# Using FoundationDB

**URL:** https://forums.foundationdb.org/c/using-foundationdb/7.md?page=2

[Latest](https://forums.foundationdb.org/latest.md) · [Categories](https://forums.foundationdb.org/categories.md) · [Tags](https://forums.foundationdb.org/tags.md)

**Page:** 3

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## [Weird TLSPolicyFailure errors with self signed certificates](https://forums.foundationdb.org/t/weird-tlspolicyfailure-errors-with-self-signed-certificates/5028)

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**Author:** [@mpatou\_openai](https://forums.foundationdb.org/u/mpatou_openai)\
**Replies:** 6\
**Last updated:** [September 16, 2025, 4:35pm UTC](https://forums.foundationdb.org/t/weird-tlspolicyfailure-errors-with-self-signed-certificates/5028 "2025-09-16T16:35:22Z")

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We use self signed CA for securing our FDB traffic in staging but not in production we have those weird error messages teTime 2025-08-15T23:04:39Z ID 0000000000000000 Machine 10.241.1.88:4502 Reason preverification fail…

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## [Clearing the metadata from a DR backup](https://forums.foundationdb.org/t/clearing-the-metadata-from-a-dr-backup/5075)

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**Author:** [@swr](https://forums.foundationdb.org/u/swr)\
**Replies:** 0\
**Last updated:** [September 16, 2025, 3:42pm UTC](https://forums.foundationdb.org/t/clearing-the-metadata-from-a-dr-backup/5075 "2025-09-16T15:42:18Z")

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Hi there! I accidentally created a DR backup in the “reverse” direction. I aborted it but forgot to include the --cleanup flag. Now, my status json on one of my clusters is continuing to show the aborted backup in .clust…

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## [OpenTelemetry distributed tracing: is it possible to propagate trace IDs from client to server?](https://forums.foundationdb.org/t/opentelemetry-distributed-tracing-is-it-possible-to-propagate-trace-ids-from-client-to-server/4463)

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**Author:** [@gm42](https://forums.foundationdb.org/u/gm42)\
**Replies:** 2\
**Last updated:** [September 15, 2025, 1:23pm UTC](https://forums.foundationdb.org/t/opentelemetry-distributed-tracing-is-it-possible-to-propagate-trace-ids-from-client-to-server/4463 "2025-09-15T13:23:10Z")

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I have been trying to figure out from documentation and practical tests how to pass an OpenTelemetry (parent) trace id from a client connected to FoundationDB, so that FoundationDB server would emit spans with the same t…

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## [Backup to GCS failing TLS preverification](https://forums.foundationdb.org/t/backup-to-gcs-failing-tls-preverification/4159)

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**Author:** [@larshagen](https://forums.foundationdb.org/u/larshagen)\
**Replies:** 9\
**Last updated:** [September 11, 2025, 5:11pm UTC](https://forums.foundationdb.org/t/backup-to-gcs-failing-tls-preverification/4159 "2025-09-11T17:11:55Z")

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We are trying to run backups directly to Google Cloud Storage (GCS) from our FDB cluster. We are running on 7.1.39, which should have all the necessary compatibility fixes, but it is still failing TLS verification, compl…

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## [What's new in FoundationDB 7.4?](https://forums.foundationdb.org/t/whats-new-in-foundationdb-7-4/5064)

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**Author:** [@jon](https://forums.foundationdb.org/u/jon)\
**Replies:** 3\
**Last updated:** [September 10, 2025, 6:12pm UTC](https://forums.foundationdb.org/t/whats-new-in-foundationdb-7-4/5064 "2025-09-10T18:12:47Z")

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Friends, I know there’s a robust conversation about information accessibility happening over in Improving (Perceived) Complexity , but as a more focused question: what’s new in FoundationDB 7.4? At the time of writing, m…

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## [FoundationDB on docker/mac m2](https://forums.foundationdb.org/t/foundationdb-on-docker-mac-m2/3876)

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**Author:** [@mping-exo](https://forums.foundationdb.org/u/mping-exo)\
**Replies:** 14\
**Last updated:** [September 8, 2025, 10:59am UTC](https://forums.foundationdb.org/t/foundationdb-on-docker-mac-m2/3876 "2025-09-08T10:59:06Z")

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Has anybody had any success running foundationdb/foundationdb image on docker? I run with --platform linux/amd64 while there are no apple silicon images available, but I hit the following: foundation-1 | \<jemalloc\>: MA…

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## [Dataloss when doing failover with a multi region cluster?](https://forums.foundationdb.org/t/dataloss-when-doing-failover-with-a-multi-region-cluster/4921)

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**Author:** [@mpatou\_openai](https://forums.foundationdb.org/u/mpatou_openai)\
**Replies:** 9\
**Last updated:** [September 5, 2025, 12:15pm UTC](https://forums.foundationdb.org/t/dataloss-when-doing-failover-with-a-multi-region-cluster/4921 "2025-09-05T12:15:12Z")

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Hello there, In the series of tests that I have been conducting one of them is related to failover with a multi region fdb. Here is the configuration: Configuration: Redundancy mode - double Storage engine …

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## [FoundationDBBackup cannot be reconciled properly](https://forums.foundationdb.org/t/foundationdbbackup-cannot-be-reconciled-properly/5023)

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**Author:** [@zmylk](https://forums.foundationdb.org/u/zmylk)\
**Replies:** 1\
**Last updated:** [September 1, 2025, 3:34pm UTC](https://forums.foundationdb.org/t/foundationdbbackup-cannot-be-reconciled-properly/5023 "2025-09-01T15:34:16Z")

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I suspect this is similar to the question But after I added the certificate, it did not solve the problem Certificate Creation Reference Possibly useful documents https://github.com/FoundationDB/fdb-kubernetes-oper…

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## [OTEL metrics from FDB](https://forums.foundationdb.org/t/otel-metrics-from-fdb/5057)

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**Author:** [@evkuzin](https://forums.foundationdb.org/u/evkuzin)\
**Replies:** 2\
**Last updated:** [August 29, 2025, 3:35am UTC](https://forums.foundationdb.org/t/otel-metrics-from-fdb/5057 "2025-08-29T03:35:28Z")

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Hi! I recently stumbled upon possibility to export metrics with OTEL. knob-metrics-data-model = otel knob-otel-udp-emission-addr = 127.0.0.1 knob-otel-udp-emission-port = 9000 knob-metrics-emission-interval = 30.0 …

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## [Clairification about version compatibility between client and server](https://forums.foundationdb.org/t/clairification-about-version-compatibility-between-client-and-server/4812)

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**Author:** [@hxu](https://forums.foundationdb.org/u/hxu)\
**Replies:** 3\
**Last updated:** [August 27, 2025, 2:10am UTC](https://forums.foundationdb.org/t/clairification-about-version-compatibility-between-client-and-server/4812 "2025-08-27T02:10:28Z")

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Hey folks, in the docs, there is this bit about API versioning: In general, a given client will support both its corresponding API version and earlier API versions . A client selects the API version it will use by expl…

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## [Recommended storage engine and migrating storage engine](https://forums.foundationdb.org/t/recommended-storage-engine-and-migrating-storage-engine/5024)

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**Author:** [@hxu](https://forums.foundationdb.org/u/hxu)\
**Replies:** 3\
**Last updated:** [August 25, 2025, 3:06am UTC](https://forums.foundationdb.org/t/recommended-storage-engine-and-migrating-storage-engine/5024 "2025-08-25T03:06:36Z")

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Hey all, reading the forums and the FoundationDB code, it seems that the new Redwood storage engine is set by choosing ssd-redwood-1-experimental as the storage engine, but the docs still suggest using ssd as the default…

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## [Coordinator performance](https://forums.foundationdb.org/t/coordinator-performance/5048)

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**Author:** [@evkuzin](https://forums.foundationdb.org/u/evkuzin)\
**Replies:** 1\
**Last updated:** [August 24, 2025, 1:18am UTC](https://forums.foundationdb.org/t/coordinator-performance/5048 "2025-08-24T01:18:47Z")

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Hi folks! I’m running fdb cluster on 30 servers, 96 cpu/workers each. I noticed that quite a lot of time coordinator worker is pegged at 100% cpu and after profiling I see the ClusterGetStatusActor is consuming the majo…

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## [BulkDump Failed](https://forums.foundationdb.org/t/bulkdump-failed/5016)

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**Author:** [@Northwo](https://forums.foundationdb.org/u/Northwo)\
**Replies:** 9\
**Last updated:** [August 20, 2025, 5:59pm UTC](https://forums.foundationdb.org/t/bulkdump-failed/5016 "2025-08-20T17:59:29Z")

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Hello every one，during the bulkdump process, I found that bulkdump got stuck. I noticed one process reported an error: “Last logged error: SystemError: internal\_error at Tue Aug 12 16:10:44 2025”. I checked the logs an…

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## [Questions about storage server on-disk format](https://forums.foundationdb.org/t/questions-about-storage-server-on-disk-format/4721)

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**Author:** [@swr](https://forums.foundationdb.org/u/swr)\
**Replies:** 8\
**Last updated:** [August 15, 2025, 2:05pm UTC](https://forums.foundationdb.org/t/questions-about-storage-server-on-disk-format/4721 "2025-08-15T14:05:34Z")

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I have a few questions about how storage server processes store data on-disk. We experienced a scenario where a development FDB cluster operating under a single machine single process configuration (ssd-2) became unavail…

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## [Dumping CommitDebug information when latency spike?](https://forums.foundationdb.org/t/dumping-commitdebug-information-when-latency-spike/5021)

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**Author:** [@mpatou\_openai](https://forums.foundationdb.org/u/mpatou_openai)\
**Replies:** 0\
**Last updated:** [August 14, 2025, 8:39pm UTC](https://forums.foundationdb.org/t/dumping-commitdebug-information-when-latency-spike/5021 "2025-08-14T20:39:17Z")

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We are facing situation when we have sudden spikes in the p99.9 latency of commits and we would like to investigate a bit more. I looked at CommitDebug information roughly doing the delta of the timestamp of message with…

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## [Extremely large logqueue file](https://forums.foundationdb.org/t/extremely-large-logqueue-file/1049)

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**Author:** [@colin](https://forums.foundationdb.org/u/colin)\
**Replies:** 5\
**Last updated:** [August 13, 2025, 3:51pm UTC](https://forums.foundationdb.org/t/extremely-large-logqueue-file/1049 "2025-08-13T15:51:57Z")

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I’ve been running FDB in production since October, and just noticed a logqueue file this past weekend that was that was 120GB. I’m currently running two servers on one disk, with only one being a coordinator. Status fd…

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## [Pods trying to connect to IPs not anymore assigned to FDB pods](https://forums.foundationdb.org/t/pods-trying-to-connect-to-ips-not-anymore-assigned-to-fdb-pods/4868)

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**Author:** [@mpatou\_openai](https://forums.foundationdb.org/u/mpatou_openai)\
**Replies:** 4\
**Last updated:** [August 11, 2025, 8:13pm UTC](https://forums.foundationdb.org/t/pods-trying-to-connect-to-ips-not-anymore-assigned-to-fdb-pods/4868 "2025-08-11T20:13:52Z")

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I’m starting to witness a weird behavior while investigating other issues: Lots of pods are trying to connect to other IPs that are not anymore assigned to current pods for FDB. For instance on the pod currently holdin…

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## [Foundationdb internal recovery - Troubleshooting](https://forums.foundationdb.org/t/foundationdb-internal-recovery-troubleshooting/5004)

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**Author:** [@gvddk](https://forums.foundationdb.org/u/gvddk)\
**Replies:** 0\
**Last updated:** [August 5, 2025, 1:48am UTC](https://forums.foundationdb.org/t/foundationdb-internal-recovery-troubleshooting/5004 "2025-08-05T01:48:40Z")

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We have been running a 45-node FoundationDB cluster for the past three years and encountered this issue for the first time. Suddenly, both read and write operations dropped significantly — read throughput fell from 140k …

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## [Stability of AES-encrypted backups](https://forums.foundationdb.org/t/stability-of-aes-encrypted-backups/4952)

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**Author:** [@Semisol](https://forums.foundationdb.org/u/Semisol)\
**Replies:** 1\
**Last updated:** [July 22, 2025, 9:23am UTC](https://forums.foundationdb.org/t/stability-of-aes-encrypted-backups/4952 "2025-07-22T09:23:48Z")

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Would anyome be able to share if they have been running encrypted backups in production with successful restores? I assume the Snowflake people can comment, as they are the original implementors of the feature.

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## [Is there is any basis for the rumor of change of Apple participation in the FoundationDB?](https://forums.foundationdb.org/t/is-there-is-any-basis-for-the-rumor-of-change-of-apple-participation-in-the-foundationdb/4958)

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**Author:** [@kdubinets](https://forums.foundationdb.org/u/kdubinets)\
**Replies:** 3\
**Last updated:** [July 22, 2025, 9:15am UTC](https://forums.foundationdb.org/t/is-there-is-any-basis-for-the-rumor-of-change-of-apple-participation-in-the-foundationdb/4958 "2025-07-22T09:15:51Z")

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Hi all, My team is considering to use FoundationDB for the new project. We got a feedback from architect that they believe that Apple is sun setting its involvement with FoundationDB. We can’t find any confirmation of …

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## [Why many clientThreads will cause fdbserver(stateless & grv\_proxy) CPU too high?](https://forums.foundationdb.org/t/why-many-clientthreads-will-cause-fdbserver-stateless-grv-proxy-cpu-too-high/4969)

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**Author:** [@ivan](https://forums.foundationdb.org/u/ivan)\
**Replies:** 9\
**Last updated:** [July 17, 2025, 9:55am UTC](https://forums.foundationdb.org/t/why-many-clientthreads-will-cause-fdbserver-stateless-grv-proxy-cpu-too-high/4969 "2025-07-17T09:55:27Z")

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In my production environment, I am using FoundationDB version 7.2.5. We have developed an application which use github.com/apple/foundationdb/bindings/go to operate FoundationDB： networkOptions := fdb.Options() err := …

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## [Distributed transaction performance test](https://forums.foundationdb.org/t/distributed-transaction-performance-test/4976)

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**Author:** [@liunyl](https://forums.foundationdb.org/u/liunyl)\
**Replies:** 3\
**Last updated:** [July 17, 2025, 6:17am UTC](https://forums.foundationdb.org/t/distributed-transaction-performance-test/4976 "2025-07-17T06:17:16Z")

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We’re trying to test the performance of distributed transaction on FoundationDB. We’re running the test with 6 cloud servers on gcp, with 8 cores each(c4-standard-8), and a disk with 3000IOPS and 200mb throughput. Sinc…

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## [Foundation db process degrade alert for a cluster](https://forums.foundationdb.org/t/foundation-db-process-degrade-alert-for-a-cluster/4927)

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**Author:** [@soumitra](https://forums.foundationdb.org/u/soumitra)\
**Replies:** 3\
**Last updated:** [June 25, 2025, 9:13am UTC](https://forums.foundationdb.org/t/foundation-db-process-degrade-alert-for-a-cluster/4927 "2025-06-25T09:13:31Z")

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we are running a 6 node cluster for foundation db and we are getting foundation db process degrade alert intermittently and that is getting resolved automatically after 24 hours on average . Servers are not loaded and n…

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## [DBA SwitchOverPossibleDR AgentsIncorrectSetup during fdbdr switch](https://forums.foundationdb.org/t/dba-switchoverpossibledr-agentsincorrectsetup-during-fdbdr-switch/4950)

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**Author:** [@czephyr](https://forums.foundationdb.org/u/czephyr)\
**Replies:** 2\
**Last updated:** [June 20, 2025, 5:02pm UTC](https://forums.foundationdb.org/t/dba-switchoverpossibledr-agentsincorrectsetup-during-fdbdr-switch/4950 "2025-06-20T17:02:33Z")

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I’m running two clusters and one of those clusters runs a set of dr\_agent processes. I can’t seem to make the switchover work. Seems I encounter DBA\_SwitchOverPossibleDRAgentsIncorrectSetup. This is the event trace fr…

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## [Delayed FDB dr?](https://forums.foundationdb.org/t/delayed-fdb-dr/4925)

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**Author:** [@czephyr](https://forums.foundationdb.org/u/czephyr)\
**Replies:** 2\
**Last updated:** [June 20, 2025, 4:56pm UTC](https://forums.foundationdb.org/t/delayed-fdb-dr/4925 "2025-06-20T16:56:25Z")

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I’m setting up a delayed FDB DR setup. Some of the cluster replicas we have on other software are delayed, theyre very useful in case something messes with the data, imagine a mistake in dropping rows. I understand tha…

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## [DR and database clients](https://forums.foundationdb.org/t/dr-and-database-clients/2621)

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**Author:** [@ryanworl](https://forums.foundationdb.org/u/ryanworl)\
**Replies:** 2\
**Last updated:** [June 20, 2025, 4:19pm UTC](https://forums.foundationdb.org/t/dr-and-database-clients/2621 "2025-06-20T16:19:37Z")

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DR doesn’t have any interaction with database clients, correct? That is, after a switch the clients connected to the old primary will just see the database being locked and the cluster file on all the clients doesn’t get…

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## [View the completion time of restore job](https://forums.foundationdb.org/t/view-the-completion-time-of-restore-job/4936)

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**Author:** [@shiberus](https://forums.foundationdb.org/u/shiberus)\
**Replies:** 2\
**Last updated:** [June 19, 2025, 8:21am UTC](https://forums.foundationdb.org/t/view-the-completion-time-of-restore-job/4936 "2025-06-19T08:21:10Z")

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Hi dears, I’m new to foundationdb and need some clarifications. Recently, i tried to restore from foundationdb snapshot, and then successfully. When using fdbrestore status -t \<tag\> cli, i could only see the status “ru…

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## [Converting cluster from non-TLS to TLS seems to get stuck on coordinator change](https://forums.foundationdb.org/t/converting-cluster-from-non-tls-to-tls-seems-to-get-stuck-on-coordinator-change/4920)

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**Author:** [@hxu](https://forums.foundationdb.org/u/hxu)\
**Replies:** 4\
**Last updated:** [June 18, 2025, 8:05am UTC](https://forums.foundationdb.org/t/converting-cluster-from-non-tls-to-tls-seems-to-get-stuck-on-coordinator-change/4920 "2025-06-18T08:05:44Z")

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Hi all, we’re trying to turn on TLS in an existing three data hall cluster, and the process seems to get stuck moving the operators off the non-TLS processes. Here’s our versions: Operator version - v2.3.0 FDB version…

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## [Sudden spike in TLogQueueCommitSlow warning](https://forums.foundationdb.org/t/sudden-spike-in-tlogqueuecommitslow-warning/4949)

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**Author:** [@mpatou\_openai](https://forums.foundationdb.org/u/mpatou_openai)\
**Replies:** 0\
**Last updated:** [June 18, 2025, 6:55am UTC](https://forums.foundationdb.org/t/sudden-spike-in-tlogqueuecommitslow-warning/4949 "2025-06-18T06:55:03Z")

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I noticed that in one of my clusters the number of warning message for TLogQueueCommitSlow has just jumped a lot since ~24 hours. To my understanding nothing has been changed in the cluster and I’m using PV using the di…

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## [How is the snapshot backup supposed to work, and how do I debug why it is failing?](https://forums.foundationdb.org/t/how-is-the-snapshot-backup-supposed-to-work-and-how-do-i-debug-why-it-is-failing/4941)

<div class="topic-metadata">

**Author:** [@danm](https://forums.foundationdb.org/u/danm)\
**Replies:** 0\
**Last updated:** [June 12, 2025, 7:05pm UTC](https://forums.foundationdb.org/t/how-is-the-snapshot-backup-supposed-to-work-and-how-do-i-debug-why-it-is-failing/4941 "2025-06-12T19:05:23Z")

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I’ve got the most simple ‘snapshot’ script. It’s not actually doing any snapshotting, I’m just trying to get something in there as a base doing some logging so I can see how it’s being called by FDB etc. So my script ex…

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