Remove hostnameMaxLen for Mongo URL #6693
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In our Mongo cluster, we have 2 shards equalling 7 hosts that come in as a long comma-delimited list of host names. This hostNameMaxLen of 255 should not apply to a mongo connection string like that: mongodb://<USER>:<PASSWORD>@MYCLUSTER-shard-00-00.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-00-01.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-00-02.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-00-03.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-02-00.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-02-01.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-02-02.luszb.azure.mongodb.net:27016/dev?ssl=true&authSource=admin We was using the SRV mongo connection string type which is much shorter: mongodb+srv://<USER>:<PASSWORD>@MYCLUSTER-luszb.azure.mongodb.net/dev But we were finding it to be unreliable with Azure's DNS. We rarely change our cluster configuration, so having the long connection string would be more reliable If these changes should be approached in some other manner, I'd be happy to do that.
Codecov Report
@@ Coverage Diff @@
## master #6693 +/- ##
==========================================
- Coverage 93.91% 93.78% -0.13%
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Files 169 169
Lines 12028 12270 +242
==========================================
+ Hits 11296 11508 +212
- Misses 732 762 +30
Continue to review full report at Codecov.
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Would it be better to remove the hostnameMaxLen? Or should we move it to the Parse Server Configurations |
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Danger run resulted in 1 fail and 1 markdown; to find out more, see the checks page. Generated by 🚫 dangerJS |
dplewis
approved these changes
Oct 23, 2020
dplewis
changed the title
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@markhoward02 Thanks for the PR. I went ahead and removed this. You shouldn't have to worry about this issue anymore. |
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In our Mongo cluster, we have 2 shards equalling 7 hosts that come in as a long comma-delimited list of host names. This hostNameMaxLen of 255 should not apply to a mongo connection string like that:
mongodb://:@MYCLUSTER-shard-00-00.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-00-01.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-00-02.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-00-03.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-02-00.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-02-01.luszb.azure.mongodb.net:27016,MYCLUSTER-shard-02-02.luszb.azure.mongodb.net:27016/dev?ssl=true&authSource=admin
We was using the SRV mongo connection string type which is much shorter:
mongodb+srv://:@MYCLUSTER-luszb.azure.mongodb.net/dev
But we were finding it to be unreliable with Azure's DNS. We rarely change our cluster configuration, so having the long connection string would be more reliable
If these changes should be approached in some other manner, I'd be happy to do that.