Skip to content

CI Reliability 2022-11-08#422

New issue
New issue
Open
Open
CI Reliability 2022-11-08#422
@github-actions

Description

@github-actions
github-actions
bot
opened on Nov 8, 2022

Failures in node-test-pull-request/47682 to node-test-pull-request/47775 that failed more than 2 PRs
(Generated with ncu-ci walk pr --stats=true --markdown /home/runner/work/reliability/reliability/results.md)

UTC TimeRUNNINGSUCCESSUNSTABLEABORTEDFAILUREGreen Rate
2022-11-08 00:1715252675.15%

CCTest Failure

Reason[ RUN ] InspectorSocketTest.HostIPv6NonRoutable
TypeCC_TEST_FAILURE
Failed PR2 (nodejs/node#45321, nodejs/node#45294)
Appearedtest-azure_msft-win10_vs2019-x64-4, test-rackspace-win2012r2_vs2019-x64-6
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47697/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47724/
Example
[ RUN ] InspectorSocketTest.HostIPv6NonRoutable C:\workspace\node-compile-windows\node\test\cctest\test_inspector_socket.cc(323): error: Value of: (!expectation.read_expected) Actual: true Expected: false [ FAILED ] InspectorSocketTest.HostIPv6NonRoutable (5001 ms)

Jenkins Failure

ReasonBuild timed out (after 60 minutes). Marking the build as failed.
TypeJENKINS_FAILURE
Failed PR3 (nodejs/node#45299, nodejs/node#45294, nodejs/node#45363)
Appearedtest-softlayer-ubi81_container-x64-1, test-digitalocean-ubi81_container-x64-1, test-rackspace-win2012r2_vs2019-x64-5
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47693/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47775/
Example
Build timed out (after 60 minutes). Marking the build as failed.
ReasonBacking channel 'JNLP4-connect connection from ... is disconnected.
TypeJENKINS_FAILURE
Failed PR2 (nodejs/node#45323, nodejs/node#45266)
Appearedtest-digitalocean-freebsd12-x64-2, test-digitalocean-freebsd12-x64-1
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47698/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47700/
Example
java.io.IOException: Backing channel 'JNLP4-connect connection from 107.170.28.213/107.170.28.213:12485' is disconnected. at hudson.remoting.RemoteInvocationHandler.channelOrFail(RemoteInvocationHandler.java:215) at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:285) at jdk.proxy2/jdk.proxy2.$Proxy87.isAlive(Unknown Source) at hudson.Launcher$RemoteLauncher$ProcImpl.isAlive(Launcher.java:1215) at hudson.Launcher$RemoteLauncher$ProcImpl.join(Launcher.java:1207)

Build Failure

Reasonerror: ld returned 1 exit status
TypeBUILD_FAILURE
Failed PR10 (nodejs/node#45289, nodejs/node#45331, nodejs/node#45332, nodejs/node#45204, nodejs/node#45299, nodejs/node#45339, nodejs/node#45243, nodejs/node#45335, nodejs/node#45341, nodejs/node#45294)
Appearedtest-digitalocean-ubuntu1804-x64-1
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47723/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47741/
Example
error: ld returned 1 exit status deps/openssl/openssl-cli.target.mk:289: recipe for target '/home/iojs/build/workspace/node-test-commit-linux/out/Release/openssl-cli' failed make[2]: *** [/home/iojs/build/workspace/node-test-commit-linux/out/Release/openssl-cli] Error 1 make[2]: *** Waiting for unfinished jobs.... rm fae5cd31e116e929ac9742c7ac8b778409c12442.intermediate Makefile:134: recipe for target 'node' failed
Reasonerror: remote GitHub already exists.
TypeBUILD_FAILURE
Failed PR7 (nodejs/node#45289, nodejs/node#45228, nodejs/node#45230, nodejs/node#44412, nodejs/node#45299, nodejs/node#45339, nodejs/node#44935)
Appearedtest-rackspace-win2012r2_vs2019-x64-4, test-rackspace-win2012r2_vs2019-x64-1, test-rackspace-win2012r2_vs2017-x64-1, test-rackspace-win2012r2_vs2019-x64-6
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47684/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47768/
Example
error: remote GitHub already exists. > git fetch --prune --no-tags GitHub From https://github.com/nodejs/build 7781f9b..e26d18d main -> GitHub/main
ReasonERROR: Step ?Publish JUnit test result report? failed: No test report files were found. Configuration error?
TypeBUILD_FAILURE
Failed PR2 (nodejs/node#45294, nodejs/node#45335)
Appearedtest-joyent-smartos20-x64-3, test-equinix-rhel8_container-arm64-1, test-equinix-ubuntu1804_container-arm64-2, test-equinix-ubuntu2004_container-arm64-2, test-equinix-ubuntu2004_container-armv7l-1, test-equinix-ubuntu1804_sharedlibs_container-arm64-3, test-osuosl-aix72-ppc64_be-3, test-equinix-debian10_container-armv7l-2, test-equinix-ubuntu2004_container-armv7l-2, test-equinix-debian10_container-armv7l-1, test-osuosl-aix72-ppc64_be-4
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47720/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47739/
Example
ERROR: Step ?Publish JUnit test result report? failed: No test report files were found. Configuration error? Collecting metadata... Metadata collection done. Notifying upstream projects of job completion Finished: FAILURE
ReasonERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error?
TypeBUILD_FAILURE
Failed PR2 (nodejs/node#45294, nodejs/node#45335)
Appearedtest-digitalocean-freebsd12-x64-2, test-ibm-rhel8-s390x-4, test-ibm-rhel8-s390x-3
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47722/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47739/
Example
ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error? Collecting metadata... Metadata collection done. Notifying upstream projects of job completion Finished: FAILURE
Reasonerror C2471: cannot update program database 'C:\workspace\node-compile-windows\node\out\Release\v8_initializers_host.pdb' [C:\workspace\node-compile-windows\node\tools\v8_gypfiles\v8_initializers_host.vcxproj]
TypeBUILD_FAILURE
Failed PR2 (nodejs/node#45289, nodejs/node#45228)
Appearedtest-rackspace-win2012r2_vs2019-x64-6, test-rackspace-win2012r2_vs2019-x64-1
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47695/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47712/
Example
error C2471: cannot update program database 'C:\workspace\node-compile-windows\node\out\Release\v8_initializers_host.pdb' [C:\workspace\node-compile-windows\node\tools\v8_gypfiles\v8_initializers_host.vcxproj] bigint-tq-csa.cc C:\workspace\node-compile-windows\node\deps\v8\src\base\bits.h(350,31): warning C4146: unary minus operator applied to unsigned type, result still unsigned [C:\workspace\node-compile-windows\node\tools\v8_gypfiles\v8_initializers_host.vcxproj] C:\workspace\node-compile-windows\node\out\Release\obj\global_intermediate\torque-generated\src\objects\api-callbacks-tq-csa.cc(1640,1): error C2471: cannot update program database 'C:\workspace\node-compile-windows\node\out\Release\v8_initializers_host.pdb' [C:\workspace\node-compile-windows\node\tools\v8_gypfiles\v8_initializers_host.vcxproj] C:\workspace\node-compile-windows\node\out\Release\obj\global_intermediate\torque-generated\src\ic\handler-configuration-tq-csa.cc(438,1): error C2471: cannot update program database 'C:\workspace\node-co...

JSTest Failure

Reasonpummel/test-fs-largefile
TypeJS_TEST_FAILURE
Failed PR16 (nodejs/node#45315, nodejs/node#45299, nodejs/node#45290, nodejs/node#45287, nodejs/node#45266, nodejs/node#45289, nodejs/node#42340, nodejs/node#45325, nodejs/node#45331, nodejs/node#45294, nodejs/node#45332, nodejs/node#45243, nodejs/node#45264, nodejs/node#45363, nodejs/node#44989, nodejs/node#44935)
Appearedtest-nearform-macos10.15-x64-2
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47689/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47768/
Example
not ok 3421 pummel/test-fs-largefile --- duration_ms: 0.75 severity: fail exitcode: 1 stack: |- node:internal/fs/utils:347 throw err; ^ Error: ENOSPC: no space left on device, ftruncate at Object.ftruncateSync (node:fs:1130:3) at Object.<anonymous> (/Users/iojs/build/workspace/node-test-commit-osx/nodes/osx1015/test/pummel/test-fs-largefile.js:37:4) at Module._compile (node:internal/modules/cjs/loader:1205:14) at Module._extensions..js (node:internal/modules/cjs/loader:1259:10) at Module.load (node:internal/modules/cjs/loader:1068:32) at Module._load (node:internal/modules/cjs/loader:909:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:82:12) at node:internal/main/run_main_module:23:47{errno: -28, syscall: 'ftruncate', code: 'ENOSPC' } Node.js v20.0.0-pre ...
Reasonpummel/test-fs-readfile-tostring-fail
TypeJS_TEST_FAILURE
Failed PR15 (nodejs/node#45315, nodejs/node#45299, nodejs/node#45290, nodejs/node#45287, nodejs/node#45266, nodejs/node#45289, nodejs/node#42340, nodejs/node#45325, nodejs/node#45331, nodejs/node#45294, nodejs/node#45332, nodejs/node#45243, nodejs/node#45264, nodejs/node#45363, nodejs/node#44989)
Appearedtest-nearform-macos10.15-x64-2
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47689/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47766/
Example
not ok 3422 pummel/test-fs-readfile-tostring-fail --- duration_ms: 0.93 severity: fail exitcode: 7 stack: |- /Users/iojs/build/workspace/node-test-commit-osx/nodes/osx1015/test/pummel/test-fs-readfile-tostring-fail.js:73 throw err; ^ AssertionError [ERR_ASSERTION]: ifError got unwanted exception: ENOSPC: no space left on device, write at Object.callback (/Users/iojs/build/workspace/node-test-commit-osx/nodes/osx1015/test/pummel/test-fs-readfile-tostring-fail.js:31:37) at callback (node:internal/streams/writable:555:21) at onwriteError (node:internal/streams/writable:418:3) at onwrite (node:internal/streams/writable:460:7) at node:internal/fs/streams:439:14 at FSReqCallback.wrapper [as oncomplete] (node:fs:945:5){generatedMessage: false, code: 'ERR_ASSERTION', actual: [Error: ENOSPC: no space left on device, write]{errno: -28, code: 'ENOSPC', syscall: 'write' }, expected:...
Reasonparallel/test-fs-readfile
TypeJS_TEST_FAILURE
Failed PR11 (nodejs/node#45315, nodejs/node#45299, nodejs/node#45290, nodejs/node#45266, nodejs/node#42340, nodejs/node#45325, nodejs/node#45331, nodejs/node#45294, nodejs/node#45243, nodejs/node#45363, nodejs/node#44989)
Appearedtest-nearform-macos10.15-x64-2, test-rackspace-win2012r2_vs2019-x64-6
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47689/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47766/
Example
not ok 793 parallel/test-fs-readfile --- duration_ms: 0.91 severity: fail exitcode: 1 stack: |- node:internal/fs/utils:347 throw err; ^ Error: ENOSPC: no space left on device, ftruncate at Object.ftruncateSync (node:fs:1130:3) at Object.truncateSync (node:fs:1089:14) at Object.<anonymous> (/Users/iojs/build/workspace/node-test-commit-osx/nodes/osx1015/test/parallel/test-fs-readfile.js:61:6) at Module._compile (node:internal/modules/cjs/loader:1205:14) at Module._extensions..js (node:internal/modules/cjs/loader:1259:10) at Module.load (node:internal/modules/cjs/loader:1068:32) at Module._load (node:internal/modules/cjs/loader:909:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:82:12) at node:internal/main/run_main_module:23:47{errno: -28, syscall: 'ftruncate', code: 'ENOSPC' } Node.js v20.0.0-pre ...
Reasonparallel/test-fs-promises-file-handle-readFile
TypeJS_TEST_FAILURE
Failed PR10 (nodejs/node#45315, nodejs/node#45299, nodejs/node#45290, nodejs/node#45266, nodejs/node#42340, nodejs/node#45325, nodejs/node#45331, nodejs/node#45294, nodejs/node#45363, nodejs/node#44989)
Appearedtest-nearform-macos10.15-x64-2
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47689/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47766/
Example
not ok 744 parallel/test-fs-promises-file-handle-readFile --- duration_ms: 0.105 severity: fail exitcode: 1 stack: |- node:internal/process/promises:289 triggerUncaughtException(err, true /* fromPromise */); ^ [Error: ENOSPC: no space left on device, ftruncate]{errno: -28, code: 'ENOSPC', syscall: 'ftruncate' } Node.js v20.0.0-pre ...
Reasonparallel/test-fs-watch-recursive
TypeJS_TEST_FAILURE
Failed PR9 (nodejs/node#45290, nodejs/node#45289, nodejs/node#45294, nodejs/node#45287, nodejs/node#45319, nodejs/node#42340, nodejs/node#45339, nodejs/node#45346, nodejs/node#45354)
Appearedtest-ibm-rhel8-s390x-4, test-osuosl-rhel8-ppc64_le-2, test-digitalocean-ubuntu1804_sharedlibs_container-x64-3, test-digitalocean-ubuntu1804_sharedlibs_container-x64-8, test-digitalocean-ubuntu1804_sharedlibs_container-x64-6, test-digitalocean-ubuntu1804_sharedlibs_container-x64-1, test-osuosl-rhel8-ppc64_le-3, test-digitalocean-ubuntu1804_sharedlibs_container-x64-2
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47683/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47764/
Example
not ok 1361 parallel/test-fs-watch-recursive --- duration_ms: 120.64 severity: fail exitcode: -15 stack: |- timeout ...
Reasonparallel/test-release-npm
TypeJS_TEST_FAILURE
Failed PR6 (nodejs/node#43525, nodejs/node#45289, nodejs/node#42340, nodejs/node#45294, nodejs/node#45287, nodejs/node#45290)
Appearedtest-equinix-debian10_container-armv7l-1, test-equinix-ubuntu2004_container-armv7l-1, test-softlayer-alpine311_container-x64-1, test-digitalocean-alpine312_container-x64-1, test-softlayer-debian10-x64-1, test-rackspace-fedora32-x64-1, test-digitalocean-fedora34-x64-1, test-ibm-rhel8-x64-2, test-digitalocean-ubuntu1804-x64-1, test-digitalocean-freebsd12-x64-1, test-nearform-macos10.15-x64-1, test-orka-macos11-x64-2, test-ibm-rhel8-s390x-4, test-osuosl-rhel8-ppc64_le-2, test-digitalocean-ubi81_container-x64-1, test-digitalocean-ubuntu1804_sharedlibs_container-x64-6, test-softlayer-ubuntu1804_sharedlibs_container-x64-1, test-softlayer-ubuntu1804_sharedlibs_container-x64-2, test-softlayer-ubuntu1804_sharedlibs_container-x64-3, test-softlayer-ubuntu1804_sharedlibs_container-x64-4, test-softlayer-ubuntu1804_sharedlibs_container-x64-5, test-joyent-smartos20-x64-4, test-equinix-rhel8_container-arm64-2, test-equinix-ubuntu1804_sharedlibs_container-arm64-4, test-equinix-ubuntu2004_sharedlibs_container-arm64-6, test-equinix-ubuntu2004_container-armv7l-2, test-osuosl-aix72-ppc64_be-4, test-equinix-ubuntu1804_container-arm64-1, test-nearform-macos11.0-arm64-1, test-azure_msft-win10_vs2019-x64-4, test-rackspace-win2012r2_vs2017-x64-3, undefined, test-nearform-macos10.15-x64-2, test-orka-macos11-x64-1, test-digitalocean-freebsd12-x64-2, test-digitalocean-alpine311_container-x64-1, test-softlayer-alpine312_container-x64-1, test-rackspace-debian10-x64-1, test-digitalocean-fedora32-x64-1, test-digitalocean-fedora34-x64-2, test-ibm-rhel8-x64-1, test-joyent-ubuntu1804-x64-1, test-osuosl-rhel8-ppc64_le-1, test-equinix-rhel8_container-arm64-1, test-equinix-ubuntu1804_container-arm64-2, test-equinix-ubuntu2004_container-arm64-2, test-softlayer-ubi81_container-x64-1, test-digitalocean-ubuntu1804_sharedlibs_container-x64-1, test-digitalocean-ubuntu1804_sharedlibs_container-x64-9, test-digitalocean-ubuntu1804_sharedlibs_container-x64-3, test-digitalocean-ubuntu1804_sharedlibs_container-x64-5, test-digitalocean-ubuntu1804_sharedlibs_container-x64-7, test-digitalocean-ubuntu1804_sharedlibs_container-x64-8, test-joyent-smartos20-x64-3, test-equinix-ubuntu1804_sharedlibs_container-arm64-5, test-equinix-debian10_container-armv7l-2, test-azure_msft-win10_vs2019-x64-1, test-rackspace-win2012r2_vs2013-x64-1, test-digitalocean-alpine311_container-x64-2, test-digitalocean-rhel8-x64-1, test-orka-macos10.15-x64-1, test-osuosl-rhel8-ppc64_le-4, test-equinix-ubuntu1804_sharedlibs_container-arm64-2, test-macstadium-macos11.0-arm64-3, test-ibm-rhel8-s390x-3, test-equinix-ubuntu2004_sharedlibs_container-arm64-4, test-digitalocean-ubuntu1804_sharedlibs_container-x64-10, test-ibm-rhel8-x64-3, test-ibm-ubuntu1804-x64-2, test-osuosl-aix72-ppc64_be-2, test-ibm-rhel8-s390x-2, test-osuosl-rhel8-ppc64_le-3, test-macstadium-macos11.0-arm64-4, test-equinix-ubuntu1804_sharedlibs_container-arm64-6, test-digitalocean-ubi81_container-x64-2, test-digitalocean-ubuntu1804_sharedlibs_container-x64-2, test-osuosl-aix72-ppc64_be-3, test-ibm-rhel8-s390x-1, test-equinix-ubuntu1804_sharedlibs_container-arm64-3, test-digitalocean-ubuntu1804_sharedlibs_container-x64-4, test-digitalocean-alpine312_container-x64-2
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47682/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47694/
Example
not ok 2058 parallel/test-release-npm --- duration_ms: 1.223 severity: fail exitcode: 1 stack: |- node:assert:124 throw new AssertionError(obj); ^ AssertionError [ERR_ASSERTION]: Expected values to be strictly equal: 0 !== 1 at Object.<anonymous> (/home/iojs/build/workspace/node-test-binary-armv7l/test/parallel/test-release-npm.js:20:10) at Module._compile (node:internal/modules/cjs/loader:1205:14) at Module._extensions..js (node:internal/modules/cjs/loader:1259:10) at Module.load (node:internal/modules/cjs/loader:1068:32) at Module._load (node:internal/modules/cjs/loader:909:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:82:12) at node:internal/main/run_main_module:23:47{generatedMessage: true, code: 'ERR_ASSERTION', actual: 0, expected: 1, operator: 'strictEqual' } Node.js v20.0.0 ...
Reasonaddons/request-interrupt/test
TypeJS_TEST_FAILURE
Failed PR4 (nodejs/node#45289, nodejs/node#45294, nodejs/node#45204, nodejs/node#45326)
Appearedtest-joyent-smartos20-x64-3
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47684/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47772/
Example
not ok 3517 addons/request-interrupt/test --- duration_ms: 300.72 severity: fail exitcode: -15 stack: |- timeout ...
Reasonparallel/test-inspector-multisession-ws
TypeJS_TEST_FAILURE
Failed PR3 (nodejs/node#45325, nodejs/node#45243, nodejs/node#45331)
Appearedtest-nearform-macos10.15-x64-2, test-nearform-macos10.15-x64-1, test-ibm-rhel8-s390x-4
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47704/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47727/
Example
not ok 1651 parallel/test-inspector-multisession-ws --- duration_ms: 15.365 severity: fail exitcode: 1 stack: |- [test] Connecting to a child Node process [test] Testing /json/list [test] Connecting to a child Node process [test] Testing /json/list [err] Debugger listening on ws://127.0.0.1:52218/00f55b78-7728-420f-9234-d9a934015ab0 [err] For help, see: https://nodejs.org/en/docs/inspector [err] [err] Debugger attached. [err] Debugger attached. [err] [test] Breaking in code and verifying events are fired Timed out waiting for matching notification (Initial pause) 1 ...
Reasonnode-api/test_fatal/test2
TypeJS_TEST_FAILURE
Failed PR2 (nodejs/node#45346, nodejs/node#45354)
Appearedtest-joyent-smartos20-x64-3
First CIhttps://ci.nodejs.org/job/node-test-pull-request/47746/
Last CIhttps://ci.nodejs.org/job/node-test-pull-request/47764/
Example
not ok 3617 node-api/test_fatal/test2 --- duration_ms: 300.130 severity: fail exitcode: -15 stack: |- timeout ...

Progress

  • [ RUN ] InspectorSocketTest.HostIPv6NonRoutable (2)
  • Build timed out (after 60 minutes). Marking the build as failed. (3)
  • Backing channel 'JNLP4-connect connection from ... is disconnected. (2)
  • error: ld returned 1 exit status (10)
  • error: remote GitHub already exists. (7)
  • ERROR: Step ?Publish JUnit test result report? failed: No test report files were found. Configuration error? (2)
  • ERROR: Step ‘Publish JUnit test result report’ failed: No test report files were found. Configuration error? (2)
  • error C2471: cannot update program database 'C:\workspace\node-compile-windows\node\out\Release\v8_initializers_host.pdb' [C:\workspace\node-compile-windows\node\tools\v8_gypfiles\v8_initializers_host.vcxproj] (2)
  • pummel/test-fs-largefile (16)
  • pummel/test-fs-readfile-tostring-fail (15)
  • parallel/test-fs-readfile (11)
  • parallel/test-fs-promises-file-handle-readFile (10)
  • parallel/test-fs-watch-recursive (9)
  • parallel/test-release-npm (6)
  • addons/request-interrupt/test (4)
  • parallel/test-inspector-multisession-ws (3)
  • node-api/test_fatal/test2 (2)

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Type

    No type

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions