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reduce erros rate during service deploy -
Helix - [mail # user]
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| ...That totally makes sense. Thank you!On Wed, Apr 18, 2018 at 6:49 PM, kishore g wrote:> sorry for not being clear in the previous email. The solution I described> is completely ou... |
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Author: Bo Liu
, 2018-04-19, 02:29
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reduce erros rate during service deploy - Helix - [mail # user]
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| ...We listen to external view changes and compose a config file of shardmapping in our internal format that is used by our clients.Will shutdownInProgress=true in InstanceConfig get reflected i... |
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Author: Bo Liu ,
2018-04-19, 01:25
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reduce erros rate during service deploy - Helix - [mail # user]
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| ...Hi folks,We are running a service managed by Helix. When we rolling restart theservice, we first disable instances through Helix before restarting theservice processes in the hope that the r... |
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Author: Bo Liu ,
2018-04-18, 17:44
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protect a cluster during broad range outage -
Helix - [mail # user]
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| ...Great, thanks a lot!will try it out tomorrow.On Mon, Mar 19, 2018 at 7:30 PM, Lei Xia wrote:> Here is the commit that adds maintenance mode support if you are> interested in the ... |
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Author: Bo Liu
, 2018-03-20, 03:17
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protect a cluster during broad range outage - Helix - [mail # user]
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| ...Hi Lei,I only saw the code that set the maintenance flag. However, I don't see anycode that reads this flag. Would you point me to the code that implementsthe maintenance mode logic?Thanks,B... |
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Author: Bo Liu ,
2018-03-20, 02:09
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protect a cluster during broad range outage - Helix - [mail # user]
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| ...Hi Lei,Thank you so much for the detailed information.We were almost about to implement our own logic to generate ideal state tohandle this disaster case (That's why we were looking at the c... |
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Author: Bo Liu ,
2018-03-20, 01:33
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protect a cluster during broad range outage - Helix - [mail # user]
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| ...Just noticed that we have a cluster config "MAX_OFFLINE_INSTANCES_ALLOWED",which is used inhttps://github.com/apache/helix/blob/master/helix-core/src/main/java/org/apache/helix/controller/st... |
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Author: Bo Liu ,
2018-03-19, 23:07
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protect a cluster during broad range outage - Helix - [mail # user]
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| ...I agree semi-auto is a safer mode for stateful service. But we will have tocompute ideal state by ourselves (either manually triggered or triggered bylive instance change events). That means... |
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Author: Bo Liu ,
2018-03-07, 06:51
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protect a cluster during broad range outage - Helix - [mail # user]
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| ...Hi,We are using delayed rebalancer to manage a Master-Slave cluster.In the event when a large portion of a cluster disconnect from ZK (networkpartition, or service crash due to a bug), helix... |
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Author: Bo Liu ,
2018-03-07, 00:30
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Is there a way to reset an OnlineOffline resource? -
Helix - [mail # user]
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| ...It turned out to be something related to the configuration attached.It starts to go Offline if I remove this configuration before disabling it.On Fri, Feb 16, 2018 at 10:04 AM, Bo Liu ... |
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Author: Bo Liu
, 2018-02-16, 18:14
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Is there a way to reset an OnlineOffline resource? - Helix - [mail # user]
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| ...Yup, "HELIX_ENABLE" : "false" is in the idealstate for the disabledresource. I randomly checked the zk message path for two hosts, and the zknodes didn't exist. When there is no messages, do... |
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Author: Bo Liu ,
2018-02-16, 18:04
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Is there a way to reset an OnlineOffline resource? - Helix - [mail # user]
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| ...We tried to disable it through helix ui and restful api.Yes, I think it's not caused by the delay feature. Because the disabledresource stayed at online state forever.On Feb 16, 2018 08:48, ... |
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Author: Bo Liu ,
2018-02-16, 17:04
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Is there a way to reset an OnlineOffline resource? - Helix - [mail # user]
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| ...We'd like to change all partitions of a resource to Offline state and thenlet Helix to gradually move them to Online state. This will help us easilyrefresh the dataset hosted on the resource... |
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Author: Bo Liu ,
2018-02-16, 15:54
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Throttle at partition level? -
Helix - [mail # user]
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| ...Hi Lei,Yes, we'd like at most one transition for a partition.Besides this, we also need instance and cluster level throttling. Can youtake a look at the configuration I posted above. It didn... |
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Author: Bo Liu
, 2018-02-16, 16:59
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Throttle at partition level? - Helix - [mail # user]
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| ...Your input on how to configure Helix for Throttling is appreciated.On Thu, Feb 15, 2018 at 5:09 PM, Bo Liu wrote:> A related question. Is this the proper way to enable instance and ... |
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Author: Bo Liu ,
2018-02-16, 15:55
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Throttle at partition level? - Helix - [mail # user]
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| ...It can help us simplify Master-Slave state transition.When we bring up a new Slave, we need to set it to replicate from theMaster. If there is a concurrent Master->Slave transition, the t... |
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Author: Bo Liu ,
2018-02-16, 01:33
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Throttle at partition level? - Helix - [mail # user]
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| ...A related question. Is this the proper way to enable instance and clusterlevel throttling?Basically we want to allow up to 100 concurrent state transitions atcluster level and 2 at instance ... |
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Author: Bo Liu ,
2018-02-16, 01:09
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Throttle at partition level? - Helix - [mail # user]
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| ...Hi,Does Helix support throttling state transition at partition level?I only find cluster, resource and instance level throttling as below:public enum ThrottleScope { CLUSTER, RES... |
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Author: Bo Liu ,
2018-02-15, 23:19
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what's the proper way to extract DOMAIN information for each instance from external view? -
Helix - [mail # user]
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| ...Thanks Kishore!On Tue, Feb 13, 2018 at 4:14 PM, kishore g wrote:> InstanceConfig is typically cached on spectator and updated every time it> changes. You might have to add some a... |
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Author: Bo Liu
, 2018-02-14, 05:34
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Topology doesn't work as expected -
Helix - [mail # user]
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| ...Hi Lei,It worked!Thanks,BoOn Tue, Feb 13, 2018 at 8:10 PM, Lei Xia wrote:> Hi, Bo>> Please add "TOPOLOGY_AWARE_ENABLED" : "true" to your clusterConfig and> try... |
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Author: Bo Liu
, 2018-02-14, 05:34
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Topology doesn't work as expected - Helix - [mail # user]
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| ...Hi Helix Team,I am doing some test for the Helix topologyThe cluster configuration is:DELAY_REBALANCE_DISABLE : "false"DELAY_REBALANCE_ENABLE : "true"DELAY_REBALANCE_TIME : "100000"FAULT_ZON... |
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Author: Bo Liu ,
2018-02-13, 22:48
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build failure for helix-front -
Helix - [mail # user]
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| ...Thank you all. It worked!On Wed, Jan 31, 2018 at 3:07 PM, ViVo wrote:> Thanks, Lei!>> Hi Bo,>> Sorry about any inconvenience. By default, the UI is in Read-Only mode. To... |
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Author: Bo Liu
, 2018-02-01, 01:18
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build failure for helix-front - Helix - [mail # user]
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| ...Thanks Lei!Hi Vivo,To provide more context, I am now able to access the UI as attached.However, I couldn't find a place to create clusters, resources, etc. Iguess some additional setup is ne... |
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Author: Bo Liu ,
2018-01-31, 23:01
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build failure for helix-front - Helix - [mail # user]
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| ...Thank you all for the quick turn around.Another question.Do I need to configure/change anything in helix front so that I can use theadmin features like adding a cluster etc.On Jan 31, 2018 0... |
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Author: Bo Liu ,
2018-01-31, 16:56
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build failure for helix-front - Helix - [mail # user]
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| ...looks like we just need to change the parent version from 0.6.10-SNAPSHOTto 0.8.0.On Tue, Jan 30, 2018 at 8:50 PM, Bo Liu wrote:> Hi There,>> I am trying to build helix-front ... |
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Author: Bo Liu ,
2018-01-31, 05:01
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build failure for helix-front - Helix - [mail # user]
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| ...Hi There,I am trying to build helix-front UI by following the instructions onhttps://helix.apache.org/0.8.0-docs/tutorial_ui.htmlHowever, I got the following error when running the "../build... |
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Author: Bo Liu ,
2018-01-31, 04:50
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[VOTE] Apache Helix 0.8.0 Release -
Helix - [mail # dev]
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| ...+1 can't wait to try V2 restful API and UI.On Mon, Jan 29, 2018 at 5:53 PM, Lei Xia wrote:> +1>> On Mon, Jan 29, 2018 at 5:13 PM, Xue Junkai wrote:>> > Hi,> ... |
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Author: Bo Liu
, 2018-01-30, 02:13
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differentiate between bootstrap and a soft failure -
Helix - [mail # user]
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| ...After applying those changes, I am still observing the same behavior.On Fri, Jan 26, 2018 at 11:50 AM, Bo Liu wrote:> Thanks Lei, will try it out.> Yes, a tutorial page for this ... |
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Author: Bo Liu
, 2018-01-26, 21:22
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differentiate between bootstrap and a soft failure - Helix - [mail # user]
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| ...Thanks Lei, will try it out.Yes, a tutorial page for this new feature would be very helpful.On Jan 26, 2018 09:49, "Lei Xia" wrote:> Hi, Bo>> That is not the expe... |
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Author: Bo Liu ,
2018-01-26, 19:50
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differentiate between bootstrap and a soft failure - Helix - [mail # user]
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| ...I tried to run with DelayedAutoRebalancer. When a participant host(localhost_12913) was killed, shards hosted on it were not moved, which isexpected.And the external view for the resource is... |
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Author: Bo Liu ,
2018-01-26, 02:17
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differentiate between bootstrap and a soft failure - Helix - [mail # user]
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| ...Great, thank you for the prompt reply.Thanks,BoOn Tue, Jan 23, 2018 at 1:47 PM, kishore g wrote:>> 1. Yes, you can set the max transitions constraint on per partitio... |
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Author: Bo Liu ,
2018-01-23, 22:38
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differentiate between bootstrap and a soft failure - Helix - [mail # user]
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| ...Thanks Kishore & Lei!It's a good point to rely on the data in a local partition to decide if abootstrap is needed or catching up is good enough.'A few more questions.1. is there a way to all... |
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Author: Bo Liu ,
2018-01-23, 19:58
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differentiate between bootstrap and a soft failure - Helix - [mail # user]
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| ...Hi There,I am using FULL_AUTO with MasterSlave and DelayedAutoRebalancer. How can aparticipant differentiate between these two cases:1) when a participant first joins a cluster, it will be r... |
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Author: Bo Liu ,
2018-01-23, 07:12
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[jira] [Created] (HELIX-671) Introduce github.com/uber-go/go-helix as a Golang participant client library -
Helix - [mail # dev]
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| ...Thanks for the contribution!Do we have a formal protocol/API specification for Helix Participant? Thatwill make people building participant client library in other language moreconfident.On ... |
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Author: Bo Liu
, 2018-01-05, 21:56
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