When doing tests, we create a ton of one-off clusters. This
turns out to be expensive and slow. Fixing it is surprisingly hard.
Fundamentally: If we're sharing clusters, we need to use different
indexes for each test, to avoid clashes. This changes index names.
As a side-effect, this reorders many partition-based things, like
the order keys are returned in. Thus, to fix this, we change a lot
of tests to no longer depend on the *order* in which strings are
returned.
Having done that, we can also discard the ModHasher behavior, since
that only existed to allow us to reliably predict partitioning.
The basic design is as follows: Instead of a cluster being a
[]*Command, a "shareable" cluster is now a []*Command plus some
flags, and a "cluster" is a pointer to a possibly-shared cluster,
plus a link to the specific test using this specific cluster,
and correspondingly, its test name suitably coerced to be a valid
index name prefix.
The "test.Cluster" object now has methods to allow retrieving an
index name, and also implemnts fmt.Formatter to let you use,
e.g., `%i` with it in Sprintf to get "the index name, plus an i".
(This works for everything but %p and %T.)
This allows us to consistently rework all the many things that
use index names in a persistent way.
We also have `MustUnshared` and `MustRunUnsharedCluster` methods
which allow us to specify that a given test needs its own cluster
for some reason. For instance, the tests that want to run backups
need their own isolated cluster, and the tests that want to close
or reopen nodes need their own cluster because a reopened cluster
won't have working GRPC for some reason.
On "closing" a shared cluster (actually the test-specific wrapper
that reflects a given sharing), we delete any indexes starting with
that test's index name prefix. Otherwise, the huge pile of open
indexes prevents `go test -race` from working on MacOS, where we
run out of address space too quickly.
This is fairly enormous but most of the individual changes are
fairly trivial things like replacing the string "i" with "c.Idx()".
We also tweaked a test that failed for me a couple of times to
not depend on sort order.
This adds a shard-based import endpoint which takes bitmap data for
all field types and imports data for the whole shard transactionally.
It uses the BitmapRewriter interface to try to intelligently allow for
setting and clearing bits simultaneously without multiple writes which
is especially helpful when ingesting into int-like fields, but also
allows clear-and-then-set behavior for set fields.
If non-primary host fails to process a request, retry on primary node.
conditions when we should not do this:
- no error
- we've aleady tried the primary
- we're making a status request to get the primary node...this
could lead to lock contention if we allow it to happen as we are
making an http request within an on going http request to discover
the primary node.
This also deletes the RemoveHost method and the associated test b/c
it is not used anywhere anymore and updates the returned error type.
i used this script, a little clunky but it got the job done
```bash
for file in `find . -type f -print | grep '\.go'`; do
sed '1,/^\/\/ limitations under the License.$/d' $file > $file.tmp;
result=`cat $file.tmp`
if [[ result != "" ]]; then
gofmt $file.tmp &> /dev/null;
if [[ $? == 0 ]]; then
mv $file.tmp $file && gofmt -w $file;
else
rm $file.tmp;
fi
else
rm $file.tmp;
fi
done
```
This migrates existing code from the old TranslateKey(s) endpoints to the newer CreateKeys and FindKeys endpoints.
The CreateKeys and FindKeys endpoints were created previously as the TranslateKeys endpoint had no way to behave sanely when the looked-up key did not exist (the parallel-arrays representation did not have a good way to represent a missing key).
This change also removes the old TranslateKey(s) functions from the translation stores.
It leaves a wrapper emulating the TranslateKey(s) endpoints so that old idk still works for now.
Attributes are unmaintained and unused.
They have become more of a liability than a benefit.
This change eliminates them from the codebase.
The only user-visible change (assuming that attrs are not used) is that the attrs field will no longer appear in row JSON.
