`SHOW TAG VALUES` output has been modified to print the measurement name
for every measurement and to return the output in two columns: key and
value. An example output might be:
> SHOW TAG VALUES WITH KEY IN (host, region)
name: cpu
---------
key value
host server01
region useast
name: mem
---------
key value
host server02
region useast
`measurementsByExpr` has been taught how to handle reserved keys (ones
with an underscore at the beginning) to allow reusing that function and
skipping over expressions that don't matter to the call.
Fixes#5593.
This should fix#5865
This commit also removes the dependecy on the influxql package constants
that were used to write b1 and bz1 files and have changed since the
release of 0.10
... by extracting the db/rp from the given path.
Now that the code has "standardized" on extracting db/rp this way, the
ShardLocation struct is no longer necessary and thus has been removed.
We're back on the previous style of passing the path and walPath to
NewShard.
Previously, CQs with the same name would be stored in the last run map
the same way. This caused only one of the CQs to run because after the
first one ran it would update the last run time for all CQs with the
same name.
Add the database name to the CQ ID in the last run map to differentiate
between CQs in different databases.
Fixes#5814.
Fixes#5612, #5573 and #5518.
Using the MetaExecuter, queries that need to run on both data nodes
and optionally the meta store will be executed across all data nodes
in the cluster.
This fixes a couple of issues with starting meta-only nodes.
1. We were always calling CreateDataNode regardless of whether the the
node is running data services. We only call that now when node is
data enabled.
2. The node.json was created along-side creating the data node. Since
we are not creatinga a data node, this didn't happen anymore. There
wasn't a simple way to do this in one place so it's actually handle
for when creating a meta or a data node now. Since the ID assigned
to the node is the same regardless of role this works in all combinations
of roles.
3. The JoinMetaServer didn't return the ID of the joining node which
created some races when multiple nodes were joining. The join call now
returns that information to the caller.
Fixes#5754
The cache had some incorrect logic for determine when a series needed
to be deduplicated. The logic was checking for unsorted points and
not considering duplicate points. This would manifest itself as many
points (duplicate) points being returned from the cache and after a
snapshot compaction run, the points would disappear because snapshot
compaction always deduplicates and sorts the points.
Added a test that reproduces the issue.
Fixes#5719
Fixes#5653 and #5394.
Previously dropping retention policies did not propogate to local TSDB
shards. Instead, the retention policiess would just be removed from the
Meta Store.
This PR adds ensures that data associated with retention policies is
removed, when the retention policy is dropped.
Also, it cleans up a couple of other methods in `tsdb`, including the
requirement to provide (redundant) shardIDs when deleting databases.
Previously, meta.Client would drop the default retention policy when
trying to create a database with a retention policy. The RPC has now
been modified to include the desired retention policy in the
CreateDatabase command and have it use that retention policy information
instead of the default configuration when provided.
This also lowers the number of RPC calls for
CreateDatabaseWithRetentionPolicy to only a single RPC call instead of
two.
Protections have also been included so creating a retention policy with
different parameters will return an error similar to if you tried to
modify the retention policy separately.
Fixes#5696.
This removes the MetaServers property from node.json to eliminate one
of the four places those addresses are stored on disk. We always use
the values that come through the config (via file, env var or -join arg).
Since we are pinned to go 1.4.3, we're using the same dependency
manager as telegraf to make builds more reproducible. We'll re-evaluate
vendoring when we can move off of 1.4.3.
Previously, the lease redirect was invalid causing anything relying
on a lease for execution (eg. continuous queries) to cease functioning.
The name/nodeid URL param parsing has been moved up to the top of the
handler so the options can be forwarded on to the real leader.
X-Github-Closes: #5592
We were closing the cursor when we read the last block which caused
the internal state to be cleared. In a group by query, we seeked multiple
times so depending on the group by interval and how the data was laid out
in the blocks, we woudl close the cursor and the last block would get skipped.
Fixes#5193
This makes the following syntax possible:
CREATE CONTINUOUS QUERY mycq ON mydb
RESAMPLE EVERY 1m FOR 1h
BEGIN
SELECT mean(value) INTO cpu_mean FROM cpu GROUP BY time(5m)
END
The RESAMPLE option customizes how often an interval will be sampled and
the duration. The interval is customized with EVERY. Any intervals
within the resampling duration on a multiple of the resample interval
will be updated with the new results from the query.
The duration is customized with FOR. This determines how long an
interval will participate in resampling.
Both options are optional. If RESAMPLE is in the syntax, at least one of
the two needs to be given. The default for both is the interval of the
continuous query.
The service also improves tracking of the last run time and the logic of
when a query for an interval should be run. When determining the oldest
interval to run for a query, the continuous query service determines
what would have been the optimal time to perform the next query based on
the last run time. It then uses this time to determine the oldest
interval that should be run using the resample duration and will
resample all intervals between this time and the current time as opposed
to potentially forgetting about the last run in an interval if the
continuous query service gets delayed for some reason.
This removes the previous config options for customizing continuous
queries since they are no longer relevant and adds a new option of
customizing the run interval. The run interval determines how often the
continuous query service polls for when it should execute a query. This
option defaults to 1s, but can be set to 1m if the least common factor
of all continuous queries' intervals is a higher value (like 1m).
Quotes are not supposed to be significant in field keys, but are
significant in field values. The code as it currently was would
consider quotes in a key to be significant, but the later parser that
would unmarshal the fields from the byte string did not consider those
quotes to be significant. This meant that the following string:
"a=1
The line protocol parser would see a mismatched quote instead of a valid
input to the line protocol. But more nefariously, the following string:
"a=1"=2
The line protocol parser would ignore the first equals since it is
located in the quotation marks and think this was a valid input. It
would then pass it on to the field parser who would panic and die when
it tried to parse `1"=2` as a number.
Fixes#4076.
Changed non-interactive mode to send everything through the CLI's parser the same way the interactive mode works.
Added multiline support for -execute flag.
This commit fixes a deadlock that occurs during b1 flushes. It's
caused by taking locks in a different order. In the flush, b1
locks the engine and then bolt. However, in the query cursor, a
lock is obtained on bolt first (via `DB.Begin()`) and then the
engine is locked while reading from the engine's cache.
Jason Wilder
Jason Wilder
Jonathan A. Sternberg
Edd Robinson
Jonathan A. Sternberg
Ben Johnson
Joe LeGasse
Todd Persen
Mark Rushakoff
Jon Seymour
Ross McDonald
Chris Ramón
Mark Rushakoff
Gabriel Levine
bastard
gunnaraasen
Chris H (CruftMaster)
Cory LaNou
Seif Lotfy
Todd Persen
Nic Grayson
Nic Grayson
Tait Clarridge
Tony Pitale
Paul Dix
INADA Naoki
David Norton
Edward Robinson
Alex Russell-Saw
Philip O'Toole
Paulo Pires
nick.grange
Nathaniel Cook
Philip O'Toole
Eric Smekens