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Merge pull request #6697 from sfc-gh-ajbeamon/fix-tenant-map-range-read-bug 

Fix bug in tenant map range reads when the end key is outside of the tenant map range
This commit is contained in:
A.J. Beamon 2022-03-28 10:55:33 -07:00 committed by GitHub
parent 478ff1eb76 2475c4e2d6
commit 3cf0ea5950
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 46 additions and 6 deletions
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33
bindings/c/test/unit/unit_tests.cpp
View File

@ -20,6 +20,7 @@
// Unit tests for the FoundationDB C API.
#include "fdb_c_options.g.h"
#define FDB_API_VERSION 710
#include <foundationdb/fdb_c.h>
#include <assert.h>
@ -2430,6 +2431,38 @@ TEST_CASE("Tenant create, access, and delete") {
break;
}
while (1) {
StringRef begin = "\xff\xff/management/tenant_map/"_sr;
StringRef end = "\xff\xff/management/tenant_map0"_sr;
fdb_check(tr.set_option(FDB_TR_OPTION_SPECIAL_KEY_SPACE_ENABLE_WRITES, nullptr, 0));
fdb::KeyValueArrayFuture f = tr.get_range(FDB_KEYSEL_FIRST_GREATER_OR_EQUAL(begin.begin(), begin.size()),
FDB_KEYSEL_FIRST_GREATER_OR_EQUAL(end.begin(), end.size()),
/* limit */ 0,
/* target_bytes */ 0,
/* FDBStreamingMode */ FDB_STREAMING_MODE_WANT_ALL,
/* iteration */ 0,
/* snapshot */ false,
/* reverse */ 0);
fdb_error_t err = wait_future(f);
if (err) {
fdb::EmptyFuture f2 = tr.on_error(err);
fdb_check(wait_future(f2));
continue;
}
FDBKeyValue const* outKv;
int outCount;
int outMore;
fdb_check(f.get(&outKv, &outCount, &outMore));
CHECK(outCount == 1);
CHECK(StringRef(outKv->key, outKv->key_length) == StringRef(tenantName).withPrefix(begin));
tr.reset();
break;
}
fdb::Tenant tenant(db, reinterpret_cast<const uint8_t*>(tenantName.c_str()), tenantName.size());
fdb::Transaction tr2(tenant);

19
fdbclient/SpecialKeySpace.actor.cpp
View File

@ -2704,16 +2704,23 @@ Future<Optional<std::string>> FailedLocalitiesRangeImpl::commit(ReadYourWritesTr
}
ACTOR Future<RangeResult> getTenantList(ReadYourWritesTransaction* ryw, KeyRangeRef kr, GetRangeLimits limitsHint) {
KeyRangeRef tenantRange =
kr.removePrefix(SpecialKeySpace::getModuleRange(SpecialKeySpace::MODULE::MANAGEMENT).begin)
.removePrefix(TenantMapRangeImpl::submoduleRange.begin);
state KeyRef managementPrefix =
kr.begin.substr(0,
SpecialKeySpace::getModuleRange(SpecialKeySpace::MODULE::MANAGEMENT).begin.size() +
TenantMapRangeImpl::submoduleRange.begin.size());
std::map<TenantName, TenantMapEntry> tenants = wait(ManagementAPI::listTenantsTransaction(
&ryw->getTransaction(), tenantRange.begin, tenantRange.end, limitsHint.rows));
kr = kr.removePrefix(SpecialKeySpace::getModuleRange(SpecialKeySpace::MODULE::MANAGEMENT).begin);
TenantNameRef beginTenant = kr.begin.removePrefix(TenantMapRangeImpl::submoduleRange.begin);
TenantNameRef endTenant = kr.end;
if (endTenant.startsWith(TenantMapRangeImpl::submoduleRange.begin)) {
endTenant = endTenant.removePrefix(TenantMapRangeImpl::submoduleRange.begin);
} else {
endTenant = "\xff"_sr;
}
std::map<TenantName, TenantMapEntry> tenants =
wait(ManagementAPI::listTenantsTransaction(&ryw->getTransaction(), beginTenant, endTenant, limitsHint.rows));
RangeResult results;
for (auto tenant : tenants) {
@ -2783,7 +2790,7 @@ Future<Optional<std::string>> TenantMapRangeImpl::commit(ReadYourWritesTransacti
TenantNameRef endTenant = range.end().removePrefix(
SpecialKeySpace::getModuleRange(SpecialKeySpace::MODULE::MANAGEMENT).begin);
if (endTenant.startsWith(submoduleRange.begin)) {
endTenant = endTenant.removePrefix(submoduleRange.end);
endTenant = endTenant.removePrefix(submoduleRange.begin);
} else {
endTenant = "\xff"_sr;
}