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em 2021-03-04T06:25:50.079300Z

+1 on this, I would be curious about solutions/answers here too


Yes, of course. But Im looking for a way to expose any transaction related information (in my case to expose some definition of created at). As it stands now there doesn't seem a way to expose transaction data


A possibility for us would be to expose multiple presto endpoints on different d/as-of . That'd also ensure a consistent view of the data.

favila 2021-03-04T14:31:39.084200Z

Have you considered adding a “creating-tx” and “last-modifying-tx” attribute to your entities that references a transaction? That would be both faster (no history index needed to determine it) and exposable via pendo

favila 2021-03-04T14:32:27.084400Z

and would still tie these times precisely to transactions and their txinstant

Joe Lane 2021-03-04T14:32:33.084600Z

That's clever @favila

Joe Lane 2021-03-04T14:34:02.084800Z

Those attributes could be applied generally too, no need to make :user/creating-tx .


Thatd allow for indexing too. Sounds promising. I'll suggest it to the team. Just need to make sure to include that attribute in related transactions (but that could be generic too I recon)... Thanks!

esp1 2021-03-04T19:29:48.091700Z

I'm having trouble installing the ion-dev tools as per https://docs.datomic.com/cloud/operation/howto.html#ion-dev. It looks like it's not able to retrieve the ion maven artifacts. When I run clj in the root of the ion-starter project, I get:

➜  ion-starter git:(master) ✗ clj
Downloading: com/datomic/ion/0.9.50/ion-0.9.50.pom from datomic-cloud
Downloading: com/datomic/ion/0.9.50/ion-0.9.50.jar from datomic-cloud
Error building classpath. Could not find artifact com.datomic:ion:jar:0.9.50 in central (<https://repo1.maven.org/maven2/>)
My $HOME/.clojure/deps.edn looks like:
  :aliases {
    :ion-dev {:deps {com.datomic/ion-dev {:mvn/version "0.9.282"}}
              :main-opts ["-m" "datomic.ion.dev"]}
  :mvn/repos {
    "datomic-cloud" {:url "<s3://datomic-releases-1fc2183a/maven/releases>"}
What am I doing wrong?

alexmiller 2021-03-04T19:34:35.092400Z

It’s not able to download from the Datomic s3 repo

alexmiller 2021-03-04T19:35:48.093200Z

You need aws creds active that have s3 permissions


https://clojure.org/reference/deps_and_cli#_maven_s3_repos This will provide further information for how to properly source credentials depending on which/where.

esp1 2021-03-04T20:15:03.098400Z

Hm, I'm pretty sure I did this already. I added the Datomic Administrator Policy (`datomic-admin-taxman-us-east-2`) policy to the role I'm logged in with and can successfully run datomic client access taxman , but I can't access the maven artifacts with those same creds. Upon closer inspection it looks like the Datomic Administrator Policy doesn't actually provide access to the <s3://datomic-releases-1fc2183a/maven/releases> bucket. Is there another policy somewhere I need to add in order to enable this access?

mikejcusack 2021-03-04T20:24:21.098700Z

Can you try clj -M:ion-dev from your actual project?

esp1 2021-03-04T20:25:32.098900Z

@mike.j.cusack that gives me the same error..

esp1 2021-03-04T20:26:01.099100Z

My understanding from the instructions was that the only role I needed to add was the Datomic Administrator Policy, but when I look in that policy it doesn't provide access to the <s3://datomic-releases-1fc2183a/maven/releases> bucket. Should it?

mikejcusack 2021-03-04T20:26:22.099300Z

The bucket isn't yours

esp1 2021-03-04T20:27:37.099500Z

That's true. I'm wondering how I'm supposed to get permission to read from it?

mikejcusack 2021-03-04T20:31:15.099700Z

Is that your full deps.edn or just a snippet?

mikejcusack 2021-03-04T20:31:50.099900Z

And you can aws s3 ls ?

esp1 2021-03-04T20:32:48.100100Z

that's the full deps.edn, with comments elided. i can run aws s3 ls and it shows me my own buckets.

mikejcusack 2021-03-04T20:34:39.100300Z

Try clj -M:ion-dev in a new repl. The error above isn't even for ion-dev, but ion.

esp1 2021-03-04T20:35:32.100500Z

I tried it in a blank directory w/no deps.edn and I get the same error

mikejcusack 2021-03-04T20:36:30.100700Z

Running the command I provided?

esp1 2021-03-04T20:36:38.100900Z

well, not exactly the same. i get this:

WARNING: Use of :deps in aliases is deprecated - use :replace-deps instead
Downloading: com/datomic/ion-dev/0.9.282/ion-dev-0.9.282.pom from datomic-cloud
Downloading: com/datomic/ion-dev/0.9.282/ion-dev-0.9.282.jar from datomic-cloud
Error building classpath. Could not find artifact com.datomic:ion-dev:jar:0.9.282 in central (<https://repo1.maven.org/maven2/>)

esp1 2021-03-04T20:36:51.101100Z

yes, clj -M:ion-dev

mikejcusack 2021-03-04T20:36:54.101300Z

So that's not the same error, but similar

mikejcusack 2021-03-04T20:37:15.101500Z

Which version of cli tools are you running?

esp1 2021-03-04T20:37:36.101700Z

➜  tmp git:(master) clj --version
Clojure CLI version

mikejcusack 2021-03-04T20:37:50.101900Z

@alexmiller Does this make any sense to you?

mikejcusack 2021-03-04T20:38:40.102100Z

Can you provide the full home deps.edn?

esp1 2021-03-04T20:39:52.102300Z

;; The deps.edn file describes the information needed to build a classpath.
;; When using the `clojure` or `clj` script, there are several deps.edn files
;; that are combined:
;; - install-level
;; - user level (this file)
;; - project level (current directory when invoked)
;; For all attributes other than :paths, these config files are merged left to right.
;; Only the last :paths is kept and others are dropped.

  ;; Paths
  ;;   Directories in the current project to include in the classpath

  ;; :paths ["src"]

  ;; External dependencies
  ;; :deps {
  ;;   org.clojure/clojure {:mvn/version "1.9.0"}
  ;; }

  ;; Aliases
	;;   resolve-deps aliases (-R) affect dependency resolution, options:
	;;     :extra-deps - specifies extra deps to add to :deps
	;;     :override-deps - specifies a coordinate to use instead of that in :deps
	;;     :default-deps - specifies a coordinate to use for a lib if one isn't found
	;;   make-classpath aliases (-C) affect the classpath generation, options:
	;;     :extra-paths - vector of additional paths to add to the classpath
	;;     :classpath-overrides - map of lib to path that overrides the result of resolving deps

  ;; :aliases {
  ;;   :deps {:extra-deps {org.clojure/tools.deps.alpha {:mvn/version "0.5.442"}}}
  ;;   :test {:extra-paths ["test"]}
  ;; }

  :aliases {
    :ion-dev {:deps {com.datomic/ion-dev {:mvn/version "0.9.282"}}
              :main-opts ["-m" "datomic.ion.dev"]} 
;;    :new {:extra-deps {seancorfield/clj-new {:mvn/version "1.1.228"}}
;;          :main-opts ["-m" "clj-new.create"]}
;;    :rebl {:extra-deps {com.cognitect/rebl          {:mvn/version "0.9.242"}
;;                        org.openjfx/javafx-fxml     {:mvn/version "15-ea+6"}
;;                        org.openjfx/javafx-controls {:mvn/version "15-ea+6"}
;;                        org.openjfx/javafx-swing    {:mvn/version "15-ea+6"}
;;                        org.openjfx/javafx-base     {:mvn/version "15-ea+6"}
;;                        org.openjfx/javafx-web      {:mvn/version "15-ea+6"}}
;;           :main-opts  ["-m" "cognitect.rebl"]}
;;    :reveal {:extra-deps {vlaaad/reveal {:mvn/version "1.1.163"}}
;;             :ns-default vlaaad.reveal
;;             :main-opts ["-m" "vlaaad.reveal" "repl"]
;;             :exec-fn repl}

  ;; Provider attributes

  :mvn/repos {
  ;;   "central" {:url "<https://repo1.maven.org/maven2/>"}
  ;;   "clojars" {:url "<https://repo.clojars.org/>"}
;;    "cognitect-dev-tools" {:url "<https://dev-tools.cognitect.com/maven/releases/>"}
    "datomic-cloud" {:url "<s3://datomic-releases-1fc2183a/maven/releases>"}

mikejcusack 2021-03-04T20:42:33.102500Z

Try renaming that file and try

{:aliases {:ion-dev {:extra-deps {com.datomic/ion-dev {:mvn/version "0.9.282"}}
                     :main-opts ["-m" "datomic.ion.dev"]}}
 :mvn/repos {"datomic-cloud" {:url "<s3://datomic-releases-1fc2183a/maven/releases>"}}}

esp1 2021-03-04T20:45:45.102700Z

same error 😓

mikejcusack 2021-03-04T20:45:57.102900Z

Did you copy/paste that directly?

esp1 2021-03-04T20:46:02.103100Z


mikejcusack 2021-03-04T20:46:25.103400Z

Hmm, this isn't making sense at all to me

esp1 2021-03-04T20:47:42.103600Z

me either.. i really appreciate your taking the time to help tho!

mikejcusack 2021-03-04T20:48:35.103900Z

Do you have any custom settings in .m2/?

esp1 2021-03-04T20:48:41.104100Z

is that s3 url supposed to be public? i.e. if i have any s3 access should i be able to do aws s3 ls <s3://datomic-releases-1fc2183a/maven/releases>

mikejcusack 2021-03-04T20:49:10.104300Z

It should be. That's why the instructions are just to add the dep and repo

esp1 2021-03-04T20:49:22.104500Z

oh dang yes i do!

mikejcusack 2021-03-04T20:50:08.104700Z

That command doesn't work for me

esp1 2021-03-04T20:50:32.104900Z

that was it! i had an old datomic-cloud key in my ~/.m2/settings.xml - i removed it and now it works!

mikejcusack 2021-03-04T20:50:39.105100Z

There we go

esp1 2021-03-04T20:51:02.105300Z

thanks a ton @mike.j.cusack - i was going crazy 😅

mikejcusack 2021-03-04T20:51:08.105500Z

The one for dev-tools is still needed if you use it


I'm seeings this warning with exception when calling (d/shutdown true) at the end of a java process's life. It appears to be benign, but I'm curious if there's anything I can fix to prevent it:



We're on com.datomic/datomic-pro "0.9.6024" at the moment.


Oof -- pretty obvious. I needed to handle shutting down my clojure resources separately. So s/shutdown false no longer results in the warning.