neo4j-javascript-driver: Cannot read property 'filter' of undefined

Using version 1.5.0 Node 8.1.4 Neo4j 3.1.1 (singel instance) & 3.2.3 (Casual cluster) Linux / Debian

A couple of time per day we get this error, since it happens outside the normal process chain we’re unable to catch it and the stack trace doesn’t point to anything obvious.

TypeError: Cannot read property 'filter' of undefined
    at node_modules/neo4j-driver/lib/v1/internal/pool.js:115:44
    at Timeout._onTimeout (node_modules/neo4j-driver/lib/v1/internal/util.js:150:9)
    at ontimeout (timers.js:488:11)
    at tryOnTimeout (timers.js:323:5)
    at Timer.listOnTimeout (timers.js:283:5)
    at listOnTimeoutNT (timers.js:359:26)
    at _combinedTickCallback (internal/process/next_tick.js:99:11)
    at process._tickDomainCallback (internal/process/next_tick.js:198:9)

About this issue

Original URL
State: closed
Created 7 years ago
Reactions: 3
Comments: 16 (8 by maintainers)

Most upvoted comments

@FredrikL, @Thiago-Caramelo this issue should be fixed by the mentioned PR. I think that error in the database logs in not related because it does not originate from Bolt server component.

lutovich on Dec 18, 2017

Hi @FredrikL,

Thanks for reporting this problem. We will investigate.

lutovich on Nov 6, 2017

@lutovich We’re still seeing the same problem

TypeError: Cannot read property 'filter' of undefined
   at /node_modules/neo4j-driver/lib/v1/internal/pool.js:115:44
   at Timeout._onTimeout (/node_modules/neo4j-driver/lib/v1/internal/util.js:152:9)
   at ontimeout (timers.js:488:11)
   at tryOnTimeout (timers.js:323:5)
   at Timer.listOnTimeout (timers.js:283:5)

FredrikL on Jan 9, 2018

Version 1.5.2 with the mentioned fix is now released and available on NPM. Please report if it does not solve the problem. Thanks!

lutovich on Jan 4, 2018

We also get this error a few times per day.

At client side:

TypeError: Cannot read property ‘filter’ of undefined at /user_code/node_modules/neo4j-driver/lib/v1/internal/pool.js:115:44 at Timeout._onTimeout (/user_code/node_modules/neo4j-driver/lib/v1/internal/util.js:150:9) at ontimeout (timers.js:386:11) at tryOnTimeout (timers.js:250:5) at Timer.listOnTimeout (timers.js:214:5)

At server side:

WARN Illegal character 0x3 in state=START for buffer HeapByteBuffer@5707b2f0[p=1,l=1,c=8192,r=0]={\x03<<<>>>ET / HTTP/1.1\r\nHo…\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00}

WARN badMessage: 400 Illegal character 0x3 for HttpChannelOverHttp@18fd5c5b{r=0,c=false,a=IDLE,uri=}

I’m not sure if they are related.

Thiago-Caramelo on Dec 14, 2017