Stored scripts and ingest node configuration are important parts of the overall cluster state and should be included into a snapshot together with index templates and persistent settings if the includeGlobalState is set to true.
Closes#21184
These tests had a single method due to the fact that es didn't support resetting settings when they were first written. They can now be rewritten to have separate methods and an after method that resets the setting that is left behind.
This adds checks for expected warning headers to the query builder test
infrastructure. Tests that are adding deprecation warnings to the response
headers need to check those, otherwise the abstract base class for the test
class will complain at teardown.
This query is deprecated from 5.0 on. Similar to IndicesQueryBuilder we should
log a deprecation warning whenever this query is used.
Relates to #15760
The pending cluster state queue is used to hold incoming cluster states from the master. Currently the elected master doesn't publish to itself as thus the queue is not used. Sometimes, depending on the timing of disruptions, a pending cluster state can be put on the queue (but not committed) but another master before being isolated. If this happens concurrently with a master election the elected master can have a pending cluster state in its queue. This is not really a problem but it does confuse our assertions during tests as we check to see everything was processed correctly.
This commit takes a temporary step to clear (and fail) any pending cluster state on the master after it has successfully published a CS. Most notably this will happen when the master publishes the cluster state indicating it has just become the master.
Long term we are working to change the publishing mechanism to make the master use the pending queue just like other nodes, which will make this a non issue.
See https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+5.x+java9-periodic/509 for example.
Lucene 6.2 introduces the new `Analyzer.normalize` API, which allows to apply
only character-level normalization such as lowercasing or accent folding, which
is exactly what is needed to process queries that operate on partial terms such
as `prefix`, `wildcard` or `fuzzy` queries. As a consequence, the
`lowercase_expanded_terms` option is not necessary anymore. Furthermore, the
`locale` option was only needed in order to know how to perform the lowercasing,
so this one can be removed as well.
Closes#9978
Since we have the ingest node type, there is either IngestActionFilter or IngestProxyActionFilter registered, depending on whether the node is an ingest node or not. The special case that shortcuts the execution in case there are no filters is never exercised.
This change adds an option called `split_on_whitespace` which prevents the query parser to split free text part on whitespace prior to analysis. Instead the queryparser would parse around only real 'operators'. Default to true.
For instance the query `"foo bar"` would let the analyzer of the targeted field decide how the tokens should be splitted.
Some options are missing in this change but I'd like to add them in a follow up PR in order to be able to simplify the backport in 5.x. The missing options (changes) are:
* A `type` option which similarly to the `multi_match` query defines how the free text should be parsed when multi fields are defined.
* Simple range query with additional tokens like ">100 50" are broken when `split_on_whitespace` is set to false. It should be possible to preserve this syntax and make the parser aware of this special syntax even when `split_on_whitespace` is set to false.
* Since all this options would make the `query_string_query` very similar to a match (multi_match) query we should be able to share the code that produce the final Lucene query.
The `IndexService#newQueryShardContext()` method creates a QueryShardContext on
shard `0`, with a `null` reader and that uses `System.currentTimeMillis()` to
resolve `now`. This may hide bugs, since the shard id is sometimes used for
query parsing (it is used to salt random score generation in `function_score`),
passing a `null` reader disables query rewriting and for some use-cases, it is
simply not ok to rely on the current timestamp (eg. percolation). So this pull
request removes this method and instead requires that all call sites provide
these parameters explicitly.
This commit introduces a single-shard balance step for deciding on
rebalancing a single shard (without taking any other shards in the
cluster into account). This method will be used by the cluster
allocation explain API to explain in detail the decision process for
finding a more optimal location for a started shard, if one exists.
This doesn't make much sense to have at all, since a user can do a `GET`
request without a version of they want to get it unconditionally.
Relates to #20995
There may be cases where the XContentBuilder is not used and therefore it never gets
closed, which can cause a leak of bytes. This change moves the creation of the builder
into a try with resources block and adds an assertion to verify that we always consume
the bytes in our code; the try-with resources provides protections against memory leaks
caused by plugins, which do not test this.
Refactored ScriptType to clean up some of the variable and method names. Added more documentation. Deprecated the 'in' ParseField in favor of 'stored' to match the indexed scripts being replaced by stored scripts.
We throw this exception in some cases that the shard is closed, so we have to be consistent here. Otherwise we get logs like:
```
1> [2016-10-30T21:06:22,529][WARN ][o.e.i.IndexService ] [node_s_0] [test] failed to run task refresh - suppressing re-occurring exceptions unless the exception changes
1> org.elasticsearch.index.shard.IndexShardClosedException: CurrentState[CLOSED] operation only allowed when not closed
1> at org.elasticsearch.index.shard.IndexShard.verifyNotClosed(IndexShard.java:1147) ~[main/:?]
1> at org.elasticsearch.index.shard.IndexShard.verifyNotClosed(IndexShard.java:1141) ~[main/:?]
```
Before publishing a cluster state the master connects to the nodes that are added in the cluster state. When publishing fails, however, it does not disconnect from these nodes, leaving NodeConnectionsService out of sync with the currently applied cluster state.
The assertion assertMaster checks if all nodes have each other in the cluster state and the correct master set.
It is usually called after a disruption has been healed and ensureStableCluster been called. In presence of a low
publish timeout of 1s in this test class, publishing might not be fully done even after ensureStableCluster returns.
This commit adds an assertBusy to assertMaster so that the node has a bit more time to apply the cluster state from
the master, even if it's a bit slow.
Replication request may arrive at a replica before the replica's node has processed a required mapping update. In these cases the TransportReplicationAction will retry the request once a new cluster state arrives. Sadly that retry logic failed to call `ReplicationRequest#onRetry`, causing duplicates in the append only use case.
This commit fixes this and also the test which missed the check. I also added an assertion which would have helped finding the source of the duplicates.
This was discovered by https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+multijob-unix-compatibility/os=opensuse/174/
Relates #20211
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.
This fixes our cluster formation task to run REST tests against a mixed version cluster.
Yet, due to some limitations in our test framework `indices.rollover` tests are currently
disabled for the BWC case since they select the current master as the merge node which
happens to be a BWC node and we can't relocate all shards to it since the primaries are on
a higher version node. This will be fixed in a followup.
Closes#21142
Note: This has been cherry-picked from 5.0 and fixes several rest tests
as well as a BWC break in `OsStats.java`
The network disruption type "network delay" continues delaying existing requests even after the disruption has been cleared. This commit ensures that the requests get to execute right after the delay rule is cleared.
This test failed when the node that was shutting down was not yet removed from the cluster state on the master.
The cluster allocation explain API will not see any unassigned shards until the node shutting down is removed from the
cluster state.
Previously, if a node left the cluster (for example, due to a long GC),
during a snapshot, the master node would mark the snapshot as failed, but
the node itself could continue snapshotting the data on its shards to the
repository. If the node rejoins the cluster, the master may assign it to
hold the replica shard (where it held the primary before getting kicked off
the cluster). The initialization of the replica shard would repeatedly fail
with a ShardLockObtainFailedException until the snapshot thread finally
finishes and relinquishes the lock on the Store.
This commit resolves the situation by ensuring that when a shard is removed
from a node (such as when a node rejoins the cluster and realizes it no longer
holds the active shard copy), any snapshotting of the removed shards is aborted.
In the scenario above, when the node rejoins the cluster, it will see in the cluster
state that the node no longer holds the primary shard, so IndicesClusterStateService
will remove the shard, thereby causing any snapshots of that shard to be aborted.
Closes#20876
The cluster state on a node is updated either
- by incoming cluster states that are received from the active master or
- by the node itself when it notices that the master has gone.
In the second case, the node adds the NO_MASTER_BLOCK and removes the current master as active master from its cluster state. In one particular case, it would also update the list of nodes, removing the master node that just failed. In the future, we want a clear separation between actions that can be executed by a master publishing a cluster state and a node locally updating its cluster state when no active master is around.
This commit fixes responses to HEAD requests so that the value of the
Content-Length is correct per the HTTP spec. Namely, the value of this
header should be equal to the Content-Length if the request were not a
HEAD request.
This commit also fixes a memory leak on HEAD requests to the main action
that arose from the bytes on a builder not being released due to them
being dropped on the floor to ensure that the response to the main
action did not have a body.
Relates #21123
This commit adds preformatted tags to the Javadoc for
OsProbe#readSysFsCgroupCpuAcctCpuStat to render the form of the cpu.stat
file in a fixed-width font.
When acquiring cgroup stats, we check if such stats are available by
invoking a method areCgroupStatsAvailable. This method checks
availability by looking for existence of some virtual files in
/proc/self/cgroup and /sys/fs/cgroups. If these stats are not available,
the getCgroup method returns null. The OsProbeTests#testCgroupProbe did
not account for this. On some systems where tests run, the cgroup stats
might not be available yet this test method was expecting them to be (we
mock the relevant virtual file reads). This commit handles the execution
of this test on such systems by overriding the behavior of
OsProbe#areCgroupStatsAvailable. We test both the possibility of this
method returning true as well as false.
On some systems, cgroups will be available but not configured. And in
some cases, cgroups will be configured, but not for the subsystems that
we are expecting (e.g., cpu and cpuacct). This commit strengthens the
handling of cgroup stats on such systems.
Relates #21094
When system starts, it creates a temporary file named .es_temp_file to ensure the data directories are writable.
If system crashes after creating the .es_temp_file but before deleting this file, next time the system will not be able to start because the Files.createFile(resolve) will throw an exception if the file already exists.
Currently test that check that equals() and hashCode() are working as expected
for classes implementing them are quiet similar. This change moves common
assertions in this method to a common utility class. In addition, another common
utility function in most of these test classes that creates copies of input
object by running them through a StreamOutput and reading them back in, is moved
to ESTestCase so it can be shared across all these classes.
Closes#20629
Today the request interceptor can't support async calls since the response
of the async call would execute on a different thread ie. a client or listener
thread. This means in-turn that the intercepted handler is not executed with the
thread it was supposed to run and therefor can, if it's executing blocking
operations, potentially deadlock an entire server.
Before this commit `curl -XHEAD localhost:9200?pretty` would return
`Content-Length: 1` and a body which is fairly upsetting to standards
compliant tools. Now it'll return `Content-Length: 0` with an empty
body like every other `HEAD` request.
Relates to #21075
Refactors the BalancedShardsAllocator to create a method that
provides an allocation decision for allocating a single
unassigned shard or a single started shard that can no longer
remain on its current node. Having a separate method that
provides a detailed decision on the allocation of a single shard
will enable the cluster allocation explain API to directly
invoke these methods to provide allocation explanations.
This commit reduces classes to handle write
operation results in TransportWriteAction, this
comes at the cost of handling write operations in
TransportShardBulkAction.
Now parsing, mapping failures (which happen before
executing engine write operation) are communicated
via a failure operation type while transient operation
failures are set on the index/delete operations.
This experimental setting enables relocation of shards that are being snapshotted, which can cause the shard allocation failures. This setting is undocumented and there is no good reason to set it in production.
This commit cleans up the code handling load averages in OsProbe:
- remove support for BSD; we do not support this OS
- add Javadocs
- strengthen assertions and testing
- add debug logging for exceptional situation
Relates #21037
This change moves providing UnicastHostsProvider for zen discovery to be
pull based, adding a getter in DiscoveryPlugin. A new setting is added,
discovery.zen.hosts_provider, to separate the discovery type from the
hosts provider for zen when it is selected. Unfortunately existing
plugins added ZenDiscovery with their own name in order to just provide
a hosts provider, so there are already many users setting the hosts
provider through discovery.type. This change also includes backcompat,
falling back to discovery.type when discovery.zen.hosts_provider is not
set.
The max score returned in the response of a query does not take rescorer into account.
This change updates the max_score when a rescorer is used in a query.
Fixes#20651
This change adds a TypesQuery that checks if the disjunction of types should be rewritten to a MatchAllDocs query. The check is done only if the number of terms is below a threshold (16 by default and configurable via max_boolean_clause).
* Move all zen discovery classes into o.e.discovery.zen
This collapses sub packages of zen into zen. These all had just a couple
classes each, and there is really no reason to have the subpackages.
* fix checkstyle
Date math index/alias expressions in mget will now be resolved to a concrete single index instead of failing the mget item with an `IndexNotFoundException`.
Added also an integration test to verify multi index aliases do not fail the entire mget request.
Closes#17957
This commit removes an undocumented output parameter node_info_format
from the cluster stats and node stats APIs. Currently the parameter does
not even work as it is not whitelisted as an output parameter. Since
this parameter is not documented, we opt to just remove it.
Relates #21021
Areek Zillur
Igor Motov
Luca Cavanna
Christoph Büscher
Boaz Leskes
Adrien Grand
Jim Ferenczi
Simon Willnauer
Ali Beyad
Lee Hinman
Jason Tedor
Jay Modi
Jack Conradson
Yannick Welsch
Simon Willnauer
markharwood
Jun Ohtani
Britta Weber
Li Weinan
Tanguy Leroux
Nik Everett
Ryan Ernst
qwerty4030