Three comments said readiness failing before the server stops accepting gives
a load balancer the chance to withdraw the instance before its connections are
cut. Nothing between the two lines makes that possible: BeginDraining is
immediately followed by the shutdown, and a poller on a multi-second interval
never observes the flip.
On Kubernetes the endpoint is withdrawn when the Pod receives a
deletionTimestamp, concurrently with SIGTERM and independent of what the probe
returns, so the probe result is not the mechanism there either.
The order itself stands - reporting the state after the connections are cut is
worse - so the comments now say the order is necessary and not sufficient, and
that a window needs a configured delay that does not exist yet.
/health returned 200 without asking anything. Whatever it was meant to say, an
orchestrator reading it learned only that a process was accepting connections.
The two questions are not the same one, and the answers differ:
- /health stays a bare 200. It answers "should I restart you", and a process
whose database is unreachable does not want restarting - that turns one
outage into a crash loop and discards the connection pool, the cache and
every request in flight on the way.
- /ready is new. It answers "should I send you requests", fails while a
dependency is unreachable, and fails from the moment shutdown begins.
That last part is what the life-cycle phases bought. BeginDraining sits next to
BeginShutdown, before the server stops accepting, so a load balancer is told to
stop sending while this instance can still finish what it holds. Reversed - and
that is where it was - the connections are cut first and the probe reports it
afterwards.
The queue is deliberately not checked. Nothing on AdapterQueue answers "are you
reachable" without publishing something, the memory backend cannot fail, and a
queue that is down degrades logging rather than stopping requests: a reason to
alert, not a reason to leave the pool.
The cache probe writes and reads back rather than only reading. A cache that
answers "miss" for every key - a client pointed at the wrong server - is
indistinguishable from a healthy one on a read alone.
Every check runs behind a recover, and that is not defensive habit. The test for
"nothing configured" found the reason: GetCacheAdapter builds a wrapper around
whatever is configured and returns it even when nothing is, so the value is not
nil, the cache inside it is, and Set dereferences it. A nil check cannot see
that, and GetQueueAdapter behaves the same way. Whatever the cause, a probe is
the last thing that should be able to take the process down - the caller is
asking whether this instance is well, and killing it is the wrong reply.
The counter-proof compiles and fails: without the recover, the unconfigured case
panics rather than reporting two failed checks.
Four modules each called AuthInit and built their own instance, so which
one Runtime handed back was decided by whichever module initialised last.
The JwtToken key was also registered as an unbound method expression,
which GetHandlerFunc's type assertion can never match - the key was
registered and unusable at the same time.
The instance is now built once here and registered as a bound closure.
Modules read it back through GetAuthMiddleware, which is fatal rather
than nil when called before InitMiddleware has run: a process without a
JWT middleware should not reach the point of serving a request.
Only one call site needs the instance itself rather than the handler
(admin's /login, for LoginHandler); the thirty-odd MiddlewareFunc() call
sites are unchanged.
Claude-Session: https://claude.ai/code/session_01HPTAw8b8tAdFNFn8rKdPYx
thirdUpload dispatched on the source parameter and then built the same
zero-value ALiYunOSS in both branches, so source=3 could not have
reached qiniu even with credentials.
Neither branch had credentials to use. OXS.Setup is the initialisation
path and nothing in the repository called it, and no configuration field
existed to fill. The store is now taken from extend.fileStore, and a
provider that was not configured says so rather than producing the
provider's own complaint about an empty bucket name.
The two handlers passed errors.New("") to e.Error, discarding what
actually went wrong; they now pass the error.
Every import of the module changes, not only the seven packages that
moved out of sdk/pkg: Go requires the major version in the path from v2
on. Both happen in one pass —
go run github.com/go-admin-team/go-admin-core/tools/coreupgrade@v2.0.0 -w -v2 .
go mod tidy
— which is the command the release notes give, run here as a consumer
would run it. 210 imports across 95 files.
The compatibility shims this used are gone in v2, so the paths that
moved had to move: sdk/pkg/captcha, sdk/pkg/jwtauth and its user
package, sdk/pkg/response and sdk/pkg/casbin.
The count of unformatted files is unchanged at 34, none of them touched
by this: the tool reformats a file only if it was already gofmt clean,
so a migration cannot disappear into whitespace.
The exclusion list was a subquery against `$GenConfig.DBName`.sys_tables,
so it named the schema by hand. Generating from a schema that is not the
one holding sys_tables made the whole query fail, and because the
subquery read the table directly it also counted soft-deleted entries:
deleting a generator entry never handed its table back.
Read the registrations through the model on this connection instead. An
empty list skips the clause - NOT IN (NULL) is unknown for every row,
which would leave a fresh install with nothing to generate from.
pkg.Assert panics when its condition is false, so pkg.Assert(true,
"目前只支持mysql数据库") is a no-op. On postgres or sqlserver the code
generator did not report that it needs MySQL: DBTables returned an empty
list with a nil error, and DBColumns ran its query on the zero-value
*gorm.DB left over from the branch that never assigned, which is a nil
dereference rather than a message.
Assert the driver up front instead of asserting a constant in an else,
which also removes the placeholder *gorm.DB the fall-through relied on.
DBColumns.GetPage had no guard at all and gets the same one.
pkg.Assert panics when its condition is false, so
Assert(TableName == "", "table name cannot be empty") rejected every
request that carried a table name and let the empty one through. The
model layer repeated the inversion with if TableName != "" { return
error }, so either one alone was enough to break the endpoint.
Flip both, and hoist the model guard out of the mysql branch so it
matches GetList ten lines below, which had it right all along.
zhangwenjian