Messages de journalisation multilignes et traces de pile

Modifier en ligne

Instana prend en charge les messages de journalisation multilignes et les traces de pile provenant de conteneurs ( Docker et containerd ). Les messages de journalisation multilignes et les traces de pile sont regroupés en un seul événement, ce qui simplifie le dépannage.

Messages de journalisation multilignes

Les messages de journalisation multilignes apparaissent généralement sous forme de messages de journalisation individuels distincts. Instana identifie les messages de journal individuels qui font partie d'un seul message de journal multiligne en fonction de l'horodatage. À partir du message de journal le plus récent comportant un horodatage, chaque message de journal suivant sans horodatage est considéré comme faisant partie d'un message de journal multiligne.

Les exemples suivants montrent des messages de journalisation multilignes :

Exemple 1

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v3.2.5)

Exemple 2

2023-10-08T08:49:17.645+00:00 | INFO | nstana-sensor-scheduler-thread-1 | PackageInstaller | com.instana.discovery-python - 1
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/pip/_internal/cli/base_command.py", line 223, in _main
        status = self.run(options, args)
  File "/usr/local/lib/python3.6/site-packages/pip/_internal/cli/req_command.py", line 180, in wrapper
        return func(self, options, args)
  File "/usr/local/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 454, in run
        options.target_dir, target_temp_dir, options.upgrade
  File "/usr/local/lib/python3.6/site-packages/pip/_internal/commands/install.py", line 461, in _handle_target_dir
        ensure_dir(target_dir)
  File "/usr/local/lib/python3.6/site-packages/pip/_internal/utils/misc.py", line 117, in ensure_dir
        os.makedirs(path)
  File "/usr/lib64/python3.6/os.py", line 210, in makedirs
        makedirs (head, mode, exist_ok)
  File "/usr/lib64/python3.6/os.py", line 210, in makedirs
        makedirs (head, mode, exist_ok)
  File "/usr/lib64/python3.6/os.py", line 210, in makedirs
        makedirs (head, mode, exist_ok)
  [Previous line repeated 1 more time]
  File "/usr/lib64/python3.6/os.py", line 220, in makedirs
        mkdir(name, mode)
FileNotFoundError: [Errno 2] No such file or directory: '/proc/1710'

2023-10-08T08:49:21.317+00:00 | INFO_ | d8f6c8dac361e3387053486ae4957736 | Docker| com.instana.sensor-docker – 1.1.5

L'image suivante montre un exemple de message de journalisation multiligne « Java™ » dans les journaux « Instana » :

Traces de pile

Instana prend en charge les traces de pile des applications Java™, Python et Go. Instana ne prend en compte qu'un sous-ensemble de formats de journaux définis comme standard à partir de ces langages. Les traces de pile sont identifiées et regroupées à l'aide d'expressions régulières basées sur la norme pour chaque langage.

Exemple de trace de pile d' Java™

// Example 1:
Exception in thread "main" java.lang.RuntimeException: A test exception
  at com.stackify.stacktrace.StackTraceExample.methodB(StackTraceExample.java:13)
  at com.stackify.stacktrace.StackTraceExample.methodA(StackTraceExample.java:9)
  at com.stackify.stacktrace.StackTraceExample.main(StackTraceExample.java:5)

// Exception name: java.lang.RuntimeException
// Exception message: A test exception
// Stack trace: all lines


// Example 2:
com.instana.backend.common.exception.InstanaException: java.io.InterruptedIOException: Connection has been shut down
        at com.instana.backend.common.client.AbstractHttpClient.execute(AbstractHttpClient.java:217)
        at com.instana.groundskeeper.client.GroundskeeperClient.getHttpEndpointConfigs(GroundskeeperClient.java:360)
        at com.instana.spanprocessing.stream.common.ReloadingConfigCache.loadInternal(ReloadingConfigCache.java:79)
        at com.instana.spanprocessing.stream.common.ReloadingConfigCache$1.reload(ReloadingConfigCache.java:68)
        at com.instana.spanprocessing.stream.common.ReloadingConfigCache$1.reload(ReloadingConfigCache.java:59)
        at com.github.benmanes.caffeine.cache.CacheLoader.lambda$asyncReload$2(CacheLoader.java:190)
        at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.io.InterruptedIOException: Connection has been shut down
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:342)
        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
        at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
        at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
        at com.instana.backend.common.client.AbstractHttpClient.executeInternalRequest(AbstractHttpClient.java:238)
        at com.instana.backend.common.client.AbstractHttpClient.execute(AbstractHttpClient.java:212)
        ... 9 common frames omitted
Caused by: org.apache.http.impl.conn.ConnectionShutdownException: null
        at org.apache.http.impl.conn.CPoolProxy.getValidConnection(CPoolProxy.java:77)
        at org.apache.http.impl.conn.CPoolProxy.getSSLSession(CPoolProxy.java:137)
        at org.apache.http.impl.client.DefaultUserTokenHandler.getUserToken(DefaultUserTokenHandler.java:82)
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:326)
        ... 16 common frames omitted

// Exception name: com.instana.backend.common.exception.InstanaException
// Exception message: java.io.InterruptedIOException: Connection has been shut down
// Stack trace: all lines


// Example 3 (suppressed exceptions):
Exception in thread "main" java.lang.RuntimeException: I wanted to access this resource. Bad luck. Its dirty resource !!!
    at DirtyResource.accessResource(DirtyResource.java:9)
    at SuppressedExceptionDemoWithTryWithResource.main(SuppressedExceptionDemoWithTryWithResource.java:12)
    Suppressed: java.lang.NullPointerException: Remember me. I am your worst nightmare !! I am Null pointer exception !!
        at DirtyResource.close(DirtyResource.java:19)
        at SuppressedExceptionDemoWithTryWithResource.main(SuppressedExceptionDemoWithTryWithResource.java:13)
                Caused by: org.apache.http.impl.conn.ConnectionShutdownException: null
                                at org.apache.http.impl.conn.CPoolProxy.getValidConnection(CPoolProxy.java:77)

// Exception name: java.lang.RuntimeException
// Exception message: I wanted to access this resource. Bad luck. Its dirty resource !!!
// Stack trace: all lines

L'image suivante montre un exemple de trace de pile d' Java™ s provenant des journaux d' Instana :

Exemple de trace de pile d' Python

# Example 1:
Traceback (most recent call last):
  File "example.py", line 5, in <module>
    say('Micheal')
  File "example.py", line 3, in say
    print('Hello, ' + nam)
NameError: name 'nam' is not defined

# Exception type: NameError
# Exception message: name 'nam' is not defined
# Stack trace: all lines


# Example 2 (handling an exception raises another exception, with logger used to log):
ERROR:root:Everything is broken
Traceback (most recent call last):
  File "/tmp/spam2.py", line 13, in throws
    1 / 0
ZeroDivisionError: division by zero

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
 File "/tmp/spam2.py", line 18, in <module>
    f1()
  File "/tmp/spam2.py", line 2, in f1
    f2()
  File "/tmp/spam2.py", line 5, in f2
    f3()
  File "/tmp/spam2.py", line 8, in f3
    throws()
  File "/tmp/spam2.py", line 15, in throws
    raise Exception("boom")
Exception: boom

# Exception type: ZeroDivisionError
# Exception message: division by zero
# Stack trace: all lines


# Example 3 (source not available):
Traceback (most recent call last):
  File "example.py", line 5, in <module>
  File "example.py", line 3, in say
NameError: name 'nam' is not defined

# Exception type: NameError
# Exception message: name 'nam' is not defined
# Stack trace: all lines

Exemple de trace de pile d' Golang

Panic: Want something

goroutine 1 [running]:
main.Example(0x2080c3f50, 0x2, 0x4, 0x425c0, 0x5, 0xa)
        /Users/bill/Spaces/Go/Projects/src/github.com/goinaction/code/temp/main.go:9 +0x64
main.main()
        /Users/bill/Spaces/Go/Projects/src/github.com/goinaction/code/temp/main.go:5 +0x85

goroutine 2 [runnable]:
runtime.forcegchelper()
        /Users/bill/go/src/runtime/proc.go:90
runtime.goexit()
        /Users/bill/go/src/runtime/asm_amd64.s:2232 +0x1

goroutine 3 [runnable]:
runtime.bgsweep()
        /Users/bill/go/src/runtime/mgc0.go:82
runtime.goexit()
        /Users/bill/go/src/runtime/asm_amd64.s:2232 +0x1

# Exception type: null
# Exception message: Want something
# Stack trace: all lines