Lucien
- Total activity 119
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 0
- Subscriptions 0
Activity overview
Latest activity by Lucien-
Lucien created an article, Why doesn't system memory usage go down after records expire or are deleted?
DetailAfter a period of heavy expiration, eviction or deletes, the record count on a node drops and index_used_bytes falls, but the node's memory usage does not. system_free_mem_pct stays low, and ...
-
Lucien created an article, Unexplained XDR Outbound Connector Connection Reset
Problem DescriptionXDR lag to a datacenter behind an Aerospike outbound connector (or the XDR Proxy) grows continuously and does not recover, while the destination system itself is healthy.Typical ...
-
Lucien created an article, Why is CPU being used by kworker and kswapd0 causing latencies?
Problem DescriptionWhen an Aerospike system is experiencing latency the following symptoms may be observed: high disk load observed via the uptime commandtop output showing CPU utilization by eithe...
-
Lucien created an article, How to zeroize multiple storage devices simultaneously?
ContextCustomer may need to dd (erase) multiple disk on a server. This can occur when initializing a system configured for multiple storage-engine devices (ssd, nvmes, raw disk partitions) .Method...
-
Lucien created an article, Why is asd process blocked for more than 120 Seconds?
Problem DescriptionCustomer is finding "INFO: task NAME:PID blocked for more than 120 seconds" in /var/log/messages or dmesg. This indicates that the process requested a blocking resource such as a...
-
Lucien created an article, How to completely remove and clean-up an Aerospike server installation?
ContextThe following describes the procedure for the proper removal or uninstall followed by a clean-up of an Aerospike installation. This document will give an overview of the packages, files, and...
-
Lucien created an article, How to Disable firewalld in Centos 7
ContextWe have found, in several situations, that there was something new in CentOS/RHEL 7 that was blocking ports. The firewall on Redhat 7 Linux system is enabled by default. It may have to be di...
-
Lucien created an article, System running out of file descriptors
Problem DescriptionA node has ran out of file descriptors and is getting the following warnings: Nov 14 2017 00:54:57 GMT: WARNING (demarshal): (thr_demarshal.c:454) Hit OS file descriptor limit (...
-
Lucien created an article, How to modify a record ttl on a non-expirable record using a UDF?
ContextObjects can have a ttl (time to live) set which means that they will expire (deleted) when after the ttl is reached. Objects can also never expire if their ttl is set to -1 (will cause serve...
-
Lucien created an article, Why do I get "Invalid namespace error" ?
Problem DescriptionClient got "Invalid namespace" error exception even though the namespace is correctly specified. Caused by: com.aerospike.client.AerospikeException: Invalid namespace: bar at co...