commit
addresses this discrepancy by setting the default min heap to '512m' and
the default max heap to the default min heap.
Relates #16334
This commit adds a hard requirement to the RPM and Debian packages for
/bin/bash to be present, and adds a note regarding this to the migration
docs.
Relates #18259
In the plugin script we set the setting default.path.conf to control the
path to the configuration file. But the default directory might not
exist in which case we can run into exceptions. This commit restores a
guard against this directory not existing.
This commit switches the command-line scripts to use bash instead of sh
so that we can take advantage of features that bash provides like
arrays.
Relates #18251
In 7d1fd17172 the parsing of command-line
properties in the plugin script was removed. That commit missed
additional parsing of the properties for es.default.path.conf. This
commit removes that parsing and also replaces the use of eval with exec.
Relates #18239
The plugin script parses command-line options looking for Java system
properties and extracts these arguments to pass to the java command when
starting the JVM. Since elasticsearch-plugin allows arbitrary user
arguments to the JVM via ES_JAVA_OPTS, this parsing is unnecessary. This
commit removes this unnecessary
Relates #18207
In preparation for a unified release process, we need to be able to
generate the pom files independently of trying to actually publish. This
change adds back the maven-publish plugin just for that purpose. The
nexus plugin still exists for now, so that we do not break snapshots,
but that can be removed at a later time once snapshots are happenign
through the unified tools. Note I also changed the dir jars are written
into so that all our artifacts are under build/distributions.
Today we softly warn about running with the client VM. However, we
should really refuse to start in production mode if running with the
client VM as the performance of the client VM is too devastating for a
server application. This commit adds an option to jvm.options to ensure
that we are starting with the server VM (on all 32-bit non-Windows
platforms on server-class machines (2+ CPUs, 2+ GB physical RAM) this is
the default and on all 64-bit platforms this is the only option) and
adds a bootstrap check for the client VM.
Relates #18155
Today we specify the client option for the JVM when executing plugin
commands. Yet, this option does nothing on a 64-bit capable JDK as such
JDKs always select the Hotspot server VM. And for 32-bit JDKs, running
plugin commands with the server VM is okay. Thus, we should just remove
this unnecessary flag and just let the default VM be selected.
Relates #18142
The RPM init script did not include the check for `bin/elasticsearch` being
executable. This fix adds this checks and makes the tests pass.
This fixes the init script, so the tests pass on centos-6 again.
Today when restarting Elasticsearch using the start-stop-daemon on
Debian-based systems using System V init, we sleep for one second
between the process successfully stopping and starting the process
again. This sleep is unnecessary as the stop function retries forever
until the previous instance successfully terminates. This commit removes
that unncessary sleep.
Relates #17966
Exit with proper exit code (1) and an error message if elasticsearch
executable binary does not exists or has insufficient permissions to
execute.
Squashed commit of the following:
commit 9768d316303418ba4f9c96d3f87c376048a1b1bc
Author: Puru <tuladharpuru@gmail.com>
Date: Fri Apr 22 23:26:47 2016 +0545
Fixed ES_HOME typo
commit 79a2b0394297f8b02b6f71b71ba35ff79f1a684e
Author: Puru <tuladharpuru@gmail.com>
Date: Sun Apr 10 11:00:24 2016 +0545
Improve elasticsearch startup script test
Added improvement as per conversation in https://github.com/elastic/elasticsearch/pull/17082#issuecomment-206459613
commit 7be38e1fefd4baa6ccdbdc14745c00f6dc052e0c
Author: Puru <tuladharpuru@gmail.com>
Date: Wed Mar 23 13:23:52 2016 +0545
Add elasticsearch startup script test
The test ensures that elasticsearch startup script exists and is executable.
commit d10eed5c08260fa9c158a4487bbb3103a8d867ed
Author: Puru <tuladharpuru@gmail.com>
Date: Wed Mar 23 12:30:25 2016 +0545
Fixed IF syntax and failure message
commit 6dc66f616545572485b4d43bee05a4cbbf1bed72
Author: Puru <tuladharpuru@gmail.com>
Date: Sat Mar 12 11:08:11 2016 +0545
Fix exit code
Exit with proper exit code (1) and an error message if elasticsearch executable binary does not exists or has insufficient permissions to execute.
This changes our packaging to be explicit about the permissions of files
and directories in the tar.gz, rpm, and deb packages. This is to protect
against a user having an incorrectly set umask when installing.
Additionally, plugins that are installed now have their permissions set
by the plugin installation so that plugins that may have been packaged
with incorrect permissions are secured.
Resolves#17634
In Elasticsearch 5.0.0, by default unquoted field names in JSON will be
rejected. This can cause issues, however, for documents that were
already indexed with unquoted field names. To alleviate this, a system
property has been added that can be enabled so migration can occur.
This system property will be removed in Elasticsearch 6.0.0
Resolves#17674
This allows for a local file based deploy without needed nexus
auth information.
Also signing of packages has been added, either via gradle.properties
or using system properties as a fallback.
The property build.repository allows to configure another endpoint if no
snapshot build is done.
Fix creation of .asc file for tar.gz distribution
Closes#17405
This commit simplifies the default JVM options that ship with
Elasticsearch. In particular, expert settings that were previously
configurable via environment variables have been removed from the
default configuration file. Further, the heap size settings have been
moved to the top of the file with a clearer message that is in
concordance with their importance.
Closes#17714
This commit sets the bad_env_var to a default value of 0 so that in case
no bad environment variables are encountered the variable is still
defined and does not later cause a parse error in the execution of these
batch files.
Relates #17675
Jason Tedor
Stefan Scherer
Adrien Grand
Tanguy Leroux
Ryan Ernst
Lee Hinman
Radovan Ondas
Alexander Reelsen
Danilo Vaz
Nik Everett