Analyzer openresty-cosocket-no-keepalive

# Name

openresty-cosocket-no-keepalive - OpenResty Cosocket Without Keepalive Flame Graph

This analyzer profiles cosocket operations that do not utilize keepalive connections in OpenResty-based applications including Kong and APISIX. It captures Lua-land stack traces when cosockets are closed without being returned to the connection pool, generating flame graphs that reveal code paths bypassing keepalive mechanisms. The analyzer is crucial for identifying inefficient connection management patterns that may lead to connection pool exhaustion and degraded performance.

# Resource Category

Network I/O.

# Application Type & Technical Stack

• OpenResty
• Kong
• APISIX

# Command Line Syntax

The analyzer can be invoked directly on the command-line via the orxray utility from the openresty-xray-cli software package.

Alternatively, the analyzer can also be invoked manually or automatically on the web console UI of OpenResty XRay (like on the Advanced web page).

# PID is the target process PID.
orxray analyzer run openresty-cosocket-no-keepalive -p PID

# trace a shell command directly
orxray analyzer run openresty-cosocket-no-keepalive -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run openresty-cosocket-no-keepalive -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run openresty-cosocket-no-keepalive --exe /path/to/exe/file

# Tracing Multiple Processes

Supported.

# Output Formats

• Flame Graphs

# Author

The OpenResty Inc. Team.

# Copyright

Copyright (C) by OpenResty Inc. All rights reserved.