Tom Pearce
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Activity overview
Latest activity by Tom Pearce-
Tom Pearce created an article, How To Migrate User Credentials from One Cluster to Another
ContextWhen setting up a new Aerospike cluster, it could be useful to copy the metadata related to user credentials from an existing Aerospike implementation to a new one.Method Copy the security....
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Tom Pearce created an article, How to move recreate or retain the System Metadata directory
ContextThe System Metadata (SMD) directory holds information on Secondary Indexes, UDF definitions, Truncation, Strong Consistency, User/Roles and more. It may be necessary to move, migrate or reta...
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Tom Pearce created an article, Ran out of queue space XDR cannot keep up with write
Problem DescriptionAerospike log file contains this warning: WARNING (xdr): (xdr_dlog.c:568) (repeated:173276) XDR digestlog cannot keep up with writes. Dropping record. Older versions would h...
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Tom Pearce created an article, What might cause XDR to re-log a record?
DetailThere are certain situations where XDR cannot ship a record and so the digest log entry is re-logged in the digest log so that the shipping can be attempted again later. What are these situat...
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Tom Pearce created an article, 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 limit for a namespace (1023) is breached, this happens due to the resurrection of non durably deleted records by cold rest...
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Tom Pearce created an article, XDR Slowdown During Migration
Problem DescriptionWhen a cluster is shipping to a remote DC via XDR and cluster events have triggered migrations, XDR shipping to the remote DC slows down.ExplanationThis is an expected consequenc...
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Tom Pearce created an article, Unable to access my local disk or programs after installing Aerospike
Problem DescriptionOn installing Aerospike with the following namespace configuration, I am unable to access any of my local disk or programs. Aerospike is working as expected. namespace test { ...
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Tom Pearce created an article, How does Rack Aware and Prefer Uniform Balance interact
DetailBoth rack awareness and uniform balance affect the distribution of partitions across nodes. What happens when a cluster has both enabled?AnswerUniform balance does not take rack-id into accou...
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Tom Pearce created an article, Batch transaction against a set with set level permissions throws role violation
Problem DescriptionWhen a role has been given set level permissions, when a batch call is made as follows, a role violation error is returned even if the user has the role with correct permissions:...
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Tom Pearce created an article, Is there an IO operation during a query with includeBinData False against TTL
DetailMy application uses predicate filtering and has includeBinData set to false. In what scenario would it incur an IO operation? qp.includeBinData=false; RecordSet rs = client.query(qp, genStat...