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[英]React Native iOS 8.1 app crashes when accessing a new view - ONLY when NOT using debugger
[英]Crashes when using Redux-Persist with React Native on iOS device
我一直在尝试在正在构建的React Native应用程序中使用redux-persist ,但是每当我这样做时,在iOS设备上运行时都会出现随机崩溃。 在模拟器上运行时,不会发生此问题。 它发生在redux-persist的版本4和5上。
根据sentry.io,错误为:
EXC_BREAKPOINT main fatalException 6, Code 2390738480, Subcode 8
我已经在所有发行的iOS 11版本上对此进行了测试。有时候,该错误在正常使用几天后就消失了,但随后又会反复出现,并且会再次出现。 此行为表明,崩溃仅在存储达到特定状态或变得太大时才会发生。 据我所知,事实并非如此-异步存储显然对iOS(与Android不同)没有大小限制。
sentry.io堆栈跟踪似乎没有提供任何线索,但是无论如何在这里:
JavaScriptCore 0x18e7fc630 bmalloc::Heap::allocateLarge(std::__1::lock_guard&, unsigned long, unsigned long) JavaScriptCore 0x18e7f9ea4 bmalloc::Allocator::allocateLarge(unsigned long) JavaScriptCore 0x18deb8a04 WTF::fastMalloc(unsigned long) JavaScriptCore 0x18dec9d50 WTF::StringImpl::createUninitialized(unsigned int, unsigned short*&) JavaScriptCore 0x18dec9bf8 WTF::StringBuilder::allocateBufferUpConvert(unsigned char const*, unsigned int) JavaScriptCore 0x18e7e76f0 WTF::StringBuilder::appendQuotedJSONString(WTF::String const&) JavaScriptCore 0x18e55a2cc JSC::Stringifier::appendStringifiedValue(WTF::StringBuilder&, JSC::JSValue, JSC::Stringifier::Holder const&, JSC::PropertyNameForFunctionCall const&) JavaScriptCore 0x18e55b354 JSC::Stringifier::Holder::appendNextProperty(JSC::Stringifier&, WTF::StringBuilder&) JavaScriptCore 0x18e55a5d4 JSC::Stringifier::appendStringifiedValue(WTF::StringBuilder&, JSC::JSValue, JSC::Stringifier::Holder const&, JSC::PropertyNameForFunctionCall const&) JavaScriptCore 0x18e5594e0 JSC::Stringifier::stringify(JSC::Handle) JavaScriptCore 0x18e55d804 JSC::JSONProtoFuncStringify(JSC::ExecState*) JavaScriptCore 0x18e5f34c8 llint_entry JavaScriptCore 0x18e5f2a94 llint_entry JavaScriptCore 0x18e5f2a94 llint_entry JavaScriptCore 0x18e5f2a94 llint_entry JavaScriptCore 0x18e5f2a30 llint_entry JavaScriptCore 0x18e5f2ee0 llint_entry JavaScriptCore 0x18e5f2a30 llint_entry JavaScriptCore 0x18e5f2a94 llint_entry JavaScriptCore 0x18e5f2a30 llint_entry JavaScriptCore 0x18e5ebf50 llintPCRangeStart JavaScriptCore 0x18e4d1b94 JSC::JITCode::execute(JSC::VM*, JSC::ProtoCallFrame*) JavaScriptCore 0x18def71b8 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) JavaScriptCore 0x18e506c3c JSC::boundThisNoArgsFunctionCall(JSC::ExecState*) JavaScriptCore 0x18e5ec098 vmEntryToNative JavaScriptCore 0x18def7200 JSC::Interpreter::executeCall(JSC::ExecState*, JSC::JSObject*, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) JavaScriptCore 0x18e14a1fc JSC::profiledCall(JSC::ExecState*, JSC::ProfilingReason, JSC::JSValue, JSC::CallType, JSC::CallData const&, JSC::JSValue, JSC::ArgList const&) JavaScriptCore 0x18def6f68 JSObjectCallAsFunction rizzle 0x1013eca4c facebook::react::Object::callAsFunction(OpaqueJSValue*, int, OpaqueJSValue const* const*) const rizzle 0x10140c76c facebook::react::JSCExecutor::callFunction(std::__1::basic_string, std::__1::allocator > const&, std::__1::basic_string, std::__1::allocator > const&, folly::dynamic const&) at setJSResponder(node_modules/react-native-sentry/lib/NativeClient.js:155:29) at onChange(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:3241:23) at setResponderAndExtractTransfer(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:3354:140) at extractEvents(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:3463:85) at extractEvents(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:2971:54) at fn(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:3201:47) at batchedUpdates(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:2448:20) at batchedUpdates(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:198:16) at _receiveRootNodeIDEvent(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:3221:32) at apply(node_modules/react-native/Libraries/Renderer/ReactNativeFiber-prod.js:3234:37) at fn(node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:299:42) at __guard(node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:262:7) at value(node_modules/react-native/Libraries/BatchedBridge/MessageQueue.js:110:10) rizzle 0x10140bb00 std::__1::function::operator()(OpaqueJSContext*) const rizzle 0x10139a110 facebook::react::tryAndReturnError(std::__1::function const&) rizzle 0x1013923a8 facebook::react::RCTMessageThread::tryFunc(std::__1::function const&) CoreFoundation 0x18756016c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ CoreFoundation 0x18755fa3c __CFRunLoopDoBlocks CoreFoundation 0x18755dca4 __CFRunLoopRun CoreFoundation 0x18747e2d8 CFRunLoopRunSpecific rizzle 0x101374c48 +[RCTCxxBridge runRunLoop] Foundation 0x187fa7860 __NSThread__start__ libsystem_pthread 0x1871e432c _pthread_body libsystem_pthread 0x1871e41f8 _pthread_start
我已经尝试了3个多月,并且一直在尝试替代库,但是我真的很想能够使用redux-persist。
我在redux-persist中遇到了完全相同的错误和堆栈跟踪,这似乎是由于我的一个reducer中的数据大小太大而无法在存储引擎的某些方面处理时引起的。
就我而言,试图保留的json大小为520000000个字符!
最后,我发现的最佳解决方案是将持久化的reducer拆分为较小的reducer,然后将其合并到我的应用程序中,以便可以从我的应用程序代码中将其作为一个处理。
我还尝试了不同的存储引擎,以找到能最好地处理该数据量的存储引擎,最后建立在redux-persist-realm
,尽管我们确实对其进行了修补以解决一些错误。
为了拆分化简器,我使用了每个uuid项的第一个字符,这样我就可以得到16个合理的大小相等的子集。
首先,我为uuid的每个可能的第一个字符创建了一个reducer
const store = createStore(
{
... other reducers
recordsDataA: createReducer('A'),
recordsDataB: createReducer('B'),
recordsDataC: createReducer('C'),
recordsDataD: createReducer('D'),
recordsDataE: createReducer('E'),
...
},
applyMiddleware(...middlewares),
enhancer
)
export const createReducer = key => combineReducers({
records: recordsReducer(key),
})
const recordsReducer = batch => (state = [], action) => {
switch (action.type) {
case REQUEST_RECORDS_SUCCESS:
return action.records.filter(record => record.id[0].toUpperCase() === batch)
... other actions
default:
return state
}
}
然后,在选择器中,使用reselect ,将单个化简器组合回单个数组中,以便可以轻松地从其他选择器中使用它。 即-
export const makeGetAllRecords = () =>
createSelector(
[
state => state.recordsDataA.records,
state => state.recordsDataB.records,
state => state.recordsDataC.records,
state => state.recordsDataD.records,
state => state.recordsDataE.records,
state => state.recordsDataF.records,
...
],
(...allBatches) => [].concat(...allBatches)
)
export const getRecordById = (state: Array<Record>, recordId: string) =>
makeGetAllRecords()(state).find(record => record.id === recordId) || null
我相信可以做很多工作来整理和优化该代码,但是它可以在生产环境中正常工作。
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