Can anyone help me Java code to get Windows Service start time. Like how we get using Process Explorer.
Screenshots for enabling the service start time using Process Explorer
This is highly Windows-specific, so there is nothing built in to Java or its libraries for this. One possible approach is to use two external commands, sc and wmic to extract this information.
Use sc to get the process ID of the service you're interested in, for example for service W32Time:
C:\>sc queryex W32Time
SERVICE_NAME: W32Time
TYPE : 20 WIN32_SHARE_PROCESS
STATE : 4 RUNNING
(STOPPABLE, NOT_PAUSABLE, ACCEPTS_SHUTDOWN)
WIN32_EXIT_CODE : 0 (0x0)
SERVICE_EXIT_CODE : 0 (0x0)
CHECKPOINT : 0x0
WAIT_HINT : 0x0
PID : 1072
FLAGS :
Parse out the PID value (1072) and then do
C:\Users\jim>wmic process where processid="1072"
Caption CommandLine CreationClassName CreationDate CSCreationClassName CSName Description Execu
tablePath ExecutionState Handle HandleCount InstallDate KernelModeTime MaximumWorkingSetSize MinimumWorkingSetSiz
e Name OSCreationClassName OSName OtherO
perationCount OtherTransferCount PageFaults PageFileUsage ParentProcessId PeakPageFileUsage PeakVirtualSize PeakW
orkingSetSize Priority PrivatePageCount ProcessId QuotaNonPagedPoolUsage QuotaPagedPoolUsage QuotaPeakNonPagedPool
Usage QuotaPeakPagedPoolUsage ReadOperationCount ReadTransferCount SessionId Status TerminationDate ThreadCount
UserModeTime VirtualSize WindowsVersion WorkingSetSize WriteOperationCount WriteTransferCount
svchost.exe Win32_Process 20160709170336.990827-420 Win32_ComputerSystem HOME svchost.exe
1072 765 21060135
svchost.exe Win32_OperatingSystem Microsoft Windows 7 Professional |C:\Windows|\Device\Harddisk0\Partition2 66053
3433281 18371 17072 828 17616 142090240 28740
8 17481728 1072 46 185 51
232 240 9800 0 24
11076071 117727232 6.1.7601 28708864 6 820
Buried in that mess is the CreationDate field (value 20160709170336.990827-420) which is what you want. The -420 appears to be a timezone offset in minutes.
You can implement a class that is able to run Windows command to query the Windows logs. This can be done in this fashion:
Runtime rt = Runtime.getRuntime();
try {
rt.exec("Your command");
} catch (IOException e) {
e.printStackTrace();
}
Using wmic you'll be able to find the start time you want as stated above.
Unfortunately the sc won't be able to provide you with this kind of information. Another way (not sure if it would work though) is to query the window's event viewer for the logged event of a service starting (I think it's eventId is 902). After getting the information you can parse the string to find information regarding the service you're interested.
One word of warning though. If you're planning to deploy your app on older Windows installation be careful as old Windows installations (XP etc. etc.) may not always contain a valid WMIC installation, meaning that the command would not be available.
Related
I'm doing a little project that tries to compare (simulate) Bluetooth Legacy Advertisement with Extended Advertisement. So I have two threads (one per device) and they are doing their tasks. I run the program normally and it's not working (kinda expected that) but when I run it with debugger it works. I have only one breakpoint and it's after any meaningful operations. So that is when my question arises. Is there any difference between running it with or without debugger.
I'm using IntelliJ IDEA (newest version) and Java 1.8
Output when running normally (stopped by me):
343
Process finished with exit code -1
Output with debugger:
Connected to the target VM, address: '127.0.0.1:58359', transport: 'socket'
OpenJDK 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended
343
21 .. -39
[21, ... -39]
DONE
Disconnected from the target VM, address: '127.0.0.1:58359', transport: 'socket'
Process finished with exit code 0
Code fragment with breakpoint
void secondaryListen() {
if(!Simulation.World.channels[this.receivedAdvertisement.channel].empty) {
SecondaryMessage currentMessage = (SecondaryMessage) Simulation.World.channels[this.receivedAdvertisement.channel].getPayload();
for (byte b : currentMessage.content) {
System.out.print(b + " ");
this.receivedData.add(b);
}
System.out.println();
this.mode = Mode.SCAN;
if(currentMessage.lastMessage) {
this.mode = Mode.FINISHED; //BREAKPOINT ON THAT LINE
System.out.println(this.receivedData.toString());
}
}
}
Thanks for all the answers in advance!
I'm developing a MS with Kotlin and Micronaut which access a Firestore database. When I run this MS locally I can make it work with 128M because it's very simple just read and write data to Firestore, and not big amounts of data, really small data like this:
{
"project": "DUMMY",
"columns": [
{
"name": "TODO",
"taskStatus": "TODO"
},
{
"name": "IN_PROGRESS",
"taskStatus": "IN_PROGRESS"
},
{
"name": "DONE",
"taskStatus": "DONE"
}
],
"tasks": {}
}
I'm running this in App Engine Standard in a F1 instance (256 MB 600 MHz) with this properties in my app.yaml
runtime: java11
instance_class: F1 # 256 MB 600 MHz
entrypoint: java -Xmx200m -jar MY_JAR.jar
service: data-connector
env_variables:
JAVA_TOOL_OPTIONS: "-Xmx230m"
GAE_MEMORY_MB: 128M
automatic_scaling:
max_instances: 1
max_idle_instances: 1
I know all that properties for handling memory are not necessary but I was desperate trying to make this work and just tried a lot of solutions because my first error message was:
Exceeded soft memory limit of 256 MB with 263 MB after servicing 1 requests total. Consider setting a larger instance class in app.yaml.
The error below is not fixed with the properties in the app.yaml, but now everytime I make a call to return that JSON I get this error
2020-04-10 12:09:15.953 CEST
While handling this request, the process that handled this request was found to be using too much memory and was terminated. This is likely to cause a new process to be used for the next request to your application. If you see this message frequently, you may have a memory leak in your application or may be using an instance with insufficient memory. Consider setting a larger instance class in app.yaml.
It always last longer in the first request, I think due to some Firestore configuration, but the thing is that I cannot make that work, always getting the same error.
Do you have any idea what I could be doing wrong or what I need to fix this?
TL;DR The problem was I tried to used a very small instance for a simple application, but even with that I needed more memory.
Ok, a friend helped me with this. I was using a very small instance and even when I didn't get the error of memory limit it was a memory problem.
Updating my instance to a F2 (512 MB 1.2 GHz) solved the problem and testing my app with siege resulted in a very nice performance:
Transactions: 5012 hits
Availability: 100.00 %
Elapsed time: 59.47 secs
Data transferred: 0.45 MB
Response time: 0.30 secs
Transaction rate: 84.28 trans/sec
Throughput: 0.01 MB/sec
Concurrency: 24.95
Successful transactions: 3946
Failed transactions: 0
Longest transaction: 1.08
Shortest transaction: 0.09
My sysops friends tells me that this instances are more for python scripting code and things like that, not JVM REST servers.
I have web app that allow sent messages to queue, it deployed on Websphere Application Server and work very well.
I try to build light environment for autotests, but when i try to sent message to queue from test it returns to me MQJE001: Completion Code '2', Reason '2035'
I thought that problem in CHLAUTH rules but seems that i have all rights.
C:/> dspmqaut -m M00.EDOGO -n OEP.FROM.GW_SBAST.DLV -t q -p out-bychek-ao
Entity out-bychek-ao has the following authorizations for object OEP.FROM.GW_SBA
ST.DLV:
get
browse
put
inq
set
crt
dlt
chg
dsp
passid
passall
setid
setall
clr
error from logs :
AMQ8075: Authorization failed because the SID for entity 'out-bychek-a' cannot
be obtained.
EXPLANATION:
The Object Authority Manager was unable to obtain a SID for the specified
entity. This could be because the local machine is not in the domain to locate
the entity, or because the entity does not exist.
ACTION:
Ensure that the entity is valid, and that all necessary domain controllers are
available. This might mean creating the entity on the local machine.
----- amqzfubn.c : 2252 -------------------------------------------------------
7/9/2018 15:39:57 - Process(2028.3) User(MUSR_MQADMIN) Program(amqrmppa.exe)
Host(SBT-ORSEDG-204) Installation(Installation1)
VRMF(7.5.0.4) QMgr(M00.EDOGO)
AMQ9557: Queue Manager User ID initialization failed.
EXPLANATION:
The call to initialize the User ID failed with CompCode 2 and Reason 2035.
ACTION:
Correct the error and try again.
----- cmqxrsrv.c : 1975 -------------------------------------------------------
7/9/2018 15:39:57 - Process(2028.3) User(MUSR_MQADMIN) Program(amqrmppa.exe)
Host(SBT-ORSEDG-204) Installation(Installation1)
VRMF(7.5.0.4) QMgr(M00.EDOGO)
AMQ9999: Channel 'SC.EDOGO' to host '10.82.38.188' ended abnormally.
EXPLANATION:
The channel program running under process ID 2028(11564) for channel 'SC.EDOGO'
ended abnormally. The host name is '10.82.38.188'; in some cases the host name
cannot be determined and so is shown as '????'.
ACTION:
Look at previous error messages for the channel program in the error logs to
determine the cause of the failure. Note that this message can be excluded
completely or suppressed by tuning the "ExcludeMessage" or "SuppressMessage"
attributes under the "QMErrorLog" stanza in qm.ini. Further information can be
found in the System Administration Guide.
----- amqrmrsa.c : 909 --------------------------------------------------------
notice AMQ8075: Authorization failed because the SID for entity 'out-bychek-a' cannot in my account name lost last letter. Is it normal?
and this
DISPLAY CHLAUTH('SYSTEM.DEF.SVRCONN') MATCH(RUNCHECK) ALL ADDRESS('127.0.0.1') CLNTUSER('out-bychek-ao')
7 : DISPLAY CHLAUTH('SYSTEM.DEF.SVRCONN') MATCH(RUNCHECK) ALL ADDRESS('127.0.0.1') CLNTUSER('out-bychek-ao')
AMQ8898: Display channel authentication record details - currently disabled.
CHLAUTH(SYSTEM.*) TYPE(ADDRESSMAP)
DESCR(Default rule to disable all SYSTEM channels)
CUSTOM( ) ADDRESS(*)
USERSRC(NOACCESS) WARN(NO)
ALTDATE(2016-11-14) ALTTIME(17.33.34)
dmpmqaut -m M00.EDOGO -n OEP.FROM.GW_SBAST.DLV -t q -p out-bychek-ao -e
profile : OEP.FROM.GW_SBAST.DLV
object type: queue
entity : out-bychek-ao#alpha
entity tyoe: principal
authority : allmqi dlt chg dsp clr
- - - - - - - - -
profile : CLASS
object type: queue
entity : out-bychek-ao#alpha
entity tyoe: principal
authority : clt
I have Scala / Akka / Slick 3.x runnable that retrieve 25000 records in a Mysql 5.6 community DB. For each of them, it spawns an actor that will do 7 counts and return a case class containing those 7 values to the runner, which will, once finished save that as a csv file.
It works perfectly fine locally, it gets all the data, store them in memory, output them, close itself, everything is good. On my production DB, it's ok for about 40 seconds, I can see in the logs that it gets all the data until this happens :
[INFO] [03/24/2016 08:41:46.710] [indicator-runner-akka.actor.default-dispatcher-17] [akka://indicator-runner/user/user-usage-provider/$gO] Valid data set sent for xxxxxx
[INFO] [03/24/2016 08:41:46.711] [indicator-runner-akka.actor.default-dispatcher-17] [akka://indicator-runner/user/user-usage-provider/$fO] Valid data set sent for xxxxxx
[INFO] [03/24/2016 08:41:46.722] [indicator-runner-akka.actor.default-dispatcher-9] [akka://indicator-runner/user/user-usage-provider/$uN] Valid data set sent for xxxxxx
[INFO] [03/24/2016 08:41:46.731] [indicator-runner-akka.actor.default-dispatcher-12] [akka://indicator-runner/user/user-usage-provider/$hO] Valid data set sent for xxxxxx
[ERROR] [03/24/2016 08:41:46.823] [indicator-runner-akka.actor.default-dispatcher-6] [akka://indicator-runner/user/user-usage-provider/$kO] Should'nt receive this message : Failure(com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.)$
At this point, i shutdown the actorsystem and return appropriate exit code, but this operation hasn't gone through.
I faced the maxQueue exception in slick which I fixed with :
executor = AsyncExecutor("HeavyLoad", numThreads = 24, queueSize = 10000)
I also tried :
echo 4096 > /proc/sys/net/core/somaxconn
And set max_connections to 500... No luck
Any ideas of what could go wrong ?
Thank you !
interface-bounding:The Linux bonding driver provides a method for aggregating
multiple network interfaces into a single logical bonded interface. The logical bounded interface will have only one MAC address,which is bounded from one of the original interfaces. ifconfig will show all the original interfaces with the same MAC address.
Now,I'm going to found the original MAC address of each interface in Java.How ?
I has confirmed that I can't find them through NetworkInterface.getInterfaceAddresses() and NetworkInterface.getSubInterfaces()
Any other ways?
UPDATE:
before bounding:
after bound eth1 and eth2 to bound0:
The java code show interfaces info:
ALL interfaces:[name:bond0 (bond0), name:eth0 (eth0), name:lo (lo)]
they are [{netIf bond0,host 192.168.122.38,mac 525400F801B9,ip 192.168.122.38}, {netIf eth0,host hatest02,mac 5254008C5B48,ip 192.168.10.38}]
cat /proc/net/bonding/bond0
Will show you the original mac's for both bonded interfaces
Full output, less private data below:
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: None
Currently Active Slave: eno49
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eno49
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 28:80:23:xx:xx:ec
Slave queue ID: 0
Slave Interface: eno50
MII Status: down
Speed: Unknown
Duplex: Unknown
Link Failure Count: 0
Permanent HW addr: 28:80:23:xx:xx:ed
Slave queue ID: 0*
cat /proc/net/bonding/bondX
where bondX is the name of your bonded interface
NetworkInterface is useless, IMHO. I've never gotten reliable information from it. Execute ifconfig and parse the output, that is your best option.
UPDATE: awesome, somebody downvoted. So post an answer and show what works, because I stand by the assertion that NetworkInterface is unreliable. A modern alternative to ifconfig that is capable of showing bonding information is ip link show type bond.