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 join option was incorrectly exposed on the meta config. It should
be at the top-level as a string and propogate down to the meta config
as a slice.
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.
Dropping a meta node that had already been removed from the config
would fail because the raft.RemovePeers call would return an error
that the address was unknown. This change skips calling RemovePeer
if it doesn't exist.
Dropping a non-existing ID would hang for 10 seconds becuase the
meta.Client retryUntilExec didn't differentiate before command errors
and redirect errors. In this case, the command would return an error
but we'd try 10 more times and ultimately give up and return the error.
We now return immediately if the command returned and error because
retrying it will not succeed.
Finally, the join loop had no delay and would immediately try to join
the other nodes hundreds of times a second. We now pause a second if we've
tried every node at least once.
This fixes several issues related to the bind address and hostname:
* Allows bind addresses where a hostname or IP is not specified to
work correct and bind to all interfaces by default.
* Fixes the top-level "hostname" config option to allow overridding
all bind address hostnames. This allows a node to advertise a different
hostname than what is defined in the bind address setting.
* Adds the -hostname command-line option back to allow specifing
both -join and -hostname as command-line flags.
* Enforces a configuration precedence and overriding ability defined
as config file is overridden by env vars which are overriden by command-line
flags.
Fixes#5670#5671
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).
I was trying to create a Diagnostics Client in the tsdb package, but
IIRC importing `monitor` caused an import cycle of:
tsdb -> monitor -> cluster -> tsdb.
Moving Diagnostics to its own package will allow further use of
diagnostics.Client without running into import cycles.
Meta HTTP commands are cluster level requests and were showing up in
the main log creating a lot of noise. Switch them to use the ClusterTracing
config option which is disabled by default.
Jason Wilder
Gunnar
Edd Robinson
Mark Rushakoff
Jason Wilder
joelegasse
Mark Rushakoff
bastard
Ben Johnson
gunnaraasen
Jonathan A. Sternberg
Ross McDonald
Nicholas Katsaros
Ross McDonald
Chris H (CruftMaster)
Cory LaNou