# General Discussion **URL:** https://discuss.aerospike.com/c/general-discussion/1.md?page=2 [Latest](https://discuss.aerospike.com/latest.md) · [Categories](https://discuss.aerospike.com/categories.md) · [Tags](https://discuss.aerospike.com/tags.md) **Page:** 3 --- ## [Multiple namespaces are not working with latest spring-boot](https://discuss.aerospike.com/t/multiple-namespaces-are-not-working-with-latest-spring-boot/10767)
**Author:** [@mishgun1](https://discuss.aerospike.com/u/mishgun1)\ **Replies:** 0\ **Last updated:** [January 11, 2024, 8:37pm UTC](https://discuss.aerospike.com/t/multiple-namespaces-are-not-working-with-latest-spring-boot/10767 "2024-01-11T20:37:50Z")
Hi, I am evaluating Aerospike DB for our needs and have a problem. We will have multiple namespaces and one of the app will need access to couple of them. I use com.aerospike:aerospike-client:8.0.0 com.aerospike:spring-b… --- ## [Network Disconnection Impact on Cluster State and Data Queries in a Multi-Node Cluster with Replicas](https://discuss.aerospike.com/t/network-disconnection-impact-on-cluster-state-and-data-queries-in-a-multi-node-cluster-with-replicas/10765)
**Author:** [@1028501412](https://discuss.aerospike.com/u/1028501412)\ **Replies:** 1\ **Last updated:** [January 11, 2024, 7:15pm UTC](https://discuss.aerospike.com/t/network-disconnection-impact-on-cluster-state-and-data-queries-in-a-multi-node-cluster-with-replicas/10765 "2024-01-11T19:15:03Z")
If a cluster with multiple nodes and two replicas experiences a network-related disconnection on one of the nodes, it can lead to an abnormal cluster state where data queries may fail without generating an AerospikeExcep… --- ## [How to Retrieve/Set Creation Time of a Set in Aerospike?](https://discuss.aerospike.com/t/how-to-retrieve-set-creation-time-of-a-set-in-aerospike/10755)
**Author:** [@Ahash](https://discuss.aerospike.com/u/Ahash)\ **Replies:** 1\ **Last updated:** [January 5, 2024, 8:20pm UTC](https://discuss.aerospike.com/t/how-to-retrieve-set-creation-time-of-a-set-in-aerospike/10755 "2024-01-05T20:20:03Z")
I’m working on a project where it’s essential to track the creation time of sets within the Aerospike database. I couldn’t find any built-in mechanism to retrieve the creation time of a set. Is there a recommended approa… --- ## [How to check unused sindex](https://discuss.aerospike.com/t/how-to-check-unused-sindex/10720)
**Author:** [@lee](https://discuss.aerospike.com/u/lee)\ **Replies:** 3\ **Last updated:** [December 27, 2023, 11:08pm UTC](https://discuss.aerospike.com/t/how-to-check-unused-sindex/10720 "2023-12-27T23:08:50Z")
I have so many sindex in my aerospike, and I think I have unused sindex how to check the unused sindex from aerospike using aql or asadm --- ## [Aerospike client C devel is missing](https://discuss.aerospike.com/t/aerospike-client-c-devel-is-missing/10699)
**Author:** [@Anurag\_Rana](https://discuss.aerospike.com/u/Anurag_Rana)\ **Replies:** 3\ **Last updated:** [December 19, 2023, 6:37pm UTC](https://discuss.aerospike.com/t/aerospike-client-c-devel-is-missing/10699 "2023-12-19T18:37:54Z")
https://artifacts.aerospike.com/artifacts/aerospike-client-c/4.6.18/aerospike-client-c-devel-4.6.18.ubuntu20.04.x86\_64.deb this file is missing along with many other files. I am not able to pip install aerospike client … --- ## [\[CE\] Strange behaviour when third node was added](https://discuss.aerospike.com/t/ce-strange-behaviour-when-third-node-was-added/10689)
**Author:** [@trapecija1](https://discuss.aerospike.com/u/trapecija1)\ **Replies:** 1\ **Last updated:** [December 11, 2023, 11:07pm UTC](https://discuss.aerospike.com/t/ce-strange-behaviour-when-third-node-was-added/10689 "2023-12-11T23:07:48Z")
Hello, Community edition, 6.0.0.1 We have a high-load cluster with 3 nodes ATM, replication factor 1 NVMe drives Intel DC4510, 10G network, 128GB RAM When we added a third node we are facing with strange behaviour of th… --- ## [Getting a KEY\_NOT\_FOUND\_ERROR on create, is that normal?](https://discuss.aerospike.com/t/getting-a-key-not-found-error-on-create-is-that-normal/10687)
**Author:** [@Fabricio](https://discuss.aerospike.com/u/Fabricio)\ **Replies:** 1\ **Last updated:** [December 8, 2023, 10:12am UTC](https://discuss.aerospike.com/t/getting-a-key-not-found-error-on-create-is-that-normal/10687 "2023-12-08T10:12:05Z")
Hi, My project uses aerospike-client-go/v5 and I implemented a helper function Create that invokes client’s Put with CREATE\_ONLY as RecordExistsAction in the WritePolicy. But, surprisingly, sometimes I get the KEY\_NOT\_… --- ## [Truncated Data Persistence Issue: Reappearance After Aerospike Node Restart](https://discuss.aerospike.com/t/truncated-data-persistence-issue-reappearance-after-aerospike-node-restart/10671)
**Author:** [@Ahash](https://discuss.aerospike.com/u/Ahash)\ **Replies:** 2\ **Last updated:** [November 30, 2023, 5:22am UTC](https://discuss.aerospike.com/t/truncated-data-persistence-issue-reappearance-after-aerospike-node-restart/10671 "2023-11-30T05:22:07Z")
I’m currently facing an issue in our Aerospike cluster where truncated data seems to reappear after a node restart. I’ve tried various steps, including adjusting defragmentation settings and manually triggering defragmen… --- ## [Upgrade 4.9 to 6.3](https://discuss.aerospike.com/t/upgrade-4-9-to-6-3/10654)
**Author:** [@Spellik](https://discuss.aerospike.com/u/Spellik)\ **Replies:** 5\ **Last updated:** [November 29, 2023, 12:27am UTC](https://discuss.aerospike.com/t/upgrade-4-9-to-6-3/10654 "2023-11-29T00:27:21Z")
Hello We trying upgrade cluster to new version. 5 nodes SI indexes cpp client After upgrade one node, near 90-95% queries with SI will timeout, with PK near 5%. Also on new node client connections in 3x times more A… --- ## [Replacement for PredExp on a List Bin of Strings](https://discuss.aerospike.com/t/replacement-for-predexp-on-a-list-bin-of-strings/10657)
**Author:** [@ag7](https://discuss.aerospike.com/u/ag7)\ **Replies:** 1\ **Last updated:** [November 22, 2023, 8:50pm UTC](https://discuss.aerospike.com/t/replacement-for-predexp-on-a-list-bin-of-strings/10657 "2023-11-22T20:50:59Z")
Hi Community, I have a bin of type List. I want to query and get the records for which this bin has a value equal to variable ‘val’, lets say. Using PredExp this can be done using - predExps = Arrays.asList( PredEx… --- ## [Unable to Drop Index in Aerospike Community Edition (Version 5.7.0.17)](https://discuss.aerospike.com/t/unable-to-drop-index-in-aerospike-community-edition-version-5-7-0-17/10652)
**Author:** [@Ahash](https://discuss.aerospike.com/u/Ahash)\ **Replies:** 2\ **Last updated:** [November 22, 2023, 3:48am UTC](https://discuss.aerospike.com/t/unable-to-drop-index-in-aerospike-community-edition-version-5-7-0-17/10652 "2023-11-22T03:48:01Z")
I’m currently facing an issue with dropping an index in Aerospike Community Edition (version 5.7.0.17). Despite successfully creating indexes using the CREATE INDEX command, I encounter a “Namespace Not Found” error when… --- ## [findByIndexed fails "Id must not be null"](https://discuss.aerospike.com/t/findbyindexed-fails-id-must-not-be-null/10586)
**Author:** [@Hetal\_Rathod](https://discuss.aerospike.com/u/Hetal_Rathod)\ **Replies:** 6\ **Last updated:** [November 20, 2023, 5:02pm UTC](https://discuss.aerospike.com/t/findbyindexed-fails-id-must-not-be-null/10586 "2023-11-20T17:02:46Z")
Hi Team, Can anyone please help me on the below issue - I am trying to fetch an entity based on an indexed field. Spring Data is actually able to retrieve the entity from Aerospike DB but unfortunately, it is not sendi… --- ## [Aerospike write expression using Operate](https://discuss.aerospike.com/t/aerospike-write-expression-using-operate/10627)
**Author:** [@Vivek](https://discuss.aerospike.com/u/Vivek)\ **Replies:** 7\ **Last updated:** [November 10, 2023, 4:22pm UTC](https://discuss.aerospike.com/t/aerospike-write-expression-using-operate/10627 "2023-11-10T16:22:54Z")
Does Aerospike lock the record before operating (read-Write) on the record? Or it uses optimistic concurrency control I.e uses generation while applying change? --- ## [How does query work in Aerospike?](https://discuss.aerospike.com/t/how-does-query-work-in-aerospike/10625)
**Author:** [@cheng\_chen](https://discuss.aerospike.com/u/cheng_chen)\ **Replies:** 4\ **Last updated:** [November 9, 2023, 6:05pm UTC](https://discuss.aerospike.com/t/how-does-query-work-in-aerospike/10625 "2023-11-09T18:05:10Z")
If a client wants to query a record in Aerospike cluster with multiple nodes, does this client need to send this query to all nodes (basically N queries with N equal to the number of nodes), or maximum two queries (one q… --- ## [How to show client latency](https://discuss.aerospike.com/t/how-to-show-client-latency/10622)
**Author:** [@goasutlor](https://discuss.aerospike.com/u/goasutlor)\ **Replies:** 1\ **Last updated:** [November 9, 2023, 3:25am UTC](https://discuss.aerospike.com/t/how-to-show-client-latency/10622 "2023-11-09T03:25:05Z")
I’m not sure how can i get the client latency which access to the aerospike cluster or not? --- ## [Spring-boot-starter-data-aerospike version upgrades](https://discuss.aerospike.com/t/spring-boot-starter-data-aerospike-version-upgrades/10585)
**Author:** [@Hetal\_Rathod](https://discuss.aerospike.com/u/Hetal_Rathod)\ **Replies:** 1\ **Last updated:** [November 6, 2023, 8:50pm UTC](https://discuss.aerospike.com/t/spring-boot-starter-data-aerospike-version-upgrades/10585 "2023-11-06T20:50:50Z")
Hi Team, We are using spring-boot-starter-data-aerospike for easy springboot application integration which supports spring data out of the box. I wanted to check if we can use this and proceed with the development. Woul… --- ## [How do I add a bin to a set with a default value?](https://discuss.aerospike.com/t/how-do-i-add-a-bin-to-a-set-with-a-default-value/10566)
**Author:** [@Gajendra](https://discuss.aerospike.com/u/Gajendra)\ **Replies:** 1\ **Last updated:** [October 17, 2023, 9:42pm UTC](https://discuss.aerospike.com/t/how-do-i-add-a-bin-to-a-set-with-a-default-value/10566 "2023-10-17T21:42:35Z")
Hi, Consider set1 having 500 records. It has key and bin1. Need to add bin2 with default value. Example like below 'bin2' : 'value2'. Is there any way to add value without get each key from client , add default va… --- ## [How to persistently remove a column in aerospike(ce)](https://discuss.aerospike.com/t/how-to-persistently-remove-a-column-in-aerospike-ce/10452)
**Author:** [@moukey](https://discuss.aerospike.com/u/moukey)\ **Replies:** 3\ **Last updated:** [October 12, 2023, 4:13pm UTC](https://discuss.aerospike.com/t/how-to-persistently-remove-a-column-in-aerospike-ce/10452 "2023-10-12T16:13:43Z")
hi, I have a problem that whenever I restart the cluster, the previously deleted data comes back, how do I persistently delete this data to avoid unlimited growth of disk storage --- ## [How to add a bin with value to existing key](https://discuss.aerospike.com/t/how-to-add-a-bin-with-value-to-existing-key/2584)
**Author:** [@Mkrtich\_Soghomonyan](https://discuss.aerospike.com/u/Mkrtich_Soghomonyan)\ **Replies:** 3\ **Last updated:** [March 3, 2016, 5:44pm UTC](https://discuss.aerospike.com/t/how-to-add-a-bin-with-value-to-existing-key/2584 "2016-03-03T17:44:56Z")
Hi Is there a way to add a (bin, value) to existing key in atomic way. For example there is a key with data 'bin1': 'value1' and by doing something similar to client.add\_bin(key, ‘bin2’, ‘value2’) get 'bin1': 'value… --- ## [Aerospike cpu high](https://discuss.aerospike.com/t/aerospike-cpu-high/10555)
**Author:** [@lee](https://discuss.aerospike.com/u/lee)\ **Replies:** 1\ **Last updated:** [October 6, 2023, 1:23am UTC](https://discuss.aerospike.com/t/aerospike-cpu-high/10555 "2023-10-06T01:23:56Z")
The cpu is too high. Can you tell me why \[ 3 node cluster \] cpu: 40 core client connection : 700 ~ 2000 read / write : 1K~2K currently cpu usage 70 ~ 80% --- ## [Information about threads created by the server](https://discuss.aerospike.com/t/information-about-threads-created-by-the-server/10523)
**Author:** [@mvk](https://discuss.aerospike.com/u/mvk)\ **Replies:** 4\ **Last updated:** [September 25, 2023, 8:43am UTC](https://discuss.aerospike.com/t/information-about-threads-created-by-the-server/10523 "2023-09-25T08:43:13Z")
Hi all: I am running Aerospike server in a pod with single core and default configuration as far as threading is concerned. I see 88 threads created by the server. I tried changing “service-threads” configuration. If I … --- ## [Slower to query set with 1 record than set with millions records](https://discuss.aerospike.com/t/slower-to-query-set-with-1-record-than-set-with-millions-records/10480)
**Author:** [@dwyzlic-ias](https://discuss.aerospike.com/u/dwyzlic-ias)\ **Replies:** 1\ **Last updated:** [September 14, 2023, 10:17pm UTC](https://discuss.aerospike.com/t/slower-to-query-set-with-1-record-than-set-with-millions-records/10480 "2023-09-14T22:17:14Z")
Hi! I have a aerospike cluster (8nodes) that contain 2 sets. 1 set with ~100 millions records 1 set with 1 record. The cluster get 600\_000 reads per seconds. All made to the set with 100 millions records. When I query… --- ## [Most efficient way to implement 2 counters in an Aerospike bin](https://discuss.aerospike.com/t/most-efficient-way-to-implement-2-counters-in-an-aerospike-bin/10486)
**Author:** [@Kartik](https://discuss.aerospike.com/u/Kartik)\ **Replies:** 2\ **Last updated:** [September 2, 2023, 12:24pm UTC](https://discuss.aerospike.com/t/most-efficient-way-to-implement-2-counters-in-an-aerospike-bin/10486 "2023-09-02T12:24:23Z")
In one of our services having very strict SLA requirements, we use Aerospike solely as an in-memory store i.e only RAM(something like memcached/redis). namespace \ { memory-size 64G # 4GB of memory to be used for i… --- ## [How to know which client ip is causing these warnings in the Aerospike logs](https://discuss.aerospike.com/t/how-to-know-which-client-ip-is-causing-these-warnings-in-the-aerospike-logs/10356)
**Author:** [@Archie\_Sicat](https://discuss.aerospike.com/u/Archie_Sicat)\ **Replies:** 2\ **Last updated:** [August 2, 2023, 8:36am UTC](https://discuss.aerospike.com/t/how-to-know-which-client-ip-is-causing-these-warnings-in-the-aerospike-logs/10356 "2023-08-02T08:36:24Z")
Jul 24 2023 02:31:35 GMT: WARNING (particle): (particle\_list.c:4465) AS\_CDT\_OP\_LIST\_APPEND: failed Jul 24 2023 02:31:35 GMT: WARNING (rw): (write.c:2009) {arrow\_prod} write\_master: failed as\_bin\_cdt\_stack\_modify\_from\_cli… --- ## [Stop Write on batch loading](https://discuss.aerospike.com/t/stop-write-on-batch-loading/10375)
**Author:** [@fryifta](https://discuss.aerospike.com/u/fryifta)\ **Replies:** 4\ **Last updated:** [July 31, 2023, 9:52pm UTC](https://discuss.aerospike.com/t/stop-write-on-batch-loading/10375 "2023-07-31T21:52:24Z")
Hi, Stop write is triggered with not apparent reason. I’m not sure what is going on as there is plenty of memory and storage available. This is triggered once I try to load data in a batch. Thanks for the help! single n… --- ## [What hardware devices (and their part #'s) are needed for maximum performance from aerospike 6.3](https://discuss.aerospike.com/t/what-hardware-devices-and-their-part-s-are-needed-for-maximum-performance-from-aerospike-6-3/10313)
**Author:** [@cepellegrini](https://discuss.aerospike.com/u/cepellegrini)\ **Replies:** 3\ **Last updated:** [July 12, 2023, 3:03am UTC](https://discuss.aerospike.com/t/what-hardware-devices-and-their-part-s-are-needed-for-maximum-performance-from-aerospike-6-3/10313 "2023-07-12T03:03:03Z")
I’m looking for info on hardware to support maximum performance from Aerospike 6.3. I expect to run Redhat 9.X OS. Processor would be a 3rd Generation Intel® Xeon® supporting DDR4 RDIMM, LRDIMM, 3DS DIMM and with ECC up… --- ## [Profile-Guided Optimization (PGO)](https://discuss.aerospike.com/t/profile-guided-optimization-pgo/10301)
**Author:** [@zamazan4ik](https://discuss.aerospike.com/u/zamazan4ik)\ **Replies:** 1\ **Last updated:** [July 7, 2023, 7:39pm UTC](https://discuss.aerospike.com/t/profile-guided-optimization-pgo/10301 "2023-07-07T19:39:42Z")
Hi! Recently I tested a lot of software with PGO and measured the performance improvements from PGO - the results are here. Since my results show interesting improvements on a lot of databases (e.g. on Redis) I think it… --- ## [Batch Write TTL Policy](https://discuss.aerospike.com/t/batch-write-ttl-policy/10271)
**Author:** [@yarosman](https://discuss.aerospike.com/u/yarosman)\ **Replies:** 3\ **Last updated:** [June 21, 2023, 3:13pm UTC](https://discuss.aerospike.com/t/batch-write-ttl-policy/10271 "2023-06-21T15:13:52Z")
Does it possible to set different ttl for keys in the batch write request? --- ## [Batch write size](https://discuss.aerospike.com/t/batch-write-size/10263)
**Author:** [@yarosman](https://discuss.aerospike.com/u/yarosman)\ **Replies:** 5\ **Last updated:** [June 20, 2023, 8:03pm UTC](https://discuss.aerospike.com/t/batch-write-size/10263 "2023-06-20T20:03:00Z")
From the official documentation: "Multiple keys use one network request, which is beneficial for a large number of small records, but not as beneficial when the number of records per node is small, or the data returned p… --- ## [Do we have aerospike UI in latest version?](https://discuss.aerospike.com/t/do-we-have-aerospike-ui-in-latest-version/10243)
**Author:** [@shraddhajain](https://discuss.aerospike.com/u/shraddhajain)\ **Replies:** 1\ **Last updated:** [June 5, 2023, 9:52pm UTC](https://discuss.aerospike.com/t/do-we-have-aerospike-ui-in-latest-version/10243 "2023-06-05T21:52:30Z")
Do we have aerospike UI in latest version? [Previous page](https://discuss.aerospike.com/c/general-discussion/1.md?page=1) [Next page](https://discuss.aerospike.com/c/general-discussion/1.md?page=3)