Dynatrace
AUGUST 12, 2021
The certificates for the signatures of all Dynatrace-provided binaries and installations for Microsoft Windows systems were previously based on RSA 2048 keys. These changes should be totally transparent for Dynatrace end users who have updated Windows systems.
Brendan Gregg
MAY 8, 2021
It may be due to queueing, especially from file systems that send a batch of writes. 66-generic (lgud-bgregg) 12/16/2020 _x86_64_ (8 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 7.70 avg-cpu: %user %nice %system %iowait %steal %idle 7.90 avg-cpu: %user %nice %system %iowait %steal %idle 7.70 Linux 4.15.0-66-generic
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Percona
AUGUST 29, 2018
For optimum performance, a PostgreSQL database depends on the operating system parameters being defined correctly. PostgreSQL uses System V (SysV) that requires SHMMAX setting. So now it requires fewer bytes of System V shared memory. DETAIL: Failed system call was shmget(key=1, size=2072576, 03600). Until version 9.2,
Percona
OCTOBER 2, 2023
Percona Toolkit is a collection of advanced open source command-line tools, developed and used by the Percona technical staff, that are engineered to perform a variety of MySQL, MariaDB, MongoDB, and PostgreSQL server and system tasks that are too difficult or complex to perform manually. pt-summary --user=root [?2004l# virtual = 2.2G
SQL Server According to Bob
JANUARY 31, 2017
On Linux the total number of buffers that can be read or written, in a single ABI request, is capped at 2048. The buffers must be the operating system page size (4K.) Within LibOS, when we detect a request exceeding 2048 OS pages, we split the request into multiple 2048 page chunks, deemed sub-I/O requests.
Percona
AUGUST 21, 2023
. # # Generate private key for self-signed Certificate Authority # certtool --generate-privkey --bits 4096 --outfile /etc/ssl/private/mycakey.pem In this case, the CA certificate is configured to expire in ten years: # # Define CA certificate attributes # echo "cn = my-ldap ca cert_signing_key expiration_days = 3650" > /etc/ssl/ca.info An internal (..)
Percona
DECEMBER 27, 2022
Encrypting data at rest in a database management system (DBMS) refers to securing data by encrypting it when it is not being used or accessed. Several database management systems support cluster-level encryption, including Oracle, MySQL, Microsoft SQL Server, MongoDB, and Cassandra. Database-level encryption. Table-level encryption.
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