Kumar Ghosh
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Activity overview
Latest activity by Kumar Ghosh-
Kumar Ghosh created an article,
Error: Authentication to the db server failed,Advice:Please check auth parameters ...
Overview You may get the below error when a client tries to connect from a JDBC thin client to an Oracle database behind ScaleArc. YYYY-MM-DD HH:MM:SSCID: 16, Client IP: 10.xx.xx.xx, User: <databas...
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Kumar Ghosh created an article,
Embedded MySQL Marked As Vulnerable by Nessus (CVE-2006-1516)
Overview A network scan of the embedded MySQL in the ScaleArc appliance may reveal the presence of a vulnerability that allows remote attackers to read portions of memory via a username without a t...
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Kumar Ghosh created an article,
Identifying Client Application IP Addresses & Usernames from Historical Logs
Overview You may want to export a list of IP addresses and the usernames for all the connection requests sent by client applications to ScaleArc cluster(s) over a certain duration in the past. So...
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Kumar Ghosh created an article,
Configuring LDAP with ScaleArc
Overview LDAP can be used to offload authentication to another service instead of ScaleArc managing logins locally while logging in through the UI. Information There are no known issues in a Scal...
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Kumar Ghosh created an article,
Issues With Performance Compared to Direct Connection to RDS
Overview When running performance benchmarks and comparing results between a direct connection to Amazon RDS & connecting through ScaleArc to RDS, you may observe reduced throughput while connectin...
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Kumar Ghosh created an article,
Resolving 'Closing connection due to unexpected external event' errors
Overview "Closing connection" errors can be found in the Alert Log or shown in the Health monitor alerts when adding database servers to your ScaleArc load balancer. The alerts will typically occur...
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Kumar Ghosh created an article,
Error: 520, Message: NOTE : Double handover
Overview This alert might be reported in the Alert Log, and the full message is like so 2021-04-08 12:00:35 CID: 1, Cust_int: -1, Server_DBID: -1, Error: 520, Message: NOTE : Double handover in Thr...
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Kumar Ghosh created an article,
High Memory Consumption Leading to Clusters Failing
Overview Memory consumption spiking during the normal operation of ScaleArc will take all the configured clusters offline. Invoking a failover brings up the same issues on the new primary in a few ...
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Kumar Ghosh created an article,
DB INSTANCE RESOLUTION ALERT
Overview The above error may sometimes show up for a cluster in the Alert Log, accompanied by sporadic connection timeouts and the HEALTH ALERT : DB server not reachable error as well. An example o...
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Kumar Ghosh created an article,
ERROR: 5653 Error occured while configuring HA pair
Overview The following error may sometimes show up when trying to pair two ScaleArc machines into a HA cluster. Solution Diagnosis This happens if the machines use Active Directory (AD) for auth...