# Kibana not starting. Stuck at "Optimizing and caching bundles...." after upgrade

**URL:** <https://discuss.elastic.co/t/kibana-not-starting-stuck-at-optimizing-and-caching-bundles-after-upgrade/157870>\
**Category:** Kibana\
**Created:** [November 22, 2018, 11:58am UTC](https://discuss.elastic.co/t/kibana-not-starting-stuck-at-optimizing-and-caching-bundles-after-upgrade/157870 "2018-11-22T11:58:48Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![pk.241011](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pk.241011/32/86285_2.png) [@pk.241011](https://discuss.elastic.co/u/pk.241011)\
**Post date:** [November 26, 2018, 12:38am UTC](https://discuss.elastic.co/t/kibana-not-starting-stuck-at-optimizing-and-caching-bundles-after-upgrade/157870/7 "2018-11-26T00:38:04Z")

</div>

Some more info on this  
I tried increasing the memory for node.js.  
`export NODE_OPTIONS="--max-old-space-size=5000"`

Still no luck. However using `top` command shows that `node` is using quite a bit of resources.

And then there was a crash.

```
[myserver ~]$ sudo /usr/share/kibana/bin/kibana --verbose -c /etc/kibana/kibana.yml

<--- Last few GCs --->

[30204:0x38bdb90] 890429 ms: Mark-sweep 1309.1 (1453.2) -> 1309.1 (1454.2) MB, 1509.8 / 0.0 ms allocation failure GC in old space requested
[30204:0x38bdb90] 891989 ms: Mark-sweep 1309.1 (1454.2) -> 1309.1 (1416.2) MB, 1560.4 / 0.0 ms last resort GC in old space requested
[30204:0x38bdb90] 893555 ms: Mark-sweep 1309.1 (1416.2) -> 1309.1 (1416.2) MB, 1566.2 / 0.0 ms last resort GC in old space requested

<--- JS stacktrace --->

==== JS stack trace =========================================

Security context: 0x28d66ae25879 <JSObject>
    0: builtin exit frame: lastIndexOf(this=0x16726838f3c1 <Very long string[4569717]>,0x1d5dd118ca51 <String[1]\: \n>)

    1: has_nlb(aka has_nlb) [0xcbd32e022d1 <undefined>:5970] [bytecode=0x1c7895855f29 offset=15](this=0xcbd32e022d1 <undefined>)
    2: /* anonymous */(aka /* anonymous */) [0xcbd32e022d1 <undefined>:6070] [bytecode=0x3235f1f5d819 offset=60](this=0xcbd32e022d1 <undefined>,c=0x...

FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
 1: node::Abort() [/usr/share/kibana/bin/../node/bin/node]
 2: 0x8c21ec [/usr/share/kibana/bin/../node/bin/node]
 3: v8::Utils::ReportOOMFailure(char const*, bool) [/usr/share/kibana/bin/../node/bin/node]
 4: v8::internal::V8::FatalProcessOutOfMemory(char const*, bool) [/usr/share/kibana/bin/../node/bin/node]
 5: v8::internal::Factory::NewRawTwoByteString(int, v8::internal::PretenureFlag) [/usr/share/kibana/bin/../node/bin/node]
 6: v8::internal::String::SlowFlatten(v8::internal::Handle<v8::internal::ConsString>, v8::internal::PretenureFlag) [/usr/share/kibana/bin/../node/bin/node]
 7: v8::internal::String::Flatten(v8::internal::Handle<v8::internal::String>, v8::internal::PretenureFlag) [/usr/share/kibana/bin/../node/bin/node]
 8: v8::internal::String::LastIndexOf(v8::internal::Isolate*, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>, v8::internal::Handle<v8::internal::Object>) [/usr/share/kibana/bin/../node/bin/node]
 9: v8::internal::Builtin_StringPrototypeLastIndexOf(int, v8::internal::Object**, v8::internal::Isolate*) [/usr/share/kibana/bin/../node/bin/node]
10: 0x527c5a0697d
Aborted

```

Weird as it may sound, looks like progress. Any pointers?

---

_[View the full topic](https://discuss.elastic.co/t/kibana-not-starting-stuck-at-optimizing-and-caching-bundles-after-upgrade/157870)._