shmsr
/ flock.go
Created
November 12, 2020 18:03
— forked from karrick/flock.go
Examples of using advisory locking with golang.org/x/sys/unix
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // These funcitons ought to come with a huge warning. Using them without | |
| // understanding the differences between blocking and non-blocking, or | |
| // between exclusive and shared access, and when to use them will cause | |
| // problems that do not necessarily manifest right away, but rather | |
| // fester in your program and rear their ugly head in the middle of the | |
| // night when you're sleeping. | |
| // | |
| // If you use advisory file locking, *always* use Shared locking every | |
| // single time you read the file, and *always* use Exclusive locking every | |
| // single time you write the file. Period. There are no exceptions. Heed |
shmsr
/ benchmark-commands.txt
Created
April 28, 2020 09:37
— forked from jkreps/benchmark-commands.txt
Kafka Benchmark Commands
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Producer | |
| Setup | |
| bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test-rep-one --partitions 6 --replication-factor 1 | |
| bin/kafka-topics.sh --zookeeper esv4-hcl197.grid.linkedin.com:2181 --create --topic test --partitions 6 --replication-factor 3 | |
| Single thread, no replication | |
| bin/kafka-run-class.sh org.apache.kafka.clients.tools.ProducerPerformance test7 50000000 100 -1 acks=1 bootstrap.servers=esv4-hcl198.grid.linkedin.com:9092 buffer.memory=67108864 batch.size=8196 |