# TryAbort selectively proposing only aborted txns

**URL:** https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972
**Category:** Dgraph
**Tags:** kind:bug
**Created:** [August 29, 2019, 5:30am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972 "2019-08-29T05:30:47Z")
**Posts on this page:** 11
**Page:** 1

<div class="post-metadata">

### Author: ![CalicoBox](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/calicobox/32/1364_2.png) [@CalicoBox](https://discuss.dgraph.io/u/CalicoBox)
#### Post date: [August 29, 2019, 5:30am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/1 "2019-08-29T05:30:47Z")

</div>

I have **a cluster of two groups, each of which has three nodes.**  
When I was performing read and write operations at the same time, a problem that could not be inquired suddenly occurred. I went to check the log and found that the leader of group 1 kept prompting to terminate the transaction. At the same time another group(group 2) can provide services. When you query predicates that are in the group 2, the result is returned correctly.

_ **What’s wrong with that？ I need help badly！** _

**dgraph version：1.0.14**

The log on the leader of the group 1:

```auto
W0829 13:05:58.095411 123223 node.go:87] A tick missed to fire. Node blocks too long!
W0829 13:05:58.155451 123223 node.go:87] A tick missed to fire. Node blocks too long!
W0829 13:05:58.175423 123223 node.go:87] A tick missed to fire. Node blocks too long!
W0829 13:05:58.195483 123223 node.go:87] A tick missed to fire. Node blocks too long!
W0829 13:05:58.215440 123223 node.go:87] A tick missed to fire. Node blocks too long!
W0829 13:05:58.235441 123223 node.go:87] A tick missed to fire. Node blocks too long!
W0829 13:05:58.255440 123223 node.go:87] A tick missed to fire. Node blocks too long!
W0829 13:05:58.433941 123223 draft.go:764] Raft.Ready took too long to process: 170ms. Most likely due to slow disk: 0s. Num entries: 0. MustSync: false
I0829 13:08:09.455606 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:08:09.458027 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:08:09.458097 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:08:09.458322 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:08:39.455521 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:08:39.457891 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:08:39.457924 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:08:39.458003 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:09:09.455522 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:09:09.457686 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:09:09.457709 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:09:09.457769 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:09:40.394748 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:09:40.396934 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:09:40.396967 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:09:40.397013 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:10:09.455562 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:10:09.457359 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:10:09.457385 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:10:09.457438 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:10:39.455511 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:10:39.457836 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:10:39.457883 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:10:39.457973 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:11:09.455533 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:11:09.457877 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:11:09.457911 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:11:09.458000 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:11:39.455550 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:11:39.457524 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:11:39.457603 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:11:39.457700 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:12:10.437805 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:12:10.440039 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:12:10.440080 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:12:10.440199 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:12:39.455672 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:12:39.490693 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:12:39.490760 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:12:39.490866 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:13:09.455486 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:13:09.457546 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:13:09.457582 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:13:09.457638 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:13:39.455473 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:13:39.457659 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:13:39.457690 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:13:39.457747 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:14:09.455470 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:14:09.457800 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:14:09.457833 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:14:09.457899 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:14:40.430894 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:14:40.433232 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:14:40.433254 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:14:40.433313 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:15:09.455517 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:15:09.458029 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:15:09.458059 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:15:09.458128 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:15:39.455543 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:15:39.458194 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:15:39.458228 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:15:39.458328 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >

[hadoop@BXPL-BD-60-17 ~]$
[hadoop@BXPL-BD-60-17 ~]$ tail -f /usr/local/graphbase/dgraph/alph
a_1.log
I0829 13:15:39.458228 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:15:39.458328 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:16:09.455536 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:16:09.458064 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:16:09.458091 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:16:09.458181 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:16:39.455580 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:16:39.457926 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:16:39.457955 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:16:39.458023 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:17:10.331771 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:17:10.334214 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:17:10.334292 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:17:10.334398 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:17:39.455535 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:17:39.457780 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:17:39.457812 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:17:39.457883 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >
I0829 13:18:09.455508 123223 draft.go:931] Found 1 old transactions. Acting to abort them.
I0829 13:18:09.457562 123223 draft.go:891] TryAbort 1 txns with start ts. Error: <nil>
I0829 13:18:09.457598 123223 draft.go:898] TryAbort returned with
delta: txns:<start_ts:1080528 >
I0829 13:18:09.457697 123223 draft.go:915] TryAbort selectively proposing only aborted txns: txns:<start_ts:1080528 >

```

---

<div class="post-metadata">

### Author: ![mrjn](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/mrjn/32/775_2.png) [@mrjn](https://discuss.dgraph.io/u/mrjn)
#### Post date: [August 29, 2019, 11:04am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/2 "2019-08-29T11:04:28Z")

</div>

Can you please upgrade to v1.0.16? Or, check the release notes for v1.0.15 and v1.0.16? There were a bunch of fixes around this area.

---

<div class="post-metadata">

### Author: ![amanmangal](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/amanmangal/32/1249_2.png) [@amanmangal](https://discuss.dgraph.io/u/amanmangal)
#### Post date: [August 29, 2019, 11:19am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/3 "2019-08-29T11:19:24Z")

</div>

Also pushed another fix to `release/v1.0` branch. We should do a release tomorrow. You can compile from source and try this branch too.

---

<div class="post-metadata">

### Author: ![amanmangal](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/amanmangal/32/1249_2.png) [@amanmangal](https://discuss.dgraph.io/u/amanmangal)
#### Post date: [August 29, 2019, 11:33am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/4 "2019-08-29T11:33:17Z")

</div>

Happy to provide you binaries, email me on `aman[AT]dgraph.io`.

---

<div class="post-metadata">

### Author: ![CalicoBox](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/calicobox/32/1364_2.png) [@CalicoBox](https://discuss.dgraph.io/u/CalicoBox)
#### Post date: [August 30, 2019, 4:01am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/5 "2019-08-30T04:01:07Z")

</div>

Yes, I have tried to upgrade the version of Dgraph to 1.0.16, and then starts the service with a new version based on the original data, but the current situation is that the group with the problem cannot even elect a leader. ![image](https://canada1.discourse-cdn.com/flex007/uploads/dgraph/original/2X/3/37aa47fd4af7e72ddf48c75899d1210ee867fa18.png)

 ![image%20(1)](https://canada1.discourse-cdn.com/flex007/uploads/dgraph/original/2X/1/1cac24afd98ba42b12c09804d6d0638bbf00cc2d.jpeg)

---

<div class="post-metadata">

### Author: ![dmai](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/dmai/32/1254_2.png) [@dmai](https://discuss.dgraph.io/u/dmai)
#### Post date: [August 30, 2019, 8:47pm UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/6 "2019-08-30T20:47:57Z")

</div>

@CalicoBox please try the v1.0.17 release binaries, which addresses this issue by reducing the rate of sent proposals in the system.

---

<div class="post-metadata">

### Author: ![CalicoBox](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/calicobox/32/1364_2.png) [@CalicoBox](https://discuss.dgraph.io/u/CalicoBox)
#### Post date: [September 4, 2019, 9:47am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/7 "2019-09-04T09:47:27Z")

</div>

I upgraded dgraph to 1.0.17, but the situation is no different from that of 1.0.16. Group1 still failed to elect a leader

---

<div class="post-metadata">

### Author: ![Valdanito](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/valdanito/32/1381_2.png) [@Valdanito](https://discuss.dgraph.io/u/Valdanito)
#### Post date: [September 14, 2020, 3:04am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/8 "2020-09-14T03:04:39Z")

</div>

same error in 20.07

---

<div class="post-metadata">

### Author: ![n3integration](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/n3integration/32/4876_2.png) [@n3integration](https://discuss.dgraph.io/u/n3integration)
#### Post date: [September 22, 2020, 3:11pm UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/9 "2020-09-22T15:11:52Z")

</div>

Seeing the same behavior in 2.0.0-rc1 as well as 20.07 when performing bulk upsert operations.

---

<div class="post-metadata">

### Author: ![dmai](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/dmai/32/1254_2.png) [@dmai](https://discuss.dgraph.io/u/dmai)
#### Post date: [September 22, 2020, 6:58pm UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/10 "2020-09-22T18:58:36Z")

</div>

@Valdanito @n3integration Are you seeing this error repeatedly where Dgraph seems simply stuck doing these? Or, does this show up only once in a while?

Open transactions that haven’t had any activity for 5 minutes trigger these “Found _N_ old transactions. Acting to abort them.” logs where Dgraph will abort these txns in the background. So, these logs are expected to happen if you have txns that were opened but not committed.

---

<div class="post-metadata">

### Author: ![Valdanito](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/valdanito/32/1381_2.png) [@Valdanito](https://discuss.dgraph.io/u/Valdanito)
#### Post date: [September 23, 2020, 2:08am UTC](https://discuss.dgraph.io/t/tryabort-selectively-proposing-only-aborted-txns/4972/11 "2020-09-23T02:08:16Z")

</div>

In my case this only appears occasionally.