Squid

Monitor your squid proxies

Extension

Product information
Release notes

Overview

Monitor your squid proxies via the cache manager counters API.

Get started

Requirements

Dynatrace OneAgent
Squid manager accessible from localhost
Counter action available

You can test that this works by visiting:

http://localhost:3128/squid-internal-mgr/counters

Substitute the protocol or port based on your squid configuration

Monitoring configuration

Create a monitoring configuration that targets your squid servers.

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Extension content

Content typeNumber of items included

screen logs cards

2

metric metadata

52

screen layout

2

screen properties

2

generic relationship

2

screen entities lists

6

screen chart groups

6

dashboards

1

list screen layout

2

generic type

1

screen injections

4

Feature sets

Below is a complete list of the feature sets provided in this version. To ensure a good fit for your needs, individual feature sets can be activated and deactivated by your administrator during configuration.

Feature setsNumber of metrics included

Metric name	Metric key	Description	Unit
CPU Time	squid.cpu_time.count	Amount of CPU used by squid	Percent
Page Faults	squid.page_faults.count	Number of (major) page faults	Count
Select Loops	squid.select_loops.count	Number of times Squid called select( ) or poll( ) in the main I/O loop	Count
Swap Files Cleaned	squid.swap.files_cleaned.count	Number of orphaned cache files removed by the periodic cleanup procedure	Count
Swap Ins	squid.swap.ins.count	Number of objects (swap files) read from disk	Count
Swap Outs	squid.swap.outs.count	Number of objects (swap files) saved to disk	Count
Unlink Requests	squid.unlink.requests.count	Number of unlink requests given to the (optional) unlinkd process	Count

Metric name	Metric key	Description	Unit
Aborted Requests	squid.aborted_requests.count	Number of aborted requests due to client-side aborts	Count
Client HTTP Errors	squid.client_http.errors.count	Number of client transactions that resulted in an error	Count
Client HTTP Hits	squid.client_http.hits.count	Number of cache hits in response to client requests	Count
Client HTTP Requests	squid.client_http.requests.count	Number of HTTP requests received from clients	Count
Client HTTP Hit Bytes Out	squid.client_http.hit_kbytes_out.count	Amount of traffic sent to clients in responses that are cache hits	KibiByte
Client HTTP Bytes In	squid.client_http.kbytes_in.count	Amount of traffic received from clients in their requests	KibiByte
Client HTTP Bytes Out	squid.client_http.kbytes_out.count	Amount of traffic sent to clients in responses	KibiByte

Metric name	Metric key	Description	Unit
Cache Digest Bytes Received	squid.cd.kbytes_recv.count	Cache Digest traffic received	KibiByte
Cache Digest Bytes Sent	squid.cd.kbytes_sent.count	Cache Digest traffic sent	KibiByte
Cache Digest Memory	squid.cd.local_memory.count	Amount of memory used by the cache digest	KibiByte
Cache Digest Memory	squid.cd.memory.count	Amount of memory used by enabling the Cache Digests' feature	KibiByte
Cache Digest Messages Received	squid.cd.msgs_recv.count	Number of Cache Digest messages received	Count
Cache Digest Messages Sent	squid.cd.msgs_sent.count	Number of Cache Digest messages sent	Count
Cache Digest Times Used	squid.cd.times_used.count	Number of times Cache Digests resulted in the selection of a neighbor as the next-hop for a cache miss	Count

Metric name	Metric key	Description	Unit
Server Other Errors	squid.server.other.errors.count	Number of Gopher, WAIS, and SSL requests that resulted in an error	Count
Server Other Bytes In	squid.server.other.kbytes_in.count	Amount of traffic read from Gopher, WAIS, and SSL servers	KibiByte
Server Other Bytes Out	squid.server.other.kbytes_out.count	Amount of traffic written to Gopher, WAIS, and SSL servers	KibiByte
Server Other Requests	squid.server.other.requests.count	Number of 'other' server-side requests. Currently, the other protocols are Gopher, WAIS, and SSL	Count

Metric name	Metric key	Description	Unit
Server All Errors	squid.server.all.errors.count	Number of server-side requests (all protocols) that resulted in some kind of error	Count
Server All Bytes In	squid.server.all.kbytes_in.count	Amount of traffic read from the server-side for all protocols	KibiByte
Server All Bytes Out	squid.server.all.kbytes_out.count	Amount of traffic written to origin servers and/or neighbor caches for server-side requests	KibiByte
Server All Requests	squid.server.all.requests.count	Number of requests forwarded to origin servers (or neighbor caches) for all server-side protocols	Count

Metric name	Metric key	Description	Unit
Server FTP Errors	squid.server.ftp.errors.count	Number of requests sent to FTP servers that resulted in an error	Count
Server FTP Bytes In	squid.server.ftp.kbytes_in.count	Amount of traffic read from FTP servers, including control channel traffic	KibiByte
Server FTP Bytes Out	squid.server.ftp.kbytes_out.count	Amount of traffic written to FTP servers, including control channel traffic	KibiByte
Server FTP Requests	squid.server.ftp.requests.count	Number of requests sent to FTP servers	Count

Metric name	Metric key	Description	Unit
Server HTTP Errors	squid.server.http.errors.count	Number of server-side HTTP requests that resulted in an error	Count
Server HTTP Bytes In	squid.server.http.kbytes_in.count	Amount of traffic read from HTTP origin servers and neighbor caches	KibiByte
Server HTTP Bytes Out	squid.server.http.kbytes_out.count	Amount of traffic written to HTTP origin servers and neighbor caches	KibiByte
Server HTTP Requests	squid.server.http.requests.count	Number of server-side requests to HTTP servers, including neighbor caches	Count

Metric name	Metric key	Description	Unit
ICP Bytes Received	squid.icp.kbytes_recv.count	Amount of traffic received in all ICP messages, including both queries and replies	KibiByte
ICP Bytes Sent	squid.icp.kbytes_sent.count	Amount of traffic sent in all ICP messages, including both queries and replies	KibiByte
ICP Packets Received	squid.icp.pkts_recv.count	Number of ICP messages received from neighbors, including both queries and replies	Count
ICP Packets Sent	squid.icp.pkts_sent.count	Number of ICP messages sent to neighbors. This includes both queries and replies but doesn't include HTCP messages	Count
ICP Query Bytes Received	squid.icp.q_kbytes_recv.count	Amount of traffic received from neighbors in ICP queries	KibiByte
ICP Query Bytes Sent	squid.icp.q_kbytes_sent.count	Amount of traffic sent to neighbors in ICP queries	KibiByte
ICP Queries Received	squid.icp.queries_recv.count	Number of ICP queries received from neighbors	Count
ICP Queries Sent	squid.icp.queries_sent.count	Number of ICP queries sent to neighbors	Count
ICP Query Timeouts	squid.icp.query_timeouts.count	Number of times that Squid timed out waiting for ICP replies to arrive	Count
ICP Reply Bytes Received	squid.icp.r_kbytes_recv.count	Amount of traffic received from neighbors in ICP replies	KibiByte
ICP Reply Bytes Sent	squid.icp.r_kbytes_sent.count	Amount of traffic sent to neighbors in ICP replies	KibiByte
ICP Replies Queued	squid.icp.replies_queued.count	Number of times Squid queued an ICP message after the initial attempt to send failed	Count
ICP Replies Received	squid.icp.replies_recv.count	Number of ICP replies received from neighbors	Count
ICP Replies Sent	squid.icp.replies_sent.count	Number of ICP replies sent to neighbors	Count
ICP Times Used	squid.icp.times_used.count	Number of times ICP resulted in the selection of a neighbor as the next-hop for a cache miss	Count

Related to Squid

Extensions

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Full version history

To have more information on how to install the downloaded package, please follow the instructions on this page.

ReleaseDate

Full version history

Version 2.0.1

Initial release of the OneAgent squid extension

52 metrics across 8 feature sets
A new entity called Squid Proxy, SAME_AS a PROCESS_GROUP_INSTANCE, RUNS_ON a HOST
Entity screens and injections to the HOST and PGI screens
An overview dashboard for all Squid Proxy instances

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