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How to resolve Failed Assertion on insufficient privileges to switch user to X error?
Problem DescriptionWARNINGS: May 16 2019 22:31:25 GMT: FAILED ASSERTION (misc):...
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How do I reset the eviction depth?
ContextEvictions in Aerospike is the process of accelerating the expirations of...
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How do I convert the eviction void time to a date?
ContextThe current Eviction Void Time can be found in the following metrics: Ev...
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How to create a scan and touch UDF
ContextThere are certain circumstances in which it may be necessary to simulate...
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How to recover from the unbalanced disk usage while adding new device
ContextWhile adding a new device to a namespace, only new records will be writt...
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How to move recreate or retain the System Metadata directory
ContextThe System Metadata (SMD) directory holds information on Secondary Index...
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How to remove the Primary Key stored alongside your data without altering the record TTL
ContextBy default, Aerospike does not store the PK (Primary Key) alongside the ...
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The asd process cold starts after a dirty exit, which appears to be clean
Problem DescriptionWhen starting asd after a successful process shutdown, with ...
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Client exceptions when removing an Aerospike node from a cluster
Problem DescriptionWhen taking down an Aerospike node for routine maintenance t...
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High client connections on certain nodes due to uneven data distribution
Problem DescriptionIf a node has more partitions than the other nodes in the cl...
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High client connections on certain nodes due to underperformance
Problem DescriptionIf a node is not performing as expected, for example slow di...
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High client connections on certain nodes due to info requests
Problem DescriptionAn increased number of info requests hitting a particular no...
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High client connections on certain nodes due to hotkey
Problem DescriptionA specific key being accessed very frequently can cause a hi...
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How to confirm if data is being rebalanced in an Aerospike cluster?
ContextSometimes I need to add or remove nodes in Aerospike cluster or issue a ...
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FAQ Why are deleted records resurrected after a cold start in AP mode?
DetailAfter a node with namespaces running in AP mode has cold started, it can ...
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FAQ - How does Aerospike eviction work?
DetailWhen a customer has configured records to have a TTL (time to live) and c...
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Aerospike fails to start due to corrupted features.conf file - trailing garbage error
Problem DescriptionThe asd process fails to start with the following error: Mar...
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FAQ: What happens if my cluster suffers a node failure while I have nodes quiesced?
DetailIf nodes suffer a failure during the time that other node(s) in the clust...
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FAQ - What options are available for throttling scans in Aerospike 4.7 and higher?
DetailIn Aerospike 4.7 a new Scan sub-system was introduced which brought signf...
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ASD fails to start after a cold restart due to set limit breach on a namespace
Problem DescriptionASD fails to start up after a cold restart when the set limi...
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How does Aerospike defragmentation behave with respect to write queues?
DetailFor each device associated with an Aerospike namespace there is a write q...
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What is the expected behaviour when an Aerospike node experiences an SSD hardware failure?
DetailWhen an SSD experiences a catastrophic hardware failure, what is the beha...
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Avail-pct drops without defragmentation starting
Problem DescriptionOn a small namespace (less than 256Mb) stored on a filesyste...
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Node Not Found For Partition using AQL with Strong Consistency
Problem DescriptionWhen a namespace has been configured to be strongly consiste...
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Why is encryption at rest preferable to LUKS?
DetailWhy is encryption at rest preferable to LUKS (Linux Unified Key Setup)? W...
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Why is the high-water-mark-disk-pct recommended to be set to 50%?
ContextNote: As of version 4.9, the default for nsup-period changed to 0. This ...
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What does “found redundant connections to same node” mean?
DetailSome occurrences, or a continuous stream of the following message may be ...
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What does “node id changed” in the logs mean?
DetailWhen changing the node-id of a node and then restarting Aerospike, messag...
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What are unanimous configuration parameters?
DetailConfiguration parameters that are classified as unanimous must be the sam...
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How does Defragmentation work in Aerospike?
DetailAerospike always writes data to storage-engine device namespaces in large...