* Decouple XContentBuilder from BytesReference
This commit removes all mentions of `BytesReference` from `XContentBuilder`.
This is needed so that we can completely decouple the XContent code and move it
into its own dependency.
While this change appears large, it is due to two main changes, moving
`.bytes()` and `.string()` out of XContentBuilder itself into static methods
`BytesReference.bytes` and `Strings.toString` respectively. The rest of the
change is code reacting to these changes (the majority of it in tests).
Relates to #28504
Using custom rules in the icu_collation filter can fail on Windows. If the rules are interpreted
as a file location, this leads to an InvalidPathException when trying to read the rules from a file.
This new snapshot mostly brings a change to TopFieldCollector which can now
early terminate collection when trackTotalHits is `false`.
As a follow-up, we should replace our usage of
`EarlyTerminatingSortingCollector` with this new option.
The main highlight of this new snapshot is that it introduces the opportunity
for queries to opt out of caching. In case a query opts out of caching, not only
will it never be cached, but also no compound query that wraps it will be
cached.
* Enhances exists queries to reduce need for `_field_names`
Before this change we wrote the name all the fields in a document to a `_field_names` field and then implemented exists queries as a term query on this field. The problem with this approach is that it bloats the index and also affects indexing performance.
This change adds a new method `existsQuery()` to `MappedFieldType` which is implemented by each sub-class. For most field types if doc values are available a `DocValuesFieldExistsQuery` is used, falling back to using `_field_names` if doc values are disabled. Note that only fields where no doc values are available are written to `_field_names`.
Closes#26770
* Addresses review comments
* Addresses more review comments
* implements existsQuery explicitly on every mapper
* Reinstates ability to perform term query on `_field_names`
* Added bwc depending on index created version
* Review Comments
* Skips tests that are not supported in 6.1.0
These values will need to be changed after backporting this PR to 6.x
Today we return a `String[]` that requires copying values for every
access. Yet, we already store the setting as a list so we can also directly
return the unmodifiable list directly. This makes list / array access in settings
a much cheaper operation especially if lists are large.
This change adds a fromXContent method to Settings that allows to read
the xcontent that is produced by toXContent. It also replaces the entire settings
loader infrastructure and removes the structured map representation. Future PRs will
also tackle the `getAsMap` that exposes the internal represenation of settings for
better encapsulation.
RangeQueryBuilder needs to perform too many `instanceof` checks in order to
check for `date` or `range` fields in order to know what it should do with the
shape relation, time zone and date format.
This commit adds those 3 parameters to the `rangeQuery` factory method so that
those instanceof checks are not necessary anymore.
Calls to Collator.getInstance without arguments returns a
collator that uses the system's default locale, which we don't
want because it makes behavior harder to reproduce. Change it
to always use the root locale instead.
For #25587
* Remove the _all metadata field
This change removes the `_all` metadata field. This field is deprecated in 6
and cannot be activated for indices created in 6 so it can be safely removed in
the next major version (e.g. 7).
We introduced a hack in #25885 to respect the cluster alias if available on the `_index` field. This is important if aggregations or other field data related operations are executed. Yet, we added a small hack that duplicated an implementation detail from the `_index` field data builder to make this work. This change adds a necessary but simple API change that allows us to remove the hack and only have a single implementation.
Most notable changes:
- better update concurrency: LUCENE-7868
- TopDocs.totalHits is now a long: LUCENE-7872
- QueryBuilder does not remove the boolean query around multi-term synonyms:
LUCENE-7878
- removal of Fields: LUCENE-7500
For the `TopDocs.totalHits` change, this PR relies on the fact that the encoding
of vInts and vLongs are compatible: you can write and read with any of them as
long as the value can be represented by a positive int.
UnicodeSetFilter was only allowed in the icu_folding token filter.
It seems useful to expose this setting in icu_normalizer token filter
and char filter.
* Upgrade icu4j for the ICU analysis plugin to 59.1
Lucene upgraded to 59.1 so we should use the same.
Closes#21425
* Add breaking change for the icu upgrade
This snapshot has faster range queries on range fields (LUCENE-7828), more
accurate norms (LUCENE-7730) and the ability to use fake term frequencies
(LUCENE-7854).
This commit renames all rest test files to use the .yml extension
instead of .yaml. This way the extension used within all of
elasticsearch for yaml is consistent.
Adds a new "icu_collation" field type that exposes lucene's
ICUCollationDocValuesField. ICUCollationDocValuesField is the replacement
for ICUCollationKeyFilter which has been deprecated since Lucene 5.
This changes the way we register pre-configured token filters so that
plugins can declare them and starts to move all of the pre-configured
token filters out of core. It doesn't finish the job because doing
so would make the change unreviewably large. So this PR includes
a shim that keeps the "old" way of registering pre-configured token
filters around.
The Lowercase token filter is special because there is a "special"
interaction between it and the lowercase tokenizer. I'm not sure
exactly what to do about it so for now I'm leaving it alone with
the intent of figuring out what to do with it in a followup.
This also renames these pre-configured token filters from
"pre-built" to "pre-configured" because that seemed like a more
descriptive name.
This is a part of #23658
This change simplifies how the rest test runner finds test files and
removes all leniency. Previously multiple prefixes and suffixes would
be tried, and tests could exist inside or outside of the classpath,
although outside of the classpath never quite worked. Now only classpath
tests are supported, and only one resource prefix is supported,
`/rest-api-spec/tests`.
closes#20240
We want to upgrade to Lucene 7 ahead of time in order to be able to check whether it causes any trouble to Elasticsearch before Lucene 7.0 gets released. From a user perspective, the main benefit of this upgrade is the enhanced support for sparse fields, whose resource consumption is now function of the number of docs that have a value rather than the total number of docs in the index.
Some notes about the change:
- it includes the deprecation of the `disable_coord` parameter of the `bool` and `common_terms` queries: Lucene has removed support for coord factors
- it includes the deprecation of the `index.similarity.base` expert setting, since it was only useful to configure coords and query norms, which have both been removed
- two tests have been marked with `@AwaitsFix` because of #23966, which we intend to address after the merge
Throw error when skip or do sections are malformed, such as they don't start with the proper token (START_OBJECT). That signals bad indentation, which would be ignored otherwise. Thanks (or due to) our pull parsing code, we were still able to properly parse the sections, yet other runners weren't able to.
Closes#21980
* [TEST] fix indentation in matrix_stats yaml tests
* [TEST] fix indentation in painless yaml test
* [TEST] fix indentation in analysis yaml tests
* [TEST] fix indentation in generated docs yaml tests
* [TEST] fix indentation in multi_cluster_search yaml tests
* Upgrade to Lucene 6.4.0
`ValueSource`s are now converted to `DoubleValueSource`s using the Lucene adapter made for the migration to the new API in 6.4.0.
This commit fixes an issue with deprecation logging for lenient
booleans. The underlying issue is that adding deprecation logging for
lenient booleans added a static deprecation logger to the Settings
class. However, the Settings class is initialized very early and in CLI
tools can be initialized before logging is initialized. This leads to
status logger error messages. Additionally, the deprecation logging for
a lot of the settings does not provide useful context (for example, in
the token filter factories, the deprecation logging only produces the
name of the setting, but gives no context which token filter factory it
comes from). This commit addresses both of these issues by changing the
call sites to push a deprecation logger through to the lenient boolean
parsing.
Relates #22696
This PR removes all leniency in the conversion of Strings to booleans: "true"
is converted to the boolean value `true`, "false" is converted to the boolean
value `false`. Everything else raises an error.
* Remove a checked exception, replacing it with `ParsingException`.
* Remove all Parser classes for the yaml sections, replacing them with static methods.
* Remove `ClientYamlTestFragmentParser`. Isn't used any more.
* Remove `ClientYamlTestSuiteParseContext`, replacing it with some static utility methods.
I did not rewrite the parsers using `ObjectParser` because I don't think it is worth it right now.
Set lucene version to 6.4.0-snapshot-ec38570 and update all the sha1s/license
Fix invalid combo after upgrade in query_string query. split_on_whitespace=false is disallowed if auto_generate_phrase_queries=true
Adapt the expectations of some tests to the new format of the Lucene explain output
At one point in the past when moving out the rest tests from core to
their own subproject, we had multiple test classes which evenly split up
the tests to run. However, we simplified this and went back to a single
test runner to have better reproduceability in tests. This change
removes the remnants of that multiplexing support.
Lucene 6.3 is expected to be released in the next weeks so it'd be good to give
it some integration testing. I had to upgrade randomized-testing too so that
both Lucene and Elasticsearch are on the same version.
Today we hold on to all possible tokenizers, tokenfilters etc. when we create
an index service on a node. This was mainly done to allow the `_analyze` API to
directly access all these primitive. We fixed this in #19827 and can now get rid of
the AnalysisService entirely and replace it with a simple map like class. This
ensures we don't create a gazillion long living objects that are entirely useless since
they are never used in most of the indices. Also those objects might consume a considerable
amount of memory since they might load stopwords or synonyms etc.
Closes#19828
This makes it obvious that these tests are for running the client yaml
suites. Now that there are other ways of running tests using the REST
client against a running cluster we can't go on calling the shared
client yaml tests "REST tests". They are rest tests, but they aren't
**the** rest tests.
This adds a header that looks like `Location: /test/test/1` to the
response for the index/create/update API. The requirement for the header
comes from https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.htmlhttps://tools.ietf.org/html/rfc7231#section-7.1.2 claims that relative
URIs are OK. So we use an absolute path which should resolve to the
appropriate location.
Closes#19079
This makes large changes to our rest test infrastructure, allowing us
to write junit tests that test a running cluster via the rest client.
It does this by splitting ESRestTestCase into two classes:
* ESRestTestCase is the superclass of all tests that use the rest client
to interact with a running cluster.
* ESClientYamlSuiteTestCase is the superclass of all tests that use the
rest client to run the yaml tests. These tests are shared across all
official clients, thus the `ClientYamlSuite` part of the name.
creation in the REST tests, as we no longer need it due
to index creation now waiting for active shard copies
before returning (by default, it waits for the primary of
each shard, which is the same as ensuring yellow health).
Relates #19450
Today throughout the codebase, catch throwable is used with reckless
abandon. This is dangerous because the throwable could be a fatal
virtual machine error resulting from an internal error in the JVM, or an
out of memory error or a stack overflow error that leaves the virtual
machine in an unstable and unpredictable state. This commit removes
catch throwable from the codebase and removes the temptation to use it
by modifying listener APIs to receive instances of Exception instead of
the top-level Throwable.
Relates #19231
Instead of plugins calling `registerTokenizer` to extend the analyzer
they now instead have to implement `AnalysisPlugin` and override
`getTokenizer`. This lines up extending plugins in with extending
scripts. This allows `AnalysisModule` to construct the `AnalysisRegistry`
immediately as part of its constructor which makes testing anslysis
much simpler.
This also moves the default analysis configuration into `AnalysisModule`
which is how search is setup.
Like `ScriptModule`, `AnalysisModule` no longer extends `AbstractModule`.
Instead it is only responsible for building `AnslysisRegistry`. We still
bind `AnalysisRegistry` but we only do so in `Node`. This is means it
is available at module construction time so we slowly remove the need to
bind it in guice.
This is the same as what Lucene does for its analysis factories, and we hawe
tests that make sure that the elasticsearch factories are in sync with
Lucene's. This is a first step to move forward on #9978 and #18064.
In 2.0 we added plugin descriptors which require defining a name and
description for the plugin. However, we still have name() and
description() which must be overriden from the Plugin class. This still
exists for classpath plugins. But classpath plugins are mainly for
tests, and even then, referring to classpath plugins with their class is
a better idea. This change removes name() and description(), replacing
the name for classpath plugins with the full class name.
Failing the build on deprecation warnings was removed in
19b3ec88af. This commit removes the
suppressed deprecation warnings so that their use is surfaced in the
build now.
Relates #18582
Lucene allows to create a ICUTokenizer with a special config argument
enabling the customization of the rule based iterator by providing
custom rules files.
This commit enable this feature. Users could provide a list of RBBI rule
files to ICU tokenizer.
closes#13146
* upgrades numerics to new Point format
* updates geo api changes
* adds GeoPointDistanceRangeQuery as XGeoPointDistanceRangeQuery
* cuts over to ES GeoHashUtils
We have both `Settings.settingsBuilder` and `Settings.builder` that do exactly
the same thing, so we should keep only one. I kept `Settings.builder` since it
has my preference but also it is the one that we use in examples of the Java API.
Today we allow to set all kinds of index level settings on the node level which
is error prone and difficult to get right in a consistent manner.
For instance if some analyzers are setup in a yaml config file some nodes might
not have these analyzers and then index creation fails.
Nevertheless, this change allows some selected settings to be specified on a node level
for instance:
* `index.codec` which is used in a hot/cold node architecture and it's value is really per node or per index
* `index.store.fs.fs_lock` which is also dependent on the filesystem a node uses
All other index level setting must be specified on the index level. For existing clusters the index must be closed
and all settings must be updated via the API on each of the indices.
Closes#16799
Closes#16964
Squashed commit of the following:
commit a23f9d2d29220991aa498214530753d7a5a148c6
Merge: eec9c4e 0b0a251
Author: Robert Muir <rmuir@apache.org>
Date: Mon Mar 7 04:12:02 2016 -0500
Merge branch 'master' into lucene6
commit eec9c4e5cd11e9c3e0b426f04894bb2a6dae4f21
Merge: bc67205 675d940
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 13:45:00 2016 -0500
Merge branch 'master' into lucene6
commit bc67205bdfe1526eae277ab7856fc050ecbdb7b2
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 09:56:31 2016 -0500
fix test bug
commit a60723b007ff12d97b1810cef473bd7b553a0327
Author: Simon Willnauer <simonw@apache.org>
Date: Fri Mar 4 15:35:35 2016 +0100
Fix SimpleValidateQueryIT to put braces around boosted terms
commit ae3a49d7ba7ced448d2a5262e5d8ec98671a9090
Author: Simon Willnauer <simonw@apache.org>
Date: Fri Mar 4 15:27:25 2016 +0100
fix multimatchquery
commit ae23fdb88a8f6d3fb7ba60fd1aaf3fd72d899aa5
Author: Simon Willnauer <simonw@apache.org>
Date: Fri Mar 4 15:20:49 2016 +0100
Rewrite DecayFunctionScoreIT to be independent of the similarity used
This test relied a lot on the term scoring and compared scores
that are dependent on the similarity. This commit changes the base query
to be a predictable constant score query.
commit 366c2d518c35d31251033f1b6f6a93f6e2ae327d
Author: Simon Willnauer <simonw@apache.org>
Date: Fri Mar 4 14:06:14 2016 +0100
Fix scoring in tests due to changes to idf calculation.
Lucene 6 uses a different default similarity as well as a different
way to calculate IDF. In contrast to older version lucene 6 uses docCount per field
to calculate the IDF not the # of docs in the index to overcome the sparse field
cases.
commit dac99fd64ac2fa71b8d8d106fe68825e574c49f8
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 08:21:57 2016 -0500
don't hardcoded expected termquery score
commit 6e9f340ba49ab10eed512df86d52a121aa775b0f
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 08:04:45 2016 -0500
suppress deprecation warning until migrated to points
commit 3ac8908424b3fdad44a90a4f7bdb3eff7efd077d
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 07:21:43 2016 -0500
Remove invalid test: all commits have IDs, and its illegal to do this.
commit c12976288124ad1a26467e7e848fb810548e7eab
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 07:06:14 2016 -0500
don't test with unsupported back compat
commit 18bbfe76128570bc70883bf91ff4c44c82d27817
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 07:02:18 2016 -0500
remove now invalid lucene 4 backcompat test
commit 7e730e572886f0ef2d3faba712e4256216ff01ec
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 06:58:52 2016 -0500
remove now invalid lucene 4 backwards test
commit 244d2ab6868ba5ac9e0bcde3c2833743751a25ec
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 06:47:23 2016 -0500
use 6.0 codec
commit 5f64d4a431a6fdaa1234adca23f154c2a1de8284
Author: Robert Muir <rmuir@apache.org>
Date: Fri Mar 4 06:43:08 2016 -0500
compile, javadocs, forbidden-apis, etc
commit 1f273cd62a7fe9ca8f8944acbbfc5cbdd3d81ccb
Merge: cd33921 29e3443
Author: Simon Willnauer <simonw@apache.org>
Date: Fri Mar 4 10:45:29 2016 +0100
Merge branch 'master' into lucene6
commit cd33921ac742ef9fb351012eff35f3c7dbda7264
Author: Robert Muir <rmuir@apache.org>
Date: Thu Mar 3 23:58:37 2016 -0500
fix hunspell dictionary loading
commit c7fdbd837b01f7defe9cb1c24e2ec65604b0dc96
Merge: 4d4190f d8948ba
Author: Robert Muir <rmuir@apache.org>
Date: Thu Mar 3 23:41:53 2016 -0500
Merge branch 'master' into lucene6
commit 4d4190fd82601aaafac6b8254ccb3edf218faa34
Author: Robert Muir <rmuir@apache.org>
Date: Thu Mar 3 23:39:14 2016 -0500
remove nocommit
commit 77ca69e288b1a41aa9595c921ed166c272a00ea8
Author: Robert Muir <rmuir@apache.org>
Date: Thu Mar 3 23:38:24 2016 -0500
clean up numericutils vs legacynumericutils
commit a466d696fbaad04b647ffbc0857a9439b583d0bf
Author: Robert Muir <rmuir@apache.org>
Date: Thu Mar 3 23:32:43 2016 -0500
upgrade spatial4j
commit 5412c747a8cfe638bacedbc8233163cb75cc3dc5
Author: Robert Muir <rmuir@apache.org>
Date: Thu Mar 3 23:19:28 2016 -0500
move to 6.0.0-snapshot-8eada27
commit b32bfe924626b87e540692375ece09e7c2edb189
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 11:30:09 2016 +0100
Fix some test compile errors.
commit 6ccde35e9840b03c68d1a2cd47c7923a06edf64a
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 11:25:51 2016 +0100
Current Lucene version is 6.0.0.
commit f62e1015d931b4cc04c778298a8fa1ba65e97ad9
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 11:20:48 2016 +0100
Fix compile errors in NGramTokenFilterFactory.
commit 6837c6eabf96075f743649da9b9b52dd39611c58
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 10:50:59 2016 +0100
Fix the edge ngram tokenizer/filter.
commit ccd7f070de5efcdfbeb34b9555c65c4990bf1ba6
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 10:42:44 2016 +0100
The missing value is now accessible through a getter.
commit bd3b77f9b28e5b05daa3d49683a9922a6baf2963
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 10:41:51 2016 +0100
Remove IndexCacheableQuery.
commit 05f3091c347aeae80eeb16349ac51d2b53cf86f7
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 10:39:43 2016 +0100
Fix compilation of function_score queries.
commit 81cda79a2431ac78f56b0cc5a5765387f662d801
Author: Adrien Grand <jpountz@gmail.com>
Date: Thu Mar 3 10:35:02 2016 +0100
Fix compile errors in BlendedTermQuery.
commit 70994ce8dd1eca0b995870974a38e20f26f96a7b
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 23:33:03 2016 -0500
add bug ID
commit 29d4f1a71f36f646b5a6060bed3db019564a279d
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 21:02:32 2016 -0500
easy .store changes
commit 5e1a1e6fd665fa455e88d3a8987362fad5f44bb1
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 20:47:24 2016 -0500
cleanups mostly around boosting
commit 333a669ec6c305ada5645d13ed1da0e19ec1d053
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 20:27:56 2016 -0500
more simple fixes
commit bd5cd98a1e089c866b6b4a5e159400b110140ce6
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 19:49:38 2016 -0500
more easy fixes and removal of ancient cruft
commit a68f419ee47da5f9c9ce5b372f01d707e902474c
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 19:35:02 2016 -0500
cutover numerics
commit 4ca5dc1fa47dd5892db00899032133318fff3116
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 18:34:18 2016 -0500
fix some constants
commit 88710a17817086e477c6c021ec346d0534b7fb88
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 18:14:25 2016 -0500
Add spatial-extras jar as a core dependency
commit c8cd6726583e5ce3f546ed355d4eca037164a30d
Author: Robert Muir <rmuir@apache.org>
Date: Wed Mar 2 18:03:33 2016 -0500
update to lucene 6 jars
This commit removes the ability to use string fields on indices created on or
after 5.0. Dynamic mappings now generate text fields by default for strings
but there are plans to also add a sub keyword field (in a future PR).
Most of the changes in this commit are just about replacing string with
keyword or text. Some tests have been removed because they existed because of
corner cases of string mappings like setting ignore-above on a text field or
enabling term vectors on a keyword field which are now impossible.
The plan is to remove strings entirely in 6.0.
The big win here is catching tests that are incorrectly named and will
be skipped by gradle, providing a false sense of security.
The whole thing takes about 10 seconds on my Macbook Air, not counting
compiling the test classes, which seems worth it. Because this runs as
a gradle task with propery UP-TO-DATE handling it can be skipped if the
tests haven't been changed which should save some time.
I chose to keep this in test:framework rather than a new subproject of
buildSrc because ESIntegTestCase and doesn't inroduce any additional
dependencies.
This change rewrites the entire settings filtering mechanism to be immutable.
All filters must be registered up-front in the SettingsModule. Filters that are comma-sparated are
not allowed anymore and check on registration.
This commit also adds settings filtering to the default settings recently added to ensure we don't render
filtered settings.
In the early days Elasticsearch used to use the index name as the index identity. Around 1.0.0 we introduced a unique index uuid which is stored in the index setting. Since then we used that uuid in a few places but it is by far not the main identifier when working with indices, partially because it's not always readily available in all places.
This PR start to make a move in the direction of using uuids instead of name by making sure that the uuid is available on the Index class (currently just a wrapper around the name) and as such also available via ShardRouting and ShardId.
Note that this is by no means an attempt to do the right thing with the uuid in all places. In almost all places it falls back to the name based comparison that was done before. It is meant as a first step towards slowly improving the situation.
Closes#16217
The rest test framework, because it used to be tightly integrated with
ESIntegTestCase, currently expects the addresses for the test cluster to
be passed using the transport protocol port. However, it only uses this
to then find the http address.
This change makes ESRestTestCase extend from ESTestCase instead of
ESIntegTestCase, and changes the sysprop used to tests.rest.cluster,
which now takes the http address.
closes#15459
Transitive dependencies can be confusing and hard to deal with when
conflicts arise between them. This change removes transitive
dependencies from elasticsearch, and forces any dependency conflicts to
be resolved manually, instead of automatically by gradle.
closes#14627
Lee Hinman
Adrien Grand
Jim Ferenczi
Henrik Lindström
Colin Goodheart-Smithe
Simon Willnauer
Md. Abdulla-Al-Sun
Martijn van Groningen
Jason Tedor
Andy Bristol
Matt Weber
David Causse
Nicholas Knize
Ryan Ernst
Nik Everett
Luca Cavanna
Daniel Mitterdorfer
Jun Ohtani
Tanguy Leroux
Simon Willnauer
Mike McCandless
Ali Beyad
Xu Zhang
Robert Muir
Boaz Leskes
Daniel Mitterdorfer
Michael McCandless